Galvanized_Steel_Coil_Sheets.pdf

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1 GALVANIZED STEEL COIL & SHEET

2 THE DREAM FUTURE COME TO BE REAL BY Steel that you've been dreaming for SeAH Steel brings you to a new worldopening a new horizon. SeAH Steel which is the first steel pipe company founded in Korea has been leading with "Never stop developing new technology, new products and improving quality" in this field at domestic market. Starting with production of precoated metal, the essence of cold rolled steel, SeAH is about to embark on Galvanized Iron business to take another quantum leap as a leading steel producer. In addition we will make every effort to grow up to be the word best in the area of surface handling steel plate. CONTENTS SeAH STEEL CORPORATION /2 3 /

3 GALVANIZED STEEL COIL & SHEET MANUFACTURING PROCESS What is HotDip Galvanized Iron (GI)? Galvanized Iron is a product of continuous hotdipping of cold rolled steel into the zinc pot. It boasts thick coating thickness and high corrosion resistance. In particular, SeAH's outstanding quality steel product are applicable for various purposes ranging from home electric appliances, automobiles to constructions. /4 5 / SeAH STEEL CORPORATION

CHARACTERISTICS OF PRODUCT SURFACE FINISHES & CHARACTERISTICS Classification Surface Regular spangle Minimized spangle Zero spangle/extra Smooth Superb

furthermore, chromic acid treatment gives not only stronger protection against rust but also on its surface luster.

Cold rolled steel undergoes continuous annealing, galvanization and flatness adjustment processes.

labors. The surface gavanization, resulting in superfine crystals. Galvanized Iron guarantees you an impeccably even and smooth surface.

Characteristics Zinc is coagulated at a normal temperature, giving unique crystal and luster. Enhanced corrosion resistance.

When the Galvanized, layer is coagulated it goes though Temper Roll, making super fine crystals.

4 CHARACTERISTICS OF PRODUCT SURFACE FINISHES & CHARACTERISTICS Classification Surface Regular spangle Minimized spangle Zero spangle/extra Smooth Superb Corrosion Resistance SeAH's corrosion resistance enhanced Galvanized Iron protects base metal against rust with its anticorrosion effect. furthermore, chromic acid treatment gives not only stronger protection against rust but also on its surface luster. Execellent Workability SeAH's Galvanized Iron gives execellent workability. Cold rolled steel undergoes continuous annealing, galvanization and flatness adjustment processes. Continuous galvanizing SeAH's high quality Galvanized Iron provides beautiful surface and excellent printability with our high tech facilities and skilled labors. The surface gavanization, resulting in superfine crystals. Galvanized Iron guarantees you an impeccably even and smooth surface. Elegant surface handling After coating, a crystal particle is delicated and appearance is equalized and elegant by restraining the zinc's growth. Characteristics Zinc is coagulated at a normal temperature, giving unique crystal and luster. Enhanced corrosion resistance. Crystalization is deterred while HotDipped zinc coagulates, forming fine crystals, and thereby giving beautiful surface to SeAH's Galvanized Iron. When the Galvanized, layer is coagulated it goes though Temper Roll, making super fine crystals. Its fine surface makes itself suitable for printing purposes Outstanding Paintability Thanks to its fine spangles, SeAH's Galvanized Iron gives excellent paintability and beautiful appearance. Applications Construction Materials Pipe Construction Materials Construction Materials Office Equipment/Home Appliances Pipe/Automobile Inner Plate Various Apparatus Construction Materials Office Equipment/Home Appliances Pipe/Automobile Inner Plate Color Basemetal/ Various Apparatus /6 7 / SeAH STEEL CORPORATION

5 APPLICATIONS Steel house, light weight steel Duct, Deck Plate, Sound proof Wall, Signboard, Gutter, Fence, Sash Reinforcement Material roofing panel, walling panel, building exterior, etc. Automotive Parts, Body, fender, Muffler, Fuel, Tank, Switch, Board, Electric Conduit Pipe, Switch Box, etc. Refrigerator, Air Conditioner, Microwave Over, Vending, Machine, Lighting, etc. Desk, Cabinet, Container, Ship building, Pipe, Color basemetal, etc. /8 9 / SeAH STEEL CORPORATION

6 WORLD BEST SSTEEL BY WE MAKE NO.1 G.I. SPECIFICATIONS & SIZE AVAILABILITY SeAH strives to produce the world's best quality Galvanized lron. SeAH's dream of the World Best Galvanized Iron is about to realize before you. Classification/Spec KS D356 JIS G332 ASTM Commercial Quality SGCC SGCC A 526 A 653CQ Lockforming Quality SGCD 1 SGCD 1 A 527 A 653LFQ Drawing Quality SGCD 2 SGCD 2 A 528 A 653DQ Deep Drawing Quality SGCD 3 SGCD 3 Deep Drawing Quality, Nonaging SGCD 3N SGCD 3N A 642 A 653DQSK Extra Deep Drawing Quality, Nonaging SGC 35 SGC 34 A 446Gr A A 653SQ23 A 446Gr B A 653SQ255 Structural Quality SGC 41 SGC 45 SGC 4 SGC 44 A 446Gr C A 446Gr D A 653SQ275 A 653SQ34 SGC 5 SGC 49 A 446Gr F SGC 58 SGC 57 A 446Gr E A 653SQ55 Classification/Spec Drawing Quality KS D356 JIS G332 ASTM Commercial Quality SGHC SGHC A 526H A 653CQ Lockforming Quality A 527H A 653LFQ SGH 34 SGH 4 A 653H Structural Quality SGH 44 SGH 49 A 446DH A 446FH A 653H A 653H SGH 54 A 446EMH /1 11 / SeAH STEEL CORPORATION

7 SPECIFICATIONS Designation SGCC SGCD 1 SGCD 2 SGCD 3 SGC 34 SGC 4 SGC 44 SGC 49 SGC 57 Designation SGHC SGH34 SGH4 Nominal Thickness Yield Point min N/mm² Yield Point min N/mm² Triple Spots Tensile Strength min N/mm² Tensile Strength min N/mm² Single Spots to.4 under Elongation min.% (Z6), F6 Z8, F8 Z1, F1 Z12, F12 Z, (F) Z.4 to.6 under Test Piece No.5 Rolling Direction Equivalent Specification KS D356 JIS G332 (Z6), F6 Z8, F8 Z1, F1 Z12, F12 Z, (F) Z Elongation min.% Thickness,mm.6 to 1. under Designation SGH44 SGH49 SGH54 Nominal Thickness to 1.6 under Yield Point min N/mm² Triple Spots to 2.5 under Tensile Strength min N/mm² Single Spots over 2.5 Elongation min.% Z22 Z25 Z27 Z35 Z45 Z6 Test Piece No.5 Rolling Direction Test Piece No.5 Rolling Direction (unit :g/m²) Equivalent Specification KS D356 JIS G332 Z22 Z25 Z27 Z35 Z45 Z6 Thickness/Width under to.4 under.4 to.6 under.6 to.8 under.8 to 1. under 1. to 1.25 under 1.25 to 1.6 under 1.6 to 2. under Symbol(Zinc) Width under 1,5 over 1,5 Width/Length under 63 over 63 Width/Length under to 1, under over 1, Under 2, under 1, 1, to 1,25 under 1,25 to 1,6 under HR Base Mill Edge Slit Edge Sheet under 63 ±.4 ±.5 ±.6 ±.8 ±.9 ±.11 Over 2, Sheet max 15 max 15 max ±.4 ±.5 ±.6 ±.8 ±.1 ±.12 Tolerances Under 2,5 2,5 to 4, under Over 4, 4mm in any mm 2mm in any mm max 1 max 12 max CR Base Coil Coil Z6 Z8 Z1 Z12 Z Z Z22 Z25 Z27 Coating Thickness to 1, under +1 1, to 1,25 under ±.4 ±.5 ±.6 ±.8 ±.9 ±.11 ± ,25 to 1,6 under ±.6 ±.9 ±.1 ±.12 ±.14 5mm in any 2,mm 6 max 8 max 9 max Width Commercial Quality Structural Quality Thickness 1, to under 1, under 1,6 1,5 under 1.6 to 2. under CR Base Be expressed A/W1(%) Not exceed 1% W under 1,25 over 1,25 ±.17 ±. ±. max max HR Base max max Width/Deformation Wave Edge Wave Center Wave Width/Deformation Wave Edge Wave Center Wave +15 Rolling Direction Camber mm Width A +15 max max /12 13 / SeAH STEEL CORPORATION

PACKING & MARKING CAUTIONS STANDARD PACKING Coil Galvanized coils are generally packaged without the wooden skids to facilitate efficient loading.

After wrapping, steel protectors are attached to cover the outer and inner surfaces and both edges of the coil.

After inspection, sheared sheets for one unit wrapped in waterproof paper. After wrapping steel corner protectors are placed corner and side steel protectors completely encase the package.

A paper sticker is affixed on the side of each package, which shows its corresponding order number, destination, specifications. size net weight, gross weight and package number.

Coils (for Domestic Market) Corrugated Corner Protector Water Proof Paper Rust Proof Paper Product Coils (for Overseas Market) Product Water Proof Paper Cover Plate Corrugated Corner Protector An

8 PACKING & MARKING CAUTIONS STANDARD PACKING Coil Galvanized coils are generally packaged without the wooden skids to facilitate efficient loading. Bare coil has one circumferential steel band and is wrapped in waterproof paper, antirust polyethylene paper. After wrapping, steel protectors are attached to cover the outer and inner surfaces and both edges of the coil. After attaching steel protectors, the package is banded with three circumferential steel bands and six transverse steel bands. MARKING Sheets Galvanized sheets are generally made up in threeton units. After inspection, sheared sheets for one unit wrapped in waterproof paper. After wrapping steel corner protectors are placed corner and side steel protectors completely encase the package. Wooden skids are placed on the bottom of the package. The entire package is banded with bands. A paper sticker is affixed on the side of each package, which shows its corresponding order number, destination, specifications. size net weight, gross weight and package number. Of course, SeAH Steel will apply other markings required by customers, to their complete satisfaction. Coils (for Domestic Market) Corrugated Corner Protector Water Proof Paper Rust Proof Paper Product Coils (for Overseas Market) Product Water Proof Paper Cover Plate Corrugated Corner Protector An order inquiry should be accompanied by the following information. 1. Size 1) Thickness 2) Width 3) Length(In the case of Cut Lengths 2. Specific requirements 1) Coating designation or Wt. 2) Type of coating & surface treatment 3) Coil I.D 4) Packing Wt. 5) welding portion 3. Quantity 4. Intended use 5. Packing and marking requirement 6. Delivery requirement 7. Required inspection, if other than Mill inspection 8. Other pertinent information Inner Ring Inside Steel Sheet Outside Steel Sheet Outside Steel Sheet 1. If at all possible, store in a dry place, since prolonged storage in high humidity causes white rust. Sheet 2. Make sure that the galvanized surface is not scratched or otherwise damaged during transport or working, since such scratches or damage reduces corrosion resistance. Upper Steel Sheet Side Steel Sheet Wooden Skid Rust Proof Paper Water Proof Paper TAG MARKING Wooden Skid 3. Please pay attention to the following points when degreasing before coating or painting. 1) For degreasing use a neutral or weak alkaline degreaser. A strong alkaline degreaser may seriously damage the zinