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Printed 2017. 07. PART 01

Contents 03 04 06 08 회사소개 / Introduction 연혁 / Company History 공장소개 / Manufacturing 제조공정 / Process Part 1 12 열연코일 / Hot Rolled Coil 56 냉연코일 / Cold Rolled Coil 114 후판 / Steel Plate 188 강관 / Steel Pipe 212 강관파일 / Steel Pipe Pile 222 스테인리스용접강관 / Stainless Steel Welded Pipe & Tube 238 도량형환산표 / Conversion Table 246 주의사항 / Caution 248 네트워크 / Global Network Corporate Identity (CI) 현대제철사명을부각시킨심벌 H 는 High Spirit( 진취적기상 ), Harmony( 조화 ), Humanity( 인류애 ) 를상징합니다. H 의견고한양축은현대제철의신 기존사업과기업, 고객을뜻하며가운데교량 (Bridge) 은양축의균형적만남과통합으로성장하는미래를의미합니다. 블루컬러는현대제철이첨단기술과신뢰를바탕으로밝은미래환경의청사진을구현하는선도기업임을나타냅니다. High Spirit, Harmony, Humanity 는현대제철이도전적이고혁신적인기상과조화를통해밝은미래사회에공헌하는세계최고의철강기업으로성장해나간다는뜻입니다. The symbol H, which embosses the mission of, stands for High Spirit, Harmony, and Humanity. The firm and stable axes on both sides of the H imply the past and new businesses and customers. The bridge connecting the two axes suggests a promising future of, growing with balanced contact and integration of both axes. The bright blue color shows the leading position of in future environmental concerns, proposing a new blueprint based on modern technology and reliability. In other words, High Spirit, Harmony, Humanity collectively represent that will grow into a worldleading steel company with high spirit and harmony, thereby contributing to the humanity. 현대제철은미래사업환경의핵심기반인철을생산하고, 첨단기술을바탕으로최적의소재를공급하는파트너입니다. 고객의기대를뛰어넘는혁신적인제품과서비스로사업영역을확장하고, 차별화된방식으로고객이원하는가치의제품을생산하고있습니다. 현대제철은철, 그이상의가치를창조하고, 상생속에발전하는새로운산업생태계모델을만들어갈것입니다. HYUNDAI STEEL manufactures steel, a key foundation for future business environment, and supplies optimal materials through cuttingedge technologies. The company is a reliable partner for an increasing number of businesses around the world. We are expanding our business territories with innovative products and services that exceed our customers expectations while manufacturing products that transcend targeted values through differentiation. HYUNDAI STEEL will continue to create values and new industrial ecosystems that develop in harmony.

Company History 연혁 창립초기의대한중공업공사전경 A panoramic view of Korea Heavy Industry Corporation at an early stage of its foundation 1950s 1953. 06. 대한중공업공사창립 Established as Korea Heavy Industry Corporation 중국청도현대기계유한공사전경 A panoramic view of Qingdao Hyundai Machinery Co., Ltd. in China 1990s 1999. 12. 중국청도현대기계유한공사설립 Established Qingdao Hyundai Machinery Co., Ltd. in China 2000s 2001. 04. 현대자동차그룹으로출범 Incorporated into Hyundai Motor Group 2004. 10. 한보철강공업 당진공장인수합병식 Ceremony marking the acquisition and merger of Hanbo Iron & Steel s Dangjin plant 2006. 10. 일관제철소기공식 Held groundbreaking ceremony for Integrated Steelworks 현대자동차그룹으로출범하는기념식에참석한정몽구회장 Chairman Mongkoo, Chung attending incorporation ceremony into Hyundai Motor Group in 2001 2006 년일관제철소기공식 Held groundbreaking ceremony for Integrated Steelworks in 2006 H 형강공장 A H Section mill 1980s 1982. 03. H 형강공장조업개시 Commissioned a H Section mill 1987. 05. 기업공개 Undertook initial public offering (IPO) 2010 년제 2 고로화입식 Chairman Mongkoo, Chung firing Blast Furnace No.1 at ceremony in 2010 4 5 2010s 2010. 01. 일관제철소 1 고로화입식 Operation of Blast Furnace No.1 2010. 04. 일관제철소준공식 Completed Integrated Steelworks 2010. 11. 일관제철소 2 고로화입식 Operation of Blast Furnace No.2 2013. 09. 일관제철소 3 고로화입식 Operation of Blast Furnace No.3 2015. 07. 현대하이스코합병 Merged with Hyundai Hysco Co., Ltd. 2015. 10. 특수강공장준공 Operation of Special Steelworks

Manufacturing 공장소개 당진제철소 Dangjin Integrated Steelworks 2010년국내민간기업최초로일관제철소를가동해한국철강사를다시쓰고있는당진제철소는고로및전기로공정을갖췄으며, 특수강공장을보유한종합제철소입니다. As the nation s first privatized integrated steelworks that developed in 2010, Dangjin Integrated Steelworks has been rewriting the history of steel in South Korea. The Steelworks includes both blast furnace and electric arc furnace zones, and has a special steel mill. 생산제품열연강판, 냉연강판, 후판, 철근, 특수강 Products Hotrolled Coil, Coldrolled Coil, Steel Plate, Reinforcing Bar, Special Steel 면적 (Area) 8,820,000 m² 순천공장 Suncheon Works 단일설비로는세계최대인 120만톤규모의연속소둔설비를갖춘순천공장은연간 200만톤의냉연제품을생산할수있는공장입니다. 용융아연도금설비, 전기아연도금설비, 착색도장설비등의최첨단설비를갖추고자동차용, 가전용, 건자재용등다양한냉연강판을생산하고있습니다. Equipped with stateoftheart facilities, including a Continuous Annealing Line (CAL) boasting the world s largest production capacity of 1.2 million tonnes, a Continuous Galvanizing Line (CGL), an Electrolytic Galvanizing Line, and a Color Coating Line, it produces a broad range of coldrolled steel for automobiles, consumer electronics, and construction materials. 생산제품냉연강판, 용융아연도금강판, 전기아연도금강판, 컬러강판 Products Coldrolled Coil, Hotdipped Galvanized Steel Sheet, Electrolytic Galvanized Steel Sheet, Precoated Steel Sheet 면적 (Area) 822,000 m² 인천공장 Incheon Works 한국철강산업의효시가된인천공장은세계최대단일전기로공장으로서친환경, 고효율의시설을갖추고있습니다. s Incheon Works was the very first steel plant in Korea. It is now the world s largest electric arc furnace mill, boasting a wide range of ecofriendly, highefficiency facilities. 생산제품 H형강, 철근, 일반형강, 스테인리스강판 Products H Section, Reinforcing Bar, Sections, Stainless Steel 면적 (Area) 920,000 m² 순천단조공장 Suncheon Forging Works 자유단조제품을생산하는순천단조공장은잉곳과샤프트등의제품을생산하고있습니다. Suncheon Forging Works produces freeforging products such as ingots and shafts. 생산제품잉곳, 단조품 Products Ingot, Forging 면적 (Area) 281,000 m² 포항공장 Pohang Works 세계최고수준의기술력을바탕으로강력한국제경쟁력을자랑하는포항공장은고부가가치철강제품시장을선도하고있습니다. s Pohang Works boasts a wide range of industryleading technologies and strong global competitiveness. It is the leader of the Korean steel industry s highvalue added market. 예산공장 Yesan Works 자동차경량화제품생산의중심인예산공장은핫스탬핑 (HotStamping) 설비 10 기, TWB(Tailor Welded Blanks) 설비 2기등을보유하고고품질의자동차부품을생산하고있습니다. Yesan Works produces highquality lightweight automotive products through its ten hotstamping units and two tailorwelded blank units. 생산제품 H형강, 철근, 레일, 원형강, 롤, 무한궤도 Products H Section, Reinforcing Bar, Railroad Rail, Round Section, Roll, Track Shoe Assembly 면적 (Area) 660,000 m² 생산제품 자동차경량화용부품 Products Lightweight parts 면적 (Area) 1,190,000 m² 울산공장 Ulsan Works 최첨단용접설비와자동화설비등국제경쟁력을갖춘울산공장은에너지개발, 산업, 건설, 자동차등에사용되는고부가가치강관제품과자동차경량화제품을생산, 공급하고있습니다. Ulsan Works produces and supplies high valueadded steel pipe products and lightweight automotive parts used primarily in energy development, construction, and automobile manufacturing. The global competitiveness at Ulsan Works has been greatly increased thanks to its cuttingedge welding and automation facilities. 생산제품 강관, 자동차경량화용부품 Products Steel Pipes, Lightweight parts 면적 (Area) 254,000 m² 청도공장 Qingdao Factory 중국시장의잠재력과무한한가능성을내다보며지난 2000년설립된청도공장은무한궤도부품을조립 생산하고있습니다. Established in 2000 to meet China s rapidly increasing need for steel products, the Qingdao Factory produces track shoe assemblies. 생산제품트랙어셈블리, 롤러 Products Track Assembly, Roller 면적 (Area) 66,000 m² 6 7

Process 제조공정 Integrated Steelworks Process 일관제철공정 Electric Arc Furnace Process 전기로공정 A 원료저장시설하역부두로부터운반된원료를저장하는시설 코크스공정원료탄을고온건류해코크스를생산하는공정 소결공정분철광석에석회석등의부원료를혼합한후고온에서가열해소결광을생산하는공정 고로공정소결광과코크스를사용해용선 ( 쇳물 ) 을생산하는공정 토페도카고로에서생산된용선을제강공장으로이송하는차량 B 용선예비처리용선중의불순물을제거하는공정 C D E F G 가열슬래브를압연에필요한온도까지가열하는공정 스케일제거재료표면에생기는스케일을물의압력을이용해제거하는공정 조압연스케일제거, 내기, 최종압연을위한준비압연과정 사상압연조압연된판재를최종제품의에맞는와, 형상으로조정하고생산하는공정 전로산소를취입해산화반응에의해용선중의탄소를제거하는공정 K H L M N I O P 전단제품을고객의요구에맞게적합한으로절단하는공정열처리압연이완료된후판의강도및인성을증가시켜고급강종의후판을생산하는공정 후판 강관 J Q S T 정련용강중의산소및수소등가스를제거하고성분을조정하는공정연속주조용융된쇳물을연속적으로주조해반제품을만드는과정반제품 ( 슬래브 ) 최종철강제품을생산하기위한중간단계의제품으로서후판및열연의소재로사용냉각압연이완료된제품에냉각수를분사, 냉각하는공정권취열연강판을보관및운반이용이하도록코일로만드는공정 U W R 냉간압연산세과정을거친열연강판을상온에서압연해냉연강판을만드는공정도금냉연강판을아연욕조에통과시켜도금하는공정경량화제품 산세열연강판의스케일을산성물질로제거하는공정 V X 철스크랩철강을소재로한제품의폐기과정에서발생하는고철 전기로철스크랩을용해해쇳물을제조하는과정 정련 (Ladle Furnace) 전기로에서나온쇳물의온도및성분을조정하는공정 연속주조용융된쇳물을연속적으로주조해반제품을만드는과정 반제품최종철강제품을생산하기위한중간단계의제품 A B C D E 철근반제품을압연해다양한의철근을생산하는공정 I F G H 가열벙커 C 유, 천연가스를이용해압연에필요한온도까지가열하는공정 압연두개의롤에힘을가해반제품을원하는모양의완제품으로생산하는과정 형강반제품을압연, 교정, 냉각해다양한와길이의형강을만드는공정 A Raw materials storage facility stores raw materials unloaded from ships B Coking produces coke from coal through hightemperature carbonization C Sintering produces sintered ore by adding raw materials (such as heated limestone) to powdered ore and heating them at high temperatures D Blast furnace process produces molten iron using sintered ore and coke E Torpedo car transfers molten iron to the steelmaking plant F Pretreatment removes impurities from molten iron G Converter removes carbon from molten iron through oxidization by adding oxygen H Ladle furnace removes gases such as oxygen and hydrogen from steel to vary its composition I Continuous casting makes steel slabs through continuous casting J Semifinished products mediumstage products that will be turned into hot rolled coil and steel plate during the next rolling process K Reheating heats slabs to proper rolling temperature L Descaling removes scale from the surface using highpressure water M Roughing mill descales and tenters during intermediate rolling prior to final rolling N Finishing mill rolls final products to proper size O Cutting cuts products to customerspecified dimensions P Heating treatment heats to produce highquality steel plate Q Steel plate R Steel pipe S Cooling uses water to cool rolled products T Downcoiling makes hot rolled coil from hot rolled sheets for storage and delivery U Picking removes scale on hotrolled coil with acid V Cold rolling makes coldrolled coil through hotrolling prodess after picking process W Plating plates coldrolled coil by passing it through a zinc bath X Lightweight parts A Scrap steel steel acquired from used metal products B Electric arc furnace produces molten metal from scrap steel C Ladle furnace controls temperature and components of molten iron in the electric furnace D Continuous casting produces semifinished products by continuously casting molten metal E Semifinished product intermediate stage products easily stored prior to final processing F Reheating heats H Section to required temperature using bunker C oil and natural gas G Rolling produces finished products by adding strength to two rolls H Section makes variousshaped Steel from semifinished products by rolling, modifying, and cooling them I Reinforcing bar produces various sizes of reinforcing bar by rolling semifinished products 8 9

Main products Part 01 Hot Rolled Coil 열연코일 COLD Rolled Coil 냉연코일 Steel Plate 후판 STEEL PIPE 강관 12 Hot Rolled Coil 56 Cold Rolled Coil 114 Steel Plate 188 Steel Pipe 212 Steel Pipe Pile 222 Stainless Steel Welded Pipe & Tube

01. Hot Rolled Coil 열연코일 1) Standard & Applications 제품및용도 용도 Applications 열간압연연강재 Hot Rolled Mild Steel Plate, Sheet 냉연용탄소강재 Reduced Carbon Steel for Cold Rolled Steel 일반구조용 Rolled Steel for General Structure 용접구조용 Rolled Steel for Welded Structure 자동차구조용열간압연강판및강대 Hot Rolled Steel Plate, Sheets and Strip for Automobile Structural Uses 자동차용가공성열간압연고장력강판 Hot Rolled High Strength Steel Sheets with Improved Formability for Automobile Structure Uses 자동차용열간압연고강도강판 Hot Rolled High Strength Steel for Automobile Structure Uses 기계구조용저합금강재 Lowalloyed Steels for Machine Structural Use 탄소공구강재 Carbon Tool Steel 스프링강재 Spring Steel 기계구조용탄소강재 Carbon Steel for Machine Structural Use Standard KS/JIS ASTM/ASME SAE/AISI EN/AS/NZS API HS( 사내 ) SPHC SPHD SPHE SS235, SS275, SS315, SS330, SS400, SS410, SS450*, SS490 SS540*, SS550* A36 SM275A/B/C/D SM355A/B/C/D SM400A/B SM420A/B/C/D SM460B/C* SM490A/B SM490YA/YB SM520B SAPH310 SAPH370 SAPH400 SAPH440 SPFH540 SPFH590 SPFH590Y SNCM220 SCM415 SCM435 A283 A1011 A1018 SA36 CQ3, DQ, DDQ, EDDQ 8165 8617 8620 8622 4135 4137 DD11 DD12 DD13 DD14 S235JR S275JR/0/2 S355JR/0(C)/2 HA250 HA300 HA350 S315MC S355MC S420MC S500MC S650MC* S700MC* 34CrMo4* SK85 (SK5)* W18* C80W1* SPS6* S10C S20C S35C S40C S45C S50C S55C 6145* 6150* SAE1006 SAE1008 SAE1010 SAE1012 SAE1017 SAE1020 SAE1022* SAE1026* SAE1035* 50CrV4* 51CrV4* HS540AS HS590AS HS780AS* 용도 Applications 열교환기용탄소강관 Carbon Steel Boiler and Heat Exchanger Tubes 일반구조용탄소강관 Carbon Steel Tubes for General Structural Purposes 기계구조용탄소강관 Carbon Steel Tubes for Machine Structural Purposes 철탑구조용고장력강관 High Tensile Strength Steel Tubes for Tower Structural Purposes 건축구조용압연강재 Rolled Steel for Building Structure 건축구조용탄소강관 Carbon Steel Tubes for Building Structure 고내후성압연강재 Superior Atmosphere Corrosion Resisting Rolled Steel 선체구조용연강재 Ordinary Strength Hull Structural Steel 선체구조용고장력강재 Higher Strength Hull Structural Steel 고압가스용기용강재 Steel Sheets, Plate and Strip for Gas Cylinders 석유및천연가스수송강관 Hot Rolled Carbon Steel Strip for Petroleum, Natural Gas Line Pipe 석유및천연가스유정강관 Hot Rolled Carbon Steel Strip for Petroleum, Natural Gas Casing & Tubing Pipe Standard KS/JIS ASTM/ASME SAE/AISI EN/AS/NZS API HS( 사내 ) 강관용 HRS1/SPHT1 HRS2/SPHT2 Hot Rolled Carbon Steel Strip HRS3/SPHT3 for Pipe & Tubes HRS4/SPHT4* *: 사전협의필요 Prior discussion is necessary 12 본제품및용도는변경될수있으므로반드시최신및세부용도를확인하시거나담당자와협의바랍니다. 13 STB340 STB410 STB510* STK290, STK400, STK490, STK500, STK540*, STK500, SGT275, SGT355, SGT410*, SGT450* SGT550* STKM11A STKM12B STKM13A/B STKM15A* STKM16A* SHT410 SHT460* STKT590* SN275A/B/C SN355B/C* SN400B SN460B/C* SN490B* SNT275A/E SNT355A/E SNT460A/E* STKN400B STKN490B A178A* A178C* A178D* SPAH A242 SG255 SG295 SG325* SG365* A / B (KR, BV, CCS, DNV, GL, NK, RINA, RS, ABS*, LR*) AH32 / AH36 (KR, BV, CCS, DNV, GL, NK, RINA, RS, ABS*, LR*) A516* API 5L B API X42 API X46 API X52 API X56 API X60 API X65 API X70 API X80* API X42MS* API X52MS* API X60MS* API X65MS* API J55 API K55* HPCD290A HPCD340A HPCD410A HPCD440A HPCD470A HPCD510A* Hot Rolled Coil Cold Rolled Coil Steel Plate Steel Pipe Steel Pipe Pile Stainless Steel Welded Pipe & Tube

01. Hot Rolled Coil 열연코일 2) Available Sizes 공급가능 (1) A 열연 1 30Kg 급 900 1300 < 1540 2 40Kg 급 사전협의필요 (Please consult us in advance) < 1.6 < 1.9 < 12.0 < 16.1 4 무늬강판 (Checkered Coil) 30Kg 급 사전협의필요 (Please consult us in advance) 800 900 1000 1100 1230 1530 00 Pattern A Aiming 1.0mm < 1.2 < 1.6 < 2.75 < 9.0 < 11.8 < 16.0 Hot Rolled Coil Cold Rolled Coil Steel Plate < 1.6 < 1.9 < 2.9 < 12.0 < 16.1 900 1300 < 1540 3 50Kg 급 900 1000 1100 < 1540 < 1.6 < 4.0 < 5.0 < 12.0 < 16.1 40Kg 급 800 900 1000 1100 1230 1530 00 Pattern B Aiming 1.0mm < 1.2 < 2.75 < 2.9 < 11.8 < 16.0 Steel Pipe Steel Pipe Pile Stainless Steel Welded Pipe & Tube 14 15

01. Hot Rolled Coil 열연코일 2) Available Sizes 공급가능 (2) B 열연 < 821 < 1196 < 1331 < 1346 < 1484 < 1531 < 1560 < 1571 < 1622 < 1891 < 1.2 < 2.2 < 2.3 < 2.5 < 2.6 < 2.8 < 3.0 < 3.1 < 3.2 < 5.0 < 16.1 1 극저일반 3 40Kg급 사전협의필요 (Please consult us in advance) < 821 < 1291 < 1531 < 1571 < 1651 < 1711 < 1721 < 1836 < 1891 사전협의필요 (Please consult us in advance) < 1.2 < 1.4 < 2.0 < 2.6 < 3.3 < 3.6 < 4.3 < 4.4 < 5.3 < 16.1 Hot Rolled Coil Cold Rolled Coil Steel Plate 2 30Kg 급 < 821 < 1225 < 1291 < 1531 < 1551 < 1571 < 1651 < 1721 < 1801 < 1891 < 1.2 < 1.3 < 1.4 < 2.0 < 2.2 < 2.6 < 2.8 < 3.1 < 3.6 < 4.3 < 16.1 4 50Kg 급 < 821 < 971 < 1121 < 1181 < 1196 < 1271 < 1346 < 1531 < 1571 < 1891 < 1.2 < 1.6 < 1.8 < 1.9 < 2.1 < 2.3 < 2.6 < 3.0 < 4.3 < 5.3 < 16.1 Steel Pipe Steel Pipe Pile Stainless Steel Welded Pipe & Tube 16 17

01. Hot Rolled Coil 열연코일 2) Available Sizes 공급가능 (2) B 열연 5 60Kg 급 / 70Kg 급이상 < 821 < 971 < 1046 < 1121 < 1196 < 1271 < 1291 < 1346 < 1421 < 1496 < 1571 < 1651 < 1891 사전협의필요 (Please consult us in advance) < 1.2 < 1.7 < 1.8 < 1.9 < 2.0 < 2.1 < 2.3 < 2.4 < 3.1 < 3.4 < 4.5 < 6.0 < 16.1 (3) C 열연 1 극저일반 < 821 < 1346 < 1421 < 1651 < 1721 < 1801 < 1836 < 2001 사전협의필요 (Please consult us in advance) < 1.2 < 1.8 < 1.9 < 2.0 < 2.3 < 2.4 < 2.6 < 2.7 < 25.5 Hot Rolled Coil Cold Rolled Coil Steel Plate 6 특수강 (SPAH) < 821 < 1181 < 1196 < 1271 < 1321 < 1421 < 1571 < 1891 < 1.2 < 1.6 < 2.2 < 2.4 < 3.1 < 3.4 < 4.5 < 16.1 2 30Kg 급 < 821 < 1237 < 1271 < 1484 < 1551 < 1622 < 1721 < 1836 < 1851 < 2001 < 1.2 < 1.3 < 1.4 < 1.5 < 1.6 < 2.3 < 2.5 < 2.6 < 2.7 < 3.0 < 3.1 < 3.6 < 25.5 Steel Pipe Steel Pipe Pile Stainless Steel Welded Pipe & Tube 18 19

01. Hot Rolled Coil 열연코일 2) Available Sizes 공급가능 (3) C 열연 3 40Kg 급 < 821 < 1271 < 1421 사전협의필요 (Please consult us in advance) < 1.2 < 1.3 < 1.4 < 1.6 < 2.5 < 3.0 < 3.6 < 25.5 5 60Kg 급 < 821 < 1237 < 1346 < 1421 사전협의필요 (Please consult us in advance) < 1.2 < 1.6 < 1.8 < 2.2 < 2.3 < 2.7 < 4.4 < 4.5 < 25.5 Hot Rolled Coil Cold Rolled Coil Steel Plate < 1622 < 1801 < 1836 < 2001 < 1571 < 1651 < 1801 < 2001 4 50Kg 급 < 821 < 1237 < 1346 < 1496 < 1571 < 1651 < 1721 < 1801 < 2001 < 1.2 < 1.4 < 1.8 < 2.2 < 2.3 < 2.7 < 3.2 < 4.4 < 4.5 < 25.5 Steel Pipe Steel Pipe Pile Stainless Steel Welded Pipe & Tube 20 21

01. Hot Rolled Coil 열연코일 2) Available Sizes 공급가능 (3) C 열연 6 70Kg 급이상 < 821 < 1196 < 1271 < 1346 < 1496 < 1571 < 1651 < 1721 < 1801 < 1836 < 2001 사전협의필요 (Please consult us in advance) < 1.2 < 1.7 < 2.0 < 2.1 < 2.3 < 2.5 < 2.7 < 3.2 < 4.4 < 4.5 < 25.5 7 특수강 (SPAH) < 821 < 1181 < 1196 < 1271 < 1321 < 1346 < 1571 < 2001 사전협의필요 (Please consult us in advance) < 1.2 < 1.6 < 2.2 < 2.4 < 3.1 < 3.4 < 5.0 < 25.5 Hot Rolled Coil Cold Rolled Coil Steel Plate Steel Pipe Steel Pipe Pile Stainless Steel Welded Pipe & Tube 22 23

01. Hot Rolled Coil 열연코일 3) Chemical Compositions & Mechanical Properties 별성분및재질 (1) Hot Rolled Mild Steel Plate, Sheet 열간압연연강재 JIS G3131 EN 10111 적용 화학성분 (wt%) Chemical Composition, 최대치 C Si Mn P S SPHC 1.2~14.0 0.12 0.60 0.045 0.035 SPHD 1.2~14.0 0.10 0.45 0.035 0.035 SPHE 1.2~6.0 0.08 0.40 0.030 0.030 DD11 1.0~11.0 0.12 0.60 0.045 0.045 DD12 1.0~11.0 0.10 0.45 0.035 0.035 DD13 1.0~11.0 0.08 0.40 0.030 0.030 DD14 1.0~11.0 0.08 0.35 0.025 0.025 (2) Reduced Carbon Steel for Cold Rolled Steel 냉연용탄소강재 성분보증재 재질없음 적용 화학성분 (wt%) Chemical Composition, 최대치 C Si Mn P S CQ3 0.15 0.6 0.05 0.05 DQ 0.12 0.5 0.04 0.04 DDQ 0.08 0.25 0.03 0.03 EDDQ 0.02 0.45 0.02 0.02 항복강도최소값 (N/mm²) 인장강도최소값 (N/mm²) 270 270 270 t < 2, 170~360 2 t, 170~340 t < 2, 170~340 2 t, 170~320 t < 2, 170~330 2 t, 170~310 t < 2, 170~310 2 t, 170~290 440 420 400 380 연신율 (mm,%) 최소값 굽힘성 시험편 Min. 시험편 안쪽반지름 5 호압연방향 5 호압연방향 5 호압연방향 5 호압연수직방향 5 호압연수직방향 5 호압연수직방향 5 호압연수직방향 < 1.6 < 2.0 < 2.5 < 3.2 < 4.0 4.0 < 1.6 < 2.0 < 2.5 < 3.2 < 4.0 4.0 < 1.6 < 2.0 < 2.5 < 3.2 < 4.0 4.0 1.0 t < 1.5 1.5 t < 2.0 2.0 t < 3.0 3.0 t < 11.0 1.0 t < 1.5 1.5 t < 2.0 2.0 t < 3.0 3.0 t < 11.0 1.0 t < 1.5 1.5 t < 2.0 2.0 t < 3.0 3.0 t < 11.0 1.0 t < 1.5 1.5 t < 2.0 2.0 t < 3.0 3.0 t < 11.0 27 29 29 29 31 31 30 32 33 35 37 39 32 34 35 37 39 41 22 23 24 28 24 25 26 30 27 28 29 33 30 31 32 36 3 호압연방향 3 호압연방향 3 호압연방향 < 3.2 3.2 밀착의 0.5배 밀착 밀착 밀착 비고 밀착재질보증 6 개월 밀착재질보증 6 개월 밀착재질보증 6 개월 Hot Rolled Coil Cold Rolled Coil Steel Plate Steel Pipe Steel Pipe Pile Stainless Steel Welded Pipe & Tube 24 25

01. Hot Rolled Coil 열연코일 3) Chemical Compositions & Mechanical Properties 별성분및재질 (3) Rolled Steel for General Structure 일반구조용압연강재 KS D3503 적용 화학성분 (wt%) Chemical Composition, 최대치 C Si Mn P S N 비고 SS235 0.25 0.45 1.40 0.050 0.050 SS275 0.25 0.45 1.40 0.050 0.050 SS315 0.28 0.50 1.50 0.050 0.050 SS410 40 0.30 0.55 1.60 0.040 0.040 필요에 따라 합금첨가 가능 적용 40 40 40 40 항복강도최소값 (N/mm²) 235 225 275 265 315 305 410 400 인장강도최소값 (N/mm²) 330~450 410~550 490~630 540 연신율 (mm,%) 최소값 굽힘성 시험편 Min. 시험편안쪽반지름 5 호 5 호 5 호 5 호 5 40 5 40 5 40 5 40 26 21 26 21 18 21 19 16 19 16 14 17 1 호의 0.5 배 SS235 1 호의 1.5 배 SS275 1 호의 2.0 배 SS315 1 호의 2.0 배 SS410 Hot Rolled Coil Cold Rolled Coil Steel Plate SS450 40 0.30 0.55 1.60 0.040 0.040 40 450 440 590 5 호 5 40 14 12 15 1 호의 2.0 배 SS450 JIS G3101 ASTM A36 SS550 40 0.30 0.55 1.80 0.040 0.040 SS330 0.050 0.050 SS400 0.050 0.050 SS490 0.050 0.050 SS540* 0.30 1.60 0.040 0.040 A36 < 20 25 0.25 0.40 0.80~1.20 필요에 따라 합금첨가 가능 0.040 0.050 ASME SA36 0.10 0.45 0.035 0.035 ASTM A283 A283 C 0.24 0.40 0.90 0.035 0.040 *: 사전협의필요 Prior discussion is necessary 40 25 25 25 25 550 540 205 195 245 235 285 275 400 390 690 330~430 400~510 490~610 540 250 400~550 250 400~550 205 380~515 5 호 5호 1A호 1A호압연방향 5호 1A호 1A호압연방향 5호 1A호 1A호압연방향 5호 1A호 1A호압연방향 5 호압연수직방향 5 호압연수직방향 5 호압연수직방향 5 40 5 25 5 25 5 25 5 25 13 11 14 26 21 26 21 17 21 19 15 19 16 13 17 1 호의 2.0 배 SS550 1 호의 0.5 배 SS330 1 호의 1.5 배 SS400 1 호의 2.0 배 SS490 1 호의 2.0 배 SS540* 23 A36 23 SA36 25 A283 C Steel Pipe Steel Pipe Pile Stainless Steel Welded Pipe & Tube 26 27

01. Hot Rolled Coil 열연코일 3) Chemical Compositions & Mechanical Properties 별성분및재질 (3) Rolled Steel for General Structure 일반구조용압연강재 ASTM A1011 A1011CS Type B A1011SS Gr.33 A1011SS Gr.40 적용 화학성분 (wt%) Chemical Composition, 최대치 C Si Mn P S N 비고 < 6 0.02~0.15 0.60 0.030 0.035 < 6 0.25 0.90 0.035 0.040 < 6 0.25 0.90 0.035 0.040 Ni 0.20 Cr 0.15 Mo 0.06 V 0.008 Nb 0.008 Ti 0.025 적용 항복강도최소값 (N/mm²) 인장강도최소값 (N/mm²) 205~340 230 360 275 380 연신율 (mm,%) 최소값 굽힘성 시험편 Min. 시험편안쪽반지름 5 호압연방향 5 호압연방향 5 호압연방향 25 1.6 1.6 t < 2.5 2.5 t < 6 1.6 1.6 t < 2.5 2.5 t < 6 18 22 23 15 20 21 굽힘각 90 굽힘각 90 굽힘각 90 의 1 배 의 2 배 A1011CS Type B A1011SS Gr.33 A1011SS Gr.40 Hot Rolled Coil Cold Rolled Coil Steel Plate ASTM A1018 A1011HS Gr.50 Class1 A1011HS Gr.55 Class1 A1018SS Gr.36 Type2 A1018SS Gr.40 A1018HS Gr.50 Class1 < 6 0.23 1.35 0.040 0.040 < 6 0.25 1.35 0.040 0.040 6 t 25 0.25 0.035 0.040 6 t 25 0.25 1.50 0.035 0.040 6 t 25 0.23 1.50 0.040 0.040 최대값 Ni 0.20 Cr 0.15 Mo 0.06 최소값 V 0.005 Nb 0.005 Ti 0.005 V 0.008 Nb 0.008 Ti 0.025 N 0.014 V 0.008 Nb 0.008 Ti 0.025 N 0.014 최소치 V 0.005 Nb 0.005 Ti 0.005 340 450 380 480 250 400~550 275 380 340 450 5 호압연방향 5 호압연방향 5 호 압연수직방향 5 호 압연수직방향 5 호 압연수직방향 < 2.5 2.5 < 2.5 2.5 20 22 18 20 21 18 19 14 20 16 굽힘각 90 굽힘각 90 굽힘각 90 굽힘각 90 굽힘각 90 의 2배의 2배의 2배의 2배의 2배 A1011HS Gr.50 Class1 A1011HS Gr.55 Class1 A1018SS Gr.36 Type2 A1018SS Gr.40 A1018HS Gr.50 Class1 Steel Pipe Steel Pipe Pile Stainless Steel Welded Pipe & Tube 28 29

01. Hot Rolled Coil 열연코일 3) Chemical Compositions & Mechanical Properties 별성분및재질 (3) Rolled Steel for General Structure 일반구조용압연강재 적용 화학성분 (wt%) Chemical Composition, 최대치 C Si Mn P S N Cu S235JR 0.17 1.40 0.035 0.035 0.012 0.55 S275JR 0.21 1.50 0.035 0.035 0.012 0.55 25 25 항복강도최소값 (N/mm²) 235 225 275 265 인장강도최소값 (N/mm²) 360~510 < 3 3 t 25 430~580 410~560 연신율 (mm,%) 최소값 시험편 Min. L0=80mm 압연수직방향 1 1 < t 1.5 1.5 < t 2 2 < t 2.5 2.5 < t < 3 15 16 17 18 19 L0=5.62 S0 압연수직방향 3 t 25 24 L0=80mm 압연수직방향 1 1 < t 1.5 1.5 < t 2 2 < t 2.5 2.5 < t < 3 13 14 15 16 17 충격 (J) 최소값 20, 27 ( 고객사협의사항 ) 20, 27 ( 고객사협의사항 ) Hot Rolled Coil Cold Rolled Coil Steel Plate L0=5.62 S0 압연수직방향 3 t 25 21 S275J0 0.18 1.50 0.030 0.030 0.012 0.55 25 275 265 < 3 3 t 25 430~580 410~560 L0=80mm 압연수직방향 1 1 < t 1.5 1.5 < t 2 2 < t 2.5 2.5 < t < 3 13 14 15 16 17 0, 27 EN10025 S275J2 0.18 1.50 0.025 0.025 0.55 S355JR 0.24 0.55 1.60 0.035 0.035 0.012 0.55 S355J0 0.20 0.55 1.60 0.030 0.030 0.012 0.55 S355J2 0.20 0.55 1.60 0.025 0.025 0.55 25 25 25 25 275 265 355 345 355 345 355 345 < 3 3 t 25 < 3 3 t 25 < 3 3 t 25 < 3 3 t 25 430~580 410~560 510~680 470~630 510~680 470~630 510~680 470~630 L0=5.62 S0 압연수직방향 3 t 25 21 L0=80mm 압연수직방향 1 1 < t 1.5 1.5 < t 2 2 < t 2.5 2.5 < t < 3 13 14 15 16 17 L0=5.62 S0 압연수직방향 3 t 25 21 L0=80mm 압연수직방향 1 1 < t 1.5 1.5 < t 2 2 < t 2.5 2.5 < t < 3 12 13 14 15 16 L0=5.62 S0 압연수직방향 3 t 25 20 L0=80mm 압연수직방향 1 1 < t 1.5 1.5 < t 2 2 < t 2.5 2.5 < t < 3 12 13 14 15 16 L0=5.62 S0 압연수직방향 3 t 25 20 L0=80mm 압연수직방향 1 1 < t 1.5 1.5 < t 2 2 < t 2.5 2.5 < t < 3 12 13 14 15 16 L0=5.62 S0 압연수직방향 3 t 25 20 20, 27 20, 27 ( 고객사협의사항 ) 0, 27 20, 27 Steel Pipe Steel Pipe Pile Stainless Steel Welded Pipe & Tube 30 31

01. Hot Rolled Coil 열연코일 3) Chemical Compositions & Mechanical Properties 별성분및재질 (4) Rolled Steel for Welded Structure 용접구조용압연강재 적용 화학성분 (wt%) Chemical Composition, 최대치 C Si Mn P S 비고 SM400A 0.23 2.5 C 이상 0.035 0.035 SM400B 0.20 0.35 0.6~1.50 0.035 0.035 SM490A 0.20 0.55 1.65 0.035 0.035 필요에따라 합금첨가가능 필요에따라 합금첨가가능 필요에따라 합금첨가가능 적용 16~25 16~25 16~25 항복강도최소값 (N/mm²) 245 235 245 235 325 315 인장강도최소값 (N/mm²) 400~510 400~510 490~610 연신율 (mm,%) 최소값 시험편 Min. 5 호 압연방향 5 호 압연방향 5 호 압연방향 5 25 5 25 5 25 23 18 22 23 18 22 22 17 21 충격 (J) 최소값 0, 27J Hot Rolled Coil Cold Rolled Coil Steel Plate JIS G3106 SM490B 0.18 0.55 1.65 0.035 0.035 SM490C 0.18 0.55 1.65 0.035 0.035 SM490YA 0.20 0.55 1.65 0.035 0.035 SM490YB 0.20 0.55 1.65 0.035 0.035 SM520B 0.20 0.55 1.65 0.035 0.035 필요에따라합금첨가가능필요에따라합금첨가가능필요에따라합금첨가가능필요에따라합금첨가가능필요에따라합금첨가가능 16~25 16~25 16~25 16~25 16~25 325 315 325 315 365 355 365 355 365 355 490~610 490~610 490~610 490~610 520~640 5 호 압연방향 5 호 압연방향 5 호 압연방향 5 호 압연방향 5 호 압연방향 5 25 5 25 5 25 5 25 5 25 22 17 21 22 17 21 19 15 19 19 15 19 19 15 19 0, 27J 0, 27J 0, 27J 0, 27J Steel Pipe Steel Pipe Pile Stainless Steel Welded Pipe & Tube 32 33

01. Hot Rolled Coil 열연코일 3) Chemical Compositions & Mechanical Properties 별성분및재질 (5) Hot Rolled Carbon Steel Strip for Pipe & Tubes 강관용열간압연탄소강강재 JIS G3132 적용 화학성분 (wt%) Chemical Composition, 최대치 C Si Mn P S SPHT1 1.2~13.0 0.10 0.35 0.50 0.040 0.040 SPHT2 1.2~13.0 0.18 0.35 0.60 0.040 0.040 SPHT3 1.6~13.0 0.25 0.35 0.30~0.90 0.040 0.040 인장강도최소값 (N/mm²) 270 340 410 연신율 (mm,%) 최소값 굽힘성 시험편 Min. 안쪽반지름 5 호압연방향 5 호압연방향 5 호압연방향 1.6 3.0 6.0 13.0 1.6 3.0 6.0 13.0 1.6 3.0 6.0 13.0 30 32 35 37 25 27 30 32 20 22 25 27 3.0 13.0 3.0 13.0 3.0 13.0 밀착의 0.5배 의 1.0배의 1.5배 의 1.5배의 2.0배 비고 굽힘시험편 : 3호압연방향 굽힘시험편 : 3호압연방향 굽힘시험편 : 3호압연방향 SPHT1 SPHT2 SPHT3 Hot Rolled Coil Cold Rolled Coil Steel Plate SPHT4* 1.6~13.0 0.30 0.35 0.30~1.00 0.040 0.040 490 5 호압연방향 1.6 3.0 6.0 13.0 15 18 20 22 3.0 13.0 의 1.5배의 2.0배 굽힘시험편 : 3호압연방향 SPHT4* (6) Rolled Steel for Building Structure 건축구조용압연강재 JIS G3136 적용 화학성분 (wt%) Chemical Composition, 최대치 C Si Mn P S Ceq Pcm SN400B 6~25 0.20 0.35 0.60~1.40 0.030 0.015 0.36 0.26 SN490B* 6~25 0.18 0.55 1.60 0.030 0.015 0.44 0.29 *: 사전협의필요 Prior discussion is necessary 적용 6 t < 12 12 t < 25 6 t < 12 12 t < 25 항복강도최소값 (N/mm²) 235 235~355 325 325~445 인장강도최소값 (N/mm²) 400~510 490~610 연신율 (mm,%) 최소값 시험편 Min. 압연방향 압연방향 6 t < 16 16 t < 25 6 t < 16 16 t < 25 18 22 17 21 충격 (J) 최소값 0, 27 0, 27 항복비 (%) t < 12, t 25, 80 SN400B SN490B* Steel Pipe Steel Pipe Pile Stainless Steel Welded Pipe & Tube 34 35

01. Hot Rolled Coil 열연코일 3) Chemical Compositions & Mechanical Properties 별성분및재질 (7) Superior Atmosphere Corrosion Resisting Rolled Steel 고내후성압연강재 JIS G3125 ASTM A242 적용 SPAH.0 0.12 0.20~0.75 0.60 화학성분 (wt%) Chemical Composition, 최대치 C Si Mn P S 기타 0.070 ~0.150 0.035 Cu : 0.25~0.55 Cr : 0.30~1.25 Ni : 0.65 이하 A242 0.15 1.00 0.150 0.050 Cu : 0.20 이상 (8) Hot Rolled Steel Plate, Sheets and Strip for Automobile Structural Uses 자동차구조용열간압연강판및강대 JIS G3113 EN 10149 적용 화학성분 (wt%) Chemical Composition, 최대치 C Si Mn P S AI 비고 SAPH310 1.6~14 0.040 0.040 SAPH370 1.6~14 0.040 0.040 SAPH400 1.6~14 0.040 0.040 SAPH440 1.6~14 0.040 0.040 S355MC 0.12 0.50 1.5 0.025 0.02 0.015 Nb 0.09 V 0.20 Ti 0.15 적용 < 8 8 < 8 8 < 6 6 < 6 6 t < 8 8 적용 항복강도최소값 (N/mm²) 인장강도최소값 (N/mm²) 355 490 20 25 345 315 480 460 연신율 (mm,%) 최소값 굽힘성 시험편 Min. 굽힘각도안쪽반지름 5 호 압연방향 5 호 압연방향 6.0 6.0 < 22 15 21 18 180 의 0.5배의 1.5배 비고 굽힘시험편 : 1호압연방향 (8) Hot Rolled Steel Plate, Sheets and Strip for Automobile Structural Uses 자동차구조용열간압연강판및강대 항복강도최소값 (N/mm²) 185 175 225 215 255 235 305 295 275 인장강도최소값 (N/mm²) 310 370 400 440 355 430~550 연신율 (mm,%) 최소값굽힘성충격 (J) 시험편 Min. 안쪽반지름최소값 5 호압연방향 5호압연방향 5 호압연방향 5 호압연방향 5 호압연방향 < 2.0 < 2.5 < 3.15 < 4.0 < 6.3 6.3 < 2.0 < 2.5 < 3.15 < 4.0 < 6.3 6.3 < 2.0 < 2.5 < 3.15 < 4.0 < 6.3 6.3 < 2.0 < 2.5 < 3.15 < 4.0 < 6.3 6.3 < 3.00 3.00 33 34 36 38 40 41 32 33 35 36 37 38 31 32 34 35 36 37 29 30 32 33 34 35 20 24 < 2.0 14.0 < 2.0 14.0 < 2.0 14.0 < 2.0 14.0 굽힘각도 180 밀착의 1.0배 의 0.5배의 1.0배 의 1.0배의 1.0배 의 1.0배의 1.5배 의 0.5 배 20 27 이상 비고 굴곡시험편 : 3호압연수직방향 시험편수 : 동일용강 1개최대가최소의 2배이내 50톤초과 2개 인장시험은 L방향굽힘시험은 C방향 8mm 이상에서는항복강도 20N/mm² 하향 Hot Rolled Coil Cold Rolled Coil Steel Plate Steel Pipe Steel Pipe Pile Stainless Steel Welded Pipe & Tube 36 37

01. Hot Rolled Coil 열연코일 3) Chemical Compositions & Mechanical Properties 별성분및재질 (9) Hot Rolled High Strength Steel Sheets with Improved Formability for Automobile Structure Uses 자동차용가공성열연고장력강재 JIS G3134 적용 화학성분 (wt%) Chemical Composition, 최대치 C Si Mn P S AI 비고 항복강도최소값 (N/mm²) SPFH540 1.6~6.0 355 SPFH590 1.6~6.0 420 인장강도최소값 (N/mm²) 540 590 연신율 (mm,%) 최소값굽힘성충격 (J) 시험편 Min. 안쪽반지름최소값 5 호압연수직방향 5 호압연수직방향 < 2.0 < 2.5 < 3.25 6.0 < 2.0 < 2.5 < 3.25 6.0 21 22 23 24 19 20 21 22 < 3.25 6.0 < 3.25 6.0 의 1.0배의 1.5배 의 1.5배의 1.5배 비고 Hot Rolled Coil Cold Rolled Coil Steel Plate SPFH590Y 2.0~4.0 325 590 5 호압연수직방향 < 2.0 < 2.5 < 3.25 4.0 22 23 24 < 3.25 4.0 의 1.5배의 1.5배 EN 10149 S420MC 1.5~20.0 0.12 0.12 0.50 0.03 1.60 1.5 0.025 0.025 0.015 0.012 S500MC 1.5~16.0 0.12 0.50 1.70 0.025 0.015 S650MC* 1.5~16.0 0.12 0.10 2.10 0.025 0.015 S700MC* 1.5~16.0 0.12 0.10 2.10 0.025 0.015 *: 사전협의필요 Prior discussion is necessary 0.015 이상 0.015 이상 0.015 이상 0.015 이상 0.015 이상 Nb 0.09 V 0.20 Ti 0.15 Nb 0.09 V 0.20 Ti 0.15 ( 도금용 ) Nb 0.09 V 0.20 Ti 0.15 Nb 0.09 V 0.20 Ti 0.22 Mo 0.5 B 0.005 Nb 0.09 V 0.20 Ti 0.22 Mo 0.5 B 0.005 420 500 650 700 480~620 550~700 700~880 750~950 Lo=80mm Lo=5.65 So 압연방향 Lo=80mm Lo=5.65 So 압연방향 Lo=80mm Lo=5.65 So 압연방향 Lo=80mm Lo=5.65 So 압연방향 < 3.0 20.0 < 3.0 20.0 < 3.0 20.0 < 3.0 20.0 16 19 12 14 12 14 10 12 굽힘각도 180 압연수직방향 굽힘각도 180 압연수직방향 굽힘각도 180 압연수직방향 굽힘각도 180 압연수직방향 의 0.5배의 1.0배의 2.0배의 2.0배 12 t 압연수직방향 20, 40 12 t 압연수직방향 20, 40 12 t 압연수직방향 20, 40 12 t 압연수직방향 20, 40 8mm 이상에서는항복강도 20N/mm² 하향 Steel Pipe Steel Pipe Pile Stainless Steel Welded Pipe & Tube 38 39

01. Hot Rolled Coil 열연코일 3) Chemical Compositions & Mechanical Properties 별성분및재질 (10) Steel Sheets, Plate and Strip for Gas Cylinders 고압가스용기용강재 JIS G3116 적용 화학성분 (wt%) Chemical Composition, 최대치 C Si Mn P S SG255 1.6~6.0 0.20 0.30 이상 0.030 0.030 SG295 1.6~6.0 0.20 0.35 1.00 0.030 0.030 SG325* 1.6~6.0 0.20 0.55 1.50 0.030 0.030 항복강도최소값 (N/mm²) 인장강도최소값 (N/mm²) 255 400 295 440 325 490 연신율 (mm,%) 최소값 굽힘성 시험편 Min. 굽힘각도안쪽반지름 5 호압연방향 5 호압연방향 5 호압연방향 28 180 의 1.0 배 26 180 의 1.5 배 22 180 의 1.5 배 비고굴곡시험편 : 3호압연방향시험편수 : 동일용강 1개 25톤초과 2개 Hot Rolled Coil Cold Rolled Coil Steel Plate SG365* 1.6~6.0 0.20 0.55 1.50 0.030 0.030 365 540 5 호압연방향 20 180 의 1.5 배 ASTM A516 ASTM A572 60* 70* 12.5 25 12.5 25 0.21 0.23 0.27 0.28 0.15~0.40 0.60~0.90 0.85~1.20 0.025 0.025 0.15~0.40 0.85~1.20 0.025 0.025 50* 0.23 0.40 1.35 0.040 0.050 *: 사전협의필요 Prior discussion is necessary 220 415~550 260 485~620 345 450 5 호 압연수직방향 5 호 압연수직방향 5 호 압연수직방향 25 21 21 17 21 18 Steel Pipe Steel Pipe Pile Stainless Steel Welded Pipe & Tube 40 41

01. Hot Rolled Coil 열연코일 JIS G4051 화학성분 (wt%) Chemical Composition, 최대치 C Si Mn P S 기타비고 S10C 0.08~0.13 0.15~0.35 0.30~0.60 0.030 0.035 Cr: 0.20 S20C 0.18~0.23 0.15~0.35 0.30~0.60 0.030 0.035 Cr: 0.20 S35C 0.32~0.38 0.15~0.35 0.60~0.90 0.030 0.035 Cr: 0.20 S40C 0.37~0.43 0.15~0.35 0.60~0.90 0.030 0.035 Cr: 0.20 S45C 0.42~0.48 0.15~0.35 0.60~0.90 0.030 0.035 Cr: 0.20 S50C 0.47~0.53 0.15~0.35 0.60~0.90 0.030 0.035 Cr: 0.20 S55C 0.52~0.58 0.15~0.35 0.60~0.90 0.030 0.035 Cr: 0.20 1006 0.08 0.45 0.040 0.050 3) Chemical Compositions & Mechanical Properties 별성분및재질 (11) Carbon Steel for Machine Structural Use 기계구조용탄소강재 (12) Carbon Tool Steel 탄소공구강재 JIS G4401 화학성분 (wt%) Chemical Composition, 최대치 C Si Mn P S 기타비고 SK85 (SK5)* 0.80~0.90 0.10~0.35 0.10~0.50 0.030 0.030 (13) Lowalloyed Steels for Machine Structural Use 기계구조용저합금강재 화학성분 (wt%) Chemical Composition, 최대치 C Si Mn P S Cr Ni Mo Hot Rolled Coil Cold Rolled Coil Steel Plate 1008 0.1 0.5 0.040 0.050 1010 0.08~0.13 0.30~0.60 0.040 0.050 Si 지정범위 SCM415 0.13~0.18 0.15~0.35 0.60~0.90 0.030 0.030 0.90~1.20 0.25 0.15~0.30 SAE 1012 0.10~0.15 0.30~0.60 0.040 0.050 1015 0.12~0.18 0.30~0.60 0.040 0.050 1016 0.12~0.18 0.60~0.90 0.040 0.050 1017 0.14~0.20 0.30~0.60 0.040 0.050 1018 0.14~0.20 0.60~0.90 0.040 0.050 1020 0.17~0.23 0.30~0.60 0.040 0.050 1022 0.17~0.23 0.70~1.00 0.040 0.050 1026 0.22~0.28 0.60~0.90 0.040 0.050 1040 0.36~0.44 0.60~0.90 0.040 0.050 1045 0.42~0.50 0.60~0.90 0.040 0.050 1060 0.55~0.66 0.60~0.90 0.040 0.050 SAE1025 이하 0.1 이하 0.10~0.25 0.15~0.35 SAE1026 ~1095 0.10~0.25 0.15~0.35 Cu는첨가가능하나일반적으로 0.20% 이상 JIS G4053 SCM435 0.33~0.38 0.15~0.35 0.60~0.90 0.030 0.030 0.90~1.20 0.25 0.15~0.30 SNCM220 0.17~0.23 0.15~0.35 0.60~0.90 0.030 0.030 0.40~0.60 0.40~0.70 0.15~0.25 (14) Spring Steel 스프링강재 EN 10089 50CrV4* 51CrV4* *: 사전협의필요 Prior discussion is necessary 성분보증재 재질없음 화학성분 (wt%) Chemical Composition, 최대치 C Si Mn P S Cr Ni Mo V 0.47~0.55 0.40 0.70~1.10 0.035 0.035 0.90~1.20 0.1~0.2 Steel Pipe Steel Pipe Pile Stainless Steel Welded Pipe & Tube 42 43

01. Hot Rolled Coil 열연코일 3) Chemical Compositions & Mechanical Properties 별성분및재질 (15) Carbon Steel Boiler and Heat Exchanger Tubes 열교환기용탄소강관 JIS G3461 ASTM A178 적용 화학성분 (wt%) Chemical Composition, 최대치 C Si Mn P S 비고 STB340 1.2 t 12.5 0.18 0.35 0.30~0.60 0.035 0.035 STB410 1.2 t 12.5 0.32 0.35 0.30~0.80 0.035 0.035 STB510* 1.2 t 12.5 0.25 0.35 1.00~1.50 0.035 0.035 주문자요구시 Si 0.10~0.35 관리주문자요구시 Si 0.10~0.35 관리주문자요구시 Si 0.10~0.35 관리 A178A* 0.06~0.18 0.27~0.63 0.035 0.035 A178C* 0.35 0.80 0.035 0.035 A178D* 0.27 0.10 이상 1.00~1.50 0.030 0.015 항복강도최소값 (N/mm²) 인장강도최소값 (N/mm²) 175 340 255 410 295 510 180 325 255 415 275 485 연신율 (mm,%) 최소값 시험편 Min. 11 호압연방향 11 호압연방향 11 호압연방향 5 호압연방향 5 호압연방향 5 호압연방향 D 10mm 10 D 20mm 20mm D D 10mm 10 D 20mm 20mm D D 10mm 10 D 20mm 20mm D 27 30 35 17 20 25 17 20 25 수압시험 P=2st/D (s : 항복하한값의 60% 또는 100) P=2st/D (s : 항복하한값의 60% 또는 100) P=2st/D (s : 항복하한값의 60% 또는 100) 비파괴검사 초음파 UD 와류 EY 초음파 UD 와류 EY 초음파 UD 와류 EY 비고 수압기준초과 요구시당사자협정에따름 인장강도상한 지정가능 ( 하한 +12kgf/mm²) 35 1.6 2.4 3.2 4.0 4.8 5.6 6.4 7.2 8.0 18 20 21 22 24 26 27 29 30 연신율계산식 E = 1.87t+15.00 Hot Rolled Coil Cold Rolled Coil Steel Plate (16) Carbon Steel Tubes for General Structural Purposes 일반구조용탄소강관 KS D3566 JIS G3444 화학성분 (wt%) Chemical Composition, 최대치 C Si Mn P S SGT275 0.25 0.040 0.040 SGT355 0.24 0.40 1.50 0.040 0.040 SGT410 0.28 0.40 1.60 0.040 0.040 SGT450 0.30 0.40 2.00 0.040 0.040 SGT550 0.30 0.40 2.00 0.040 0.040 SGT400 0.25 0.040 0.040 SGT490 0.18 0.55 1.65 0.035 0.035 SGT500 0.24 0.35 0.3~1.3 0.040 0.040 SGT540* 0.23 0.55 1.50 0.040 0.040 *: 사전협의필요 Prior discussion is necessary 항복강도최소값 (N/mm²) 인장강도최소값 (N/mm²) 275 410 355 500 410 540 450 590 550 690 235 400 315 490 355 500 390 540 연신율 (mm,%) 최소값 굽힘성 시험편 Min. 굽힘각도안쪽반지름 5 호압연수직방향 5 호압연수직방향 5 호압연수직방향 5 호압연수직방향 5 호압연수직방향 5 호압연수직방향 5 호압연수직방향 5 호압연수직방향 5 호압연수직방향 18 90 6D 16 90 6D 16 90 6D 16 90 6D 16 90 6D 18 90 6D 18 90 6D 10 90 8D 16 90 6D 비고 SGT410 12.5mm초과시 SGT450, SGT550 22mm초과시화학성분은협상에의해변경가능 D 는관의바깥지름 STK540 12.7mm 초과시화학성분은협정에의해변경가능 D 는관의바깥지름 Steel Pipe Steel Pipe Pile Stainless Steel Welded Pipe & Tube 44 45

01. Hot Rolled Coil 열연코일 3) Chemical Compositions & Mechanical Properties 별성분및재질 (17) Carbon Steel Tubes for Machine Structural Purposes 기계구조용탄소강관 JIS G3445 화학성분 (wt%) Chemical Composition, 최대치 C Si Mn P S STKM11A 0.12 0.35 0.60 0.040 0.040 STKM12B 0.20 0.35 0.60 0.040 0.040 STKM13A 0.25 0.35 0.30~0.90 0.040 0.040 STKM13B 0.25 0.35 0.30~0.90 0.040 0.040 항복강도최소값 (N/mm²) 인장강도최소값 (N/mm²) 290 275 390 215 370 305 440 연신율 (mm,%) 최소값 굽힘성 시험편 Min. 굽힘각도안쪽반지름 5 호압연수직방향 5 호압연수직방향 5 호압연수직방향 5 호압연수직방향 30 180 4D 20 90 6D 25 90 6D 15 90 6D 비고 A : 열간가공 C : 냉간가공 외경지름 50mm 이하굽힘시험 외경지름 50mm 이상편평시험 D 는관의바깥지름 Hot Rolled Coil Cold Rolled Coil Steel Plate STKM15A* 0.25~0.35 0.35 0.30~1.00 0.040 0.040 275 470 5 호압연수직방향 17 90 6D STKM16A* 0.35~0.45 0.40 0.40~1.00 0.040 0.040 (18) High Tensile Strength Steel Tubes for Tower Structural Purposes 철탑구조용고장력강관 KS D3777 JIS G3474 적용 화학성분 (wt%) Chemical Composition, 최대치 C Si Mn P S 기타 SHT410 0.23 0.55 1.50 0.040 0.040 SHT460 25 0.12 0.40 2.00 0.030 0.030 STKT590* 25 0.12 0.40 2.00 0.030 0.030 *: 사전협의필요 Prior discussion is necessary Ceq 0.40 Nb+V 0.15 Ceq. 0.40 Nb+V 0.15 Ceq. 0.40 325 510 항복강도최소값 (N/mm²) 인장강도최소값 (N/mm²) 410 550 460 590~740 440 590~740 5 호압연수직방향 15 90 8D 연신율 (mm,%) 최소값 시험편 5 호압연수직방향 5 호압연수직방향 5 호압연수직방향 Min. 충격 (J) 최소값 비고 16 필요시합금첨가가능 16 16 5, 47 5, 47 (SHT410 : 12.5t 초과, SHT460 : 22.0t 초과 ) 연신율 : t 8mm 의경우, 1mm 감소마다연신율 1.5% 감소 필요시합금첨가가능 (STKT590 : 22.0t 초과 ) 연신율 : 8mm 의경우, 1mm 감소마다연신율 1.5% 감소 Steel Pipe Steel Pipe Pile Stainless Steel Welded Pipe & Tube 46 47

01. Hot Rolled Coil 열연코일 3) Chemical Compositions & Mechanical Properties 별성분및재질 (19) Carbon Steel Tubes for Building Structure 건축구조용탄소강관 JIS G3475 화학성분 (wt%) Chemical Composition, 최대치 C Si Mn P S 기타비고 STKN400B 0.25 0.35 1.40 0.030 0.030 N 60ppm STKN490B 0.22 0.55 1.60 0.030 0.030 N 60ppm Ceq 0.36 Pcm 0.26 Ceq 0.44 Pcm 0.29 적용 < 12 25 < 12 25 항복강도최소값 (N/mm²) 235 235~385 325 325~475 인장강도최소값 (N/mm²) 400~540 490~640 항복비 (%) 80 80 연신율 (mm,%) 최소값 시험편 11,12 호압연방향 11,12 호압연방향 Min. 23 23 충격 (J) 최소값 0, 27 (12t 이상만실시 ) 비고 Ceq=C+Mn/6+Si/24+Ni/40 +Cr/6+Mo/4+V/14 Pcm=C+Mn/20+Si/30+Cu/20 +Ni/60+Cr/20+Mo/15+V/10+B Hot Rolled Coil Cold Rolled Coil Steel Plate (20) Ordinary Strength Hull Structural Steel 선체구조용연강재 적용 화학성분 (wt%) Chemical Composition, 최대치 C Si Mn P S Ceq 비고 항복강도최소값 (N/mm²) 인장강도최소값 (N/mm²) 연신율 (mm,%) 최소값 시험편 Min. 충격 (J) 최소값 비고 Class Rule A 0.21 0.50 2.5 C 0.035 0.035 0.4 B 0.21 0.35 0.80 0.035 0.035 0.4 AH32 < 12.5 25 0.18 0.10~0.50 0.7~1.60 0.9~1.60 0.035 0.035 0.44 AH36 0.18 0.10~0.50 0.7~1.60 0.035 0.035 0.44 Nb 0.02~0.05 V 0.05~0.10 Ti 0.02 Cu 0.35 Cr 0.20 Ni 0.40 Mo 0.08 235 400~520 235 400~520 315 440~570 355 490~630 5 호압연수직방향 5 호압연수직방향 5 호압연수직방향 5 호압연수직방향 24 24 22 22 L 27 T 20 L 31 T 22 L 34 T 24 충격시험은 O Steel Pipe Steel Pipe Pile Stainless Steel Welded Pipe & Tube 48 49

01. Hot Rolled Coil 열연코일 3) Chemical Compositions & Mechanical Properties 별성분및재질 (21) Hot Rolled Carbon Steel Strip for Petroleum, Natural Gas Casing & Tubing Pipe API 5CT 석유및천연가스유정강관 (API 5CT) 화학성분 (wt%) Chemical Composition, 최대치 C Si Mn P S J55 0.030 0.030 K55* 0.030 0.030 (22) Hot Rolled Carbon Steel Strip for Petroleum and Natural Gas Line Pipe 석유및천연가스수송강관 (API 5L) 항복강도 (N/mm²) 인장강도 Min. (N/mm²) 하중하의총연신율 (%) 379~552 517 0.5 J55 379~552 655 0.5 *K55 (22) Hot Rolled Carbon Steel Strip for Petroleum, Natural Gas Line Pipe 석유및천연가스수송강관 (API 5L) Hot Rolled Coil Cold Rolled Coil Steel Plate 화학성분 (wt%) Chemical Composition, 최대치 C Si Mn P S 기타비고 항복강도 R t0.5 (N/mm²) 인장강도 R m (N/mm²) YR Max. R t0.5 /R m 연신율 A f 최소치 (%) Bend TEST 비고 API 5L B X42 X46 0.22 0.22 0.22 0.45 0.45 0.45 1.20 1.30 1.30 0.025 0.025 0.025 0.015 0.015 0.015 V 0.05 Nb 0.05 Ti 0.04 Cu 0.50 Ni 0.30 Cr 0.30 Mo 0.15 X52 0.22 0.45 1.40 0.025 0.015 X56 0.22 0.45 1.40 0.025 0.015 X60 0.12 0.45 1.60 0.025 0.015 X65 0.12 0.45 1.60 0.025 0.015 X70 0.12 0.45 1.70 0.025 0.015 X80* 0.12 0.45 1.85 0.025 0.015 *: 사전협의필요 Prior discussion is necessary V+Nb+Ti 0.15 Cu 0.50 Ni 0.30 Cr 0.30 Mo 0.15 V+Nb+Ti 0.15 Cu 0.50 Ni 0.50 Cr 0.50 Mo 0.50 V+Nb+Ti 0.15 Cu 0.50 Ni 1.00 Cr 0.50 Mo 0.50 CeⅡW 0.43 CE PCM 0.25 CeⅡW = C+Mn/6 +Cr/5+Mo/5 +V/5+Ni/15 +Cu/15 CE PCM = C + Si/30 +Mn/20+Cu/20 +Ni/60+Cr/20 +Mo/15+V/10+B 245~450 415~655 0.93 290~495 415~655 0.93 320~525 435~655 0.93 360~530 460~760 0.93 390~545 490~760 0.93 415~565 520~760 0.93 450~600 535~760 0.93 485~635 570~760 0.93 555~705 625~825 0.93 A f =c A xc 0.2 U 0.9 A f 최소연신율 C 1940 (SI) A xc 시험편단면적 (mm²) U 최소인장강도 (Mpa) No Crack R t0.5 Yield Strength 0.5% Total extension Steel Pipe Steel Pipe Pile Stainless Steel Welded Pipe & Tube 50 51

01. Hot Rolled Coil 열연코일 3) Chemical Compositions & Mechanical Properties 별성분및재질 (22) Hot Rolled Carbon Steel Strip for Petroleum, Natural Gas Line Pipe API 5L for Sour Service 석유및천연가스수송강관 (API 5L) 화학성분 (wt%) Chemical Composition, 최대치 C Si Mn P S 기타비고 X42MS* 0.10 0.40 1.25 0.020 0.002 X52MS* 0.10 0.45 1.45 0.020 0.002 X60MS* 0.10 0.45 1.45 0.020 0.002 X65MS* 0.10 0.45 1.60 0.020 0.002 X70MS* 0.10 0.45 1.60 0.020 0.002 *: 사전협의필요 Prior discussion is necessary V 0.04 Nb 0.04 Ti 0.04 Cu 0.35 Ni 0.30 Cr 0.30 Mo 0.15 B 0.0005 V 0.05 Nb 0.06 Ti 0.04 Cu 0.35 Ni 0.30 Cr 0.30 Mo 0.15 V+Nb+Ti 0.15 V 0.08 Nb 0.08 Ti 0.06 Cu 0.35 Ni 0.30 Cr 0.30 Mo 0.15 V+Nb+Ti 0.15 V 0.10 Nb 0.08 Ti 0.06 Cu 0.35 Ni 0.30 Cr 0.30 Mo 0.15 V+Nb+Ti 0.15 V 0.10 Nb 0.08 Ti 0.06 Cu 0.35 Ni 0.30 Cr 0.30 Mo 0.15 B 0.0005 CE PCM 0.19 CE PCM 0.20 CE PCM 0.21 CE PCM 0.22 if agreed, Mo 0.35 CE PCM 0.22 if agreed, Mo 0.35, Cr 0.45 항복강도 R t0.5 (N/mm²) 인장강도 R m (N/mm²) YR Max. R t0.5 /R m 290~495 415~655 0.93 360~530 460~760 0.93 415~565 520~760 0.93 450~600 535~760 0.93 485~635 570~760 0.93 연신율 A f 최소치 (%) A f =c A xc 0.2 U 0.9 A f 최소연신율 C 1940 (SI) A xc 시험편단면적 (mm²) U 최소인장강도 (Mpa) Bend TEST No Crack 비고 R t0.5 Yield Strength 0.5% Total extension Hot Rolled Coil Cold Rolled Coil Steel Plate Steel Pipe Steel Pipe Pile Stainless Steel Welded Pipe & Tube 52 53

01. Hot Rolled Coil 열연코일 4) Packing & Marking 포장및마킹 (1) Packing 포장 HR COIL HFL SPM 2 HRPlate Hot Rolled Coil Cold Rolled Coil Steel Plate (2) Marking 마킹 1 Coil 코일 LABEL 일반제품표 ( 내수, 수출 ) JIS 인증제품표 ( 내수, 수출 ) Inspector Park.J.D 82)416801735 Inspector Park.J.D 82)416801735 SHIPPING MARK (3) Display Items and Font Size for Marking 표시항목및글자크기 구분표시항목글자크기 Main Marking Stamping 타각 Side Label 부착 Color Marking 칼라마킹 HYUNDAI STEEL, 마킹명, Customer PO No, Lot No, 마킹치수, 제품번호, Heat No (7 개항목 ) 제품번호, 선급협회마크, Heat No, 약호 (4개항목 ) 제품번호, 약호, 치수, Lot No, 고객사 가로 25mm, 세로 35mm, 항목간간격 5mm, 상 하부간격 10mm 가로 5mm, 세로 7mm, 항목간간격 1mm, 상 하부간격 2mm LINE 당최대글자수 50 30 글자방향 90 ( 압연방향기준 ) 90 ( 압연방향기준 ) 위치 TOP, 상면 TOP, 측면 5mm x 200mm 80 압연방향 TOP, 측면 RED, WHITE 흰색 1/2/3 줄, 빨강색 1/2/3 줄 TOP, 상면 Steel Pipe Steel Pipe Pile Stainless Steel Welded Pipe & Tube 54 55

02. COLD Rolled Coil 냉연코일 1) Standard & Applications 제품및용도 용도 Applications 산세강판및강대배전반, 공작기계용 / 자동차고장력 (Pickled & Oiled, PO) 산세강판및강대자동차구조용 (Pickled & Oiled, PO) 냉간압연강판및강대드럼용, 자동차내 / 강판용 (Cold Rolled Coil, CR) 냉간압연강판및강대자동차용냉간압연고장력강판 (Cold Rolled Coil, CR) 용융아연도금강판및강대 DUCT 용, 경량철골용, 자동차내 / 외판용 (Galvanized, GI) 용융합금화아연도금강판및강대자동차내 / 외판용, 가전용 (Galvaannealed, GA) Standard JIS KS ASTM/SAE EN SPHC SPHD SPHE SPFH490 SPFH540 SPFH590 SAPH310 SAPH370 SAPH400 SAPH440 SPCC SPCD SPCE SPFC340 SPFC370 SPFC390 SPFC440 SPFC490 SPFC540 SPFC590 SPFC780 SPFC980 SGCC SGCD SGC340 SGC400 SGC440 SGC490 SGC570 SPHC SPHD SPHE SPFH490 SPFH540 SPFH590 SAPH310 SAPH370 SAPH400 SAPH440 SPCC SPCD SPCE SPFC340 SPFC370 SPFC390 SPFC440 SPFC490 SPFC540 SPFC590 SPFC780 SPFC980 SGCC SGCD SGC245Y SGC295Y SGC335Y SGC365Y SGC560Y ( 자체 ) SGACC SGACD SGACEN SGACUD SGARC340BH A1008CS A1008DS A1008DDS A1008EDDS A100833 A100860 A653MCS A653MDS A653MDDS DD11 DD12 DD13 E DC01 E DC03 E DC04 E DC05 E DC06 E H240LA E H260LA E H300LA E H320LA E H340LA E H380LA E H420LA E DX51D+ZF E DX52D+ZF E DX53D+ZF E DX54D+ZF E DX56D+ZF E HX220LAD E HX260LAD E HX340LAD E HX380LAD E HX420LAD 용도 Applications 전기아연도금강판및강대복사기내판, 가전기기범용, 자동차용 (ElectroGalvanized, EG) 도장용융아연도금강판및강대지붕용, 건축내 / 외판용 (Galvanized Color, GIC) 열연용융아연도금강판및강대 (Hot Rolled Galvanized, HGI/HGA) Standard JIS KS ASTM/SAE EN SECC SECD SECE SEFC340 SEFC490 CGCC CGCH CGCD CGC340 CGC400 CGC440 CGC490 CGC570 SGHC SGH340 SGH400 SGH440 SGH490 SGH550 SECC SECD SECE SEFC340 SEFC490 CGCC CGCH CGCD CGC245Y CGC295Y CGC335Y CGC365Y CGC560Y SGHC SGH245Y SGH295Y SGH355Y SGH365Y SGH400Y A591CQ A653MCS A653MDS A653MDDS A653MCS A653MLFQ A653MG40 A653MG50 E DC01+ZE E DC03+ZE E DC04+ZE E DC05+ZE E DC06+ZE E H260LA+ZE E H340LA+ZE E DX51D+Z E DX52D+Z E DX53D+Z E DX54D+Z E S280GD+Z E S320GD+Z 56 57

02. COLD Rolled Coil 냉연코일 2) Chemical Compositions & Mechanical Properties 별성분및재질 (1) Cold Rolled Coil, CR 냉간압연강판및강대드럼용, 자동차내 / 강판용 JIS G3141 EN 10130 ASTM (1008) SPCC 구분 소둔 표준조질 1/8 경질 1/4 경질 1/2 경질 경질 화학성분 (wt%) Chemical Composition, 최대치 C Si Mn P S 0.15 이하 * 0.60 이하 * 0.1 이하 * 0.035 이하 * SPCD 1.2~14.0 0.1 이하 * 0.50 이하 * 0.040 이하 * 0.035 이하 * SPCE 1.2~6.0 0.08 이하 * 0.45 이하 * 0.03 이하 * 0.03 이하 * DC01 0.12 0.60 0.045 0.045 DC03 0.10 0.45 0.035 0.035 비합금강 DC04 0.08 0.40 0.030 0.030 DC05 0.06 0.35 0.025 0.025 DC06 합금강 0.02 0.25 0.020 0.020 CS DS Type A 0.10 0.60 0.025 0.035 Type B 0.02~0.15 0.60 0.025 0.035 Type C 0.08 0.60 0.100 0.035 Type A 0.08 0.50 0.020 0.020 Type B 0.02~0.08 0.50 0.020 0.020 DDS 0.06 0.50 0.020 0.020 EDDS 0.02 0.40 0.020 0.020 항복강도최소값 (N/mm²) 인장강도최소값 (N/mm²) 연신율 (mm,%) 최소값경도굴곡시험 Min. HRB HV ( 반경 / ) 57 이하 * 65 이하 * 105 이하 * 115 이하 * 50~71 95~130 밀착 65~80 115~150 1.0 74~89 135~185 2.0 85 이상 170 이상 270 270 0.25 t < 0.30 0.30 t < 0.40 0.40 t < 0.60 0.60 t < 1.0 1.0 t < 1.6 1.6 t < 2.5 2.5 0.25 t < 0.40 0.40 t < 0.60 0.60 t < 1.0 1.0 t < 1.6 1.6 t < 2.5 2.5 30 33 36 38 39 40 41 32 35 38 40 41 42 43 57 이하 * 65 이하 * 57 이하 * 65 이하 * 105 이하 * 115 이하 * 105 이하 * 115 이하 * ~280 270~410 28 ~240 270~370 34 ~210 270~350 38 ~180 270~330 40 ~170 270~330 41 140~275 150~240 30 이상 밀착 밀착 밀착 36 이상 115~200 38 이상 105~170 40 이상 비고 (1) 표준조질및소둔상태인장시험치는원칙적으로적용하지않음. 단, 주문자가지정하는경우 ( ) 내의수치적용 (2) * 표시는모두참고치 (3) 인장시험및연신율은 30mm 이상에적용 (4) 0.6mm 미만은원칙적으로인장시험생략. 58 59

02. COLD Rolled Coil 냉연코일 2) Chemical Compositions & Mechanical Properties 별성분및재질 (2) Cold Rolled Coil, CR 냉간압연강판및강대자동차용냉간압연고장력강판 JIS G3135 DIN EN 10268 ASTM (1008) 적용 화학성분 (wt%) Chemical Composition, 최대치 C Si Mn P S SPFC340 0.6 이상 SPFC370 2.3 이하 SPFC390 SPFC440 0.6 이상 SPFC490 2.3 이하 SPFC540 SPFC590 SPFC490Y 0.6 이상 SPFC540Y 2.3 이하 SPFC590Y SPFC780Y 0.8 이상 SPFC980Y 2.0 이하 SPFC340H 0.6 이상 1.6 이하 H240LA H260LA 0.10 0.50 1.00 0.030 0.025 H300LA 0.12 0.50 1.40 0.030 0.025 H340LA 0.12 0.50 1.50 0.030 0.025 H380LA 0.12 0.50 1.60 0.030 0.025 H420LA 0.14 0.50 1.60 0.030 0.025 33TYPE1 0.20 0.60 0.035 0.035 33TYPE2 0.15 0.60 0.2 0.035 60 0.20 1.35 0.035 0.035 항복강도최소값 (N/mm²) 인장강도최소값 (N/mm²) 연신율 (%) 굴곡시험 ( 굴곡반경 / ) 0.60 t < 1.0 1.0 t < 2.3 시편굽힘각도내촉간격시편 175 340 34 35 205 370 32 33 235 390 30 31 265 440 26 27 295 490 23 24 325 540 20 21 0.5t 355 590 17 18 5호 C방향 180 O 1.0t 225 490 24 25 밀착 245 540 21 22 0.5t 265 590 18 19 1.0t 365 780 13 14 3.0t 490 980 6 7 4.0t 185 340 34 35 밀착 밀착 3 호 C 방향 260 350 26 300 380 23 340 410 21 380 440 19 420 470 17 230 330 22 410 520 12 비고 (1) SPFC35H 의도장소부경화량은 30N/mm 2 이상 (2) 시험의수냉간압연하는경우 Coil 마다 1개. 단코일중량 3톤미만의경우동일용강, 동일, 동일압연조건및동일열처리마다 60 61

02. COLD Rolled Coil 냉연코일 2) Chemical Compositions & Mechanical Properties 별성분및재질 (3) Galvanized 용융아연도금강판및강대 DUCT 용, 경량철골용, 자동차내 / 외판용 JIS G3302 SGCC 표시 0.25 이상 3.2 이하 화학성분 (wt%) Chemical Composition, 최대치 C Si Mn P S 0.15 0.8 0.05 0.05 SGCD1 0.12 0.6 0.04 0.04 0.4 이상 2.3 이하 SGCD2 0.10 0.45 0.03 0.03 SGCD3 SGC340 0.6 이상 2.3 이하 0.08 0.45 0.03 0.03 0.25 1.7 0.2 0.05 SGC400 0.25 1.7 0.2 0.05 0.25 이상 3.2 이하 SGC440 0.25 2.0 0.2 0.05 SGC490 0.30 2.0 0.2 0.05 SGC570 0.25 이상 2.0 이하 0.30 2.5 0.2 0.05 항복강도최소값 (N/mm²) 인장강도최소값 (N/mm²) 0.25 이상 0.40 미만 0.40 이상 0.60 미만 0.60 이상 1.0 미만 연신율 (%) 1.0 이상 1.6 미만 1.6 이상 2.5 미만 270 이상 34 36 37 38 270 이상 36 38 39 40 270 이상 38 40 41 42 2.5 이상 245 이상 340 이상 20 20 20 20 20 20 295 이상 400 이상 18 18 18 18 18 18 335 이상 440 이상 18 18 18 18 18 18 365 이상 490 이상 18 16 16 16 16 16 560 이상 570 이상 비고 62 63

02. COLD Rolled Coil 냉연코일 2) Chemical Compositions & Mechanical Properties 별성분및재질 (3) Galvanized 용융아연도금강판및강대 DUCT 용, 경량철골용, 자동차내 / 외판용 EN 10142 DIN EN 10292 ASTM (653M) 도금량 Symbol DX51D+Z +Z DX51D+ZF +ZF DX52D+Z +Z DX52D+ZF +ZF DX53D+Z +Z DX53D+ZF +ZF DX54D+Z +Z DX54D+ZF +ZF DX56D+Z +Z DX56D+ZF HX220LAD +ZF 화학성분 (wt%) Chemical Composition, 최대치 C Si Mn P S 0.18 0.50 1.20 0.12 0.045 0.12 0.50 0.60 0.10 0.045 HX260LAD 0.12 0.50 0.60 0.03 0.025 HX340LAD +Z, +ZF 0.11 0.50 1.00 0.03 0.025 HX380LAD 0.11 0.50 1.40 0.03 0.025 HX420LAD 0.11 0.50 1.40 0.03 0.025 CS TYPE A 0.10 0.60 0.030 0.035 CS TYPE B 0.02~0.15 0.60 0.030 0.035 CS TYPE C 0.08 0.60 0.100 0.035 DDS TYPE A 0.06 0.50 0.020 0.025 DDS TYPE C 0.02 0.50 0.020~0.1 0.025 항복강도 (N/mm²) 인장강도 (N/mm²) 연신율 (%) 최소값 도금량 ( 양면 g/m 2 ) 100 140 220 (225) 270~500 22 275 350 (450) (600) 100 140 100 140 200 140~300 270~420 26 (225) 275 100 140 100 140 200 140~260 270~380 30 (225) (275) 100 140 100 140 36 200 120~220 260~350 (225) (275) 34 100 140 100 140 39 200 120~180 260~350 (225) (275) 37 100 140 260~330 350~430 26 340~420 410~510 21 380~480 440~560 19 420~520 470~590 17 170~380 20 이상 205~380 20 이상 170~410 15 이상 140~240 32 이상 170~280 32 이상 (1) ( ) 내의도금량협의하에가능 비고 (2) 3 점법과 1 점법에대해양면합계도금량적용. 편면도금량은 1 점법값의 40% 이상으로가정할수있다. 도금량 (g/m 2 ) 양면 3 점법평균부착량 양면 1 점법최소부착량 100 100 85 140 140 120 200 200 170 225 225 195 275 275 235 350 350 300 450 450 385 600 600 510 64 65

02. COLD Rolled Coil 냉연코일 2) Chemical Compositions & Mechanical Properties 별성분및재질 (4) ElectroGalvanized, EG 전기아연도금강판및강대복사기내판, 가전기기범용, 자동차용 종별원판 JIS G3313 번호 A59189 일반용 SECC SPCC 표시 최소항복점 (N/mm²) 최소인장강도 (N/mm²) (270) 드로잉용 SECD SPCD 0.43.2 270 디프드로잉용 SECE SPCE 270 드로잉가공용 SEFC340 SPFC340 175 340 가공용 SEFC490 SPFC490 0.62.3 295 490 명칭 전기아연도금강판 적용 번호강종탈산 type EN10152 번호 EN10268 비합금강 화학성분 (%) 최대 C Mn P S Cu CQ 일반용 0.15 0.6 0.035 0.035 DQ, DDQ 가공용 0.1 0.5 0.025 0.025 DC01+ZE 화학성분 (%) 최대 C Mn P S Ti 0.12 0.6 0.045 0.045 DC03+ZE 0.1 0.45 0.035 0.035 완전탈산 DC04+ZE 0.08 0.4 0.03 0.03 DC05+ZE 0.06 0.35 0.025 0.025 합금강 DC06+ZE 완전탈산 0.02 0.25 0.02 0.02 0.3 화학성분 (%) 최대 C Si Mn P S 항복강도 (N/mm²) 인장강도 (N/mm²) H260LA+ZE 0.1 0.5 1 0.03 0.025 260/330 350/430 26 H340LA+ZE 0.12 0.5 1.5 0.03 0.025 340/420 410/510 21 A B 최소 EL (%) 연신율최소값 (%) 인장굴곡시험 (180 o ) 0.40 t < 0.60 0.60 t < 1.0 1.0 t < 1.6 1.6 t < 2.3 2.3 t < 2.5 2.5 t 시험편내측반경시험편 소둔표준조질 1/8경질 : 밀착 34 36 37 38 38 39 1/4경질 : 1.0 1/2경질 : 2.0 5호 L방향 경질 : 36 38 39 40 40 41 밀착 38 40 41 42 42 43 밀착 34 35 35 밀착 5호 C방향 23 24 24 밀착 연신율최소값 (%) 3 호 L 방향 3 호 C 방향 최소치 (3점) 최소치 (1점) 구분상당도금 ( 편면 ) 부착량 ( 양면 ) 상당도금 ( 편면 ) 부착량 ( 양면 ) in mm oz/ft 2 g/m 2 in mm oz/ft 2 g/m 2 in B 0.000065 0.00165 0.08 24 0.00006 0.00152 0.07 22 0.00014 0.00356 0.16 48 0.000125 0.00318 0.15 45 항복강도 (N/mm²) 인장강도 (N/mm²) 최소 EL (%) r90 최소 n90 최소 280 270/410 28 1. 0.5 < t 0.7일경우항복강도 20N/mm 2 증가, t 0.5일경우항복강도 240 270/370 34 1.3 40N/mm 2 증가 220 270/350 37 1.6 0.17 2. 0.5 < t 0.7일경우연신율 2% 감소, t 0.5일경우연신율 4% 감소 3. r90, n90 r값은 t 0.5 이상제품에적용 200 270/330 39 1.9 0.19 4. t > 0.5일경우 r90 값은 0.2 감소 180 270/350 41 2.1 0.21 5. 첨가원소중 Ti는 Nb로대체가능함 비고 66 67

02. COLD Rolled Coil 냉연코일 2) Chemical Compositions & Mechanical Properties 별성분및재질 (5) Galvanized Color, GIC 도장용융아연도금강판및강대지붕용, 건축내 / 외판용 적용도장원판표시 JIS G3312 번호 A653 EN10142 EN10147 C 화학성분 (%) 최대 일반용 CGCC SGCC 0.25 t < 2.3 0.15 0.8 일반경질용 CGCH SGCH 0.11 t < 1.0 0.18 1.2 조임용 구조용 CS FS DDS CGCD CGC340 SGCD1 0.12 0.6 Mn SGCD2 0.1 0.45 SGCD3 0.08 0.45 SGC340 0.25 1.7 CGC400 SGC400 0.25 1.7 CGC440 SGC440 0.25 t < 1.6 0.25 2 CGC490 SGC490 0.3 2 CGC570 SGC570 0.3 2.5 화학성분 (%) 최대 C Mn P S Cu Ni Cr Type A 0.1 0.6 0.03 0.035 0.25 0.2 0.15 Type B 0.020.15 0.6 0.03 0.035 0.25 0.2 0.15 Type C 0.08 0.6 0.1 0.035 0.25 0.2 0.15 Type A 0.1 0.5 0.02 0.035 0.25 0.2 0.15 Type B 0.020.1 0.5 0.02 0.03 0.25 0.2 0.15 Type A 0.06 0.5 0.02 0.025 0.25 0.2 0.15 Type C 0.02 0.5 0.020.1 0.025 0.25 0.2 0.15 항복강도 (N/mm²) 인장강도 (N/mm²) 연신율 (%) Min. DX51D+Z 270 22 DX52D+Z 140 270 26 DX53D+Z 140 270 30 DX54D+Z 120 260 36 S280GD+Z 280 360 18 S320GD+Z 320 390 17 화학성분 (%) 최대항복강도인장강도연신율 (%) P S (N/mm²) (N/mm²) min. 0.05 0.05 205 270 0.25 t < 2.3 0.08 0.05 0.04 0.04 270 0.03 0.03 270 0.03 0.03 270 0.2 0.05 245 340 0.4 t < 0.6 0.6 t < 1.0 1.0 t < 1.6 1.6 t < 2.5 0.2 0.05 295 400 18 0.2 0.05 335 440 0.25 t < 1.6 18 0.2 0.05 365 490 16 0.2 0.05 560 570 화학성분 (%) 최대 Mo V Cb Ti Al (min.) 항복강도 (N/mm²) 인장강도 (N/mm²) 연신율 (%) r m Value 0.06 0.008 0.008 0.025 170/380 20 0.06 0.008 0.008 0.025 205/380 20 0.06 0.008 0.008 0.025 170/410 15 34 36 37 38 36 38 39 40 38 40 41 42 20 n Value 0.06 0.008 0.008 0.025 170/310 26 1.0/1.4 0.17/0.21 0.06 0.008 0.008 0.025 170/310 26 1.0/1.4 0.17/0.21 0.06 0.008 0.008 0.025 0.01 140/240 32 1.4/1.8 0.19/0.24 0.06 0.1 0.1 0.15 0.01 170/280 32 1.2/1.8 0.17/0.24 68 69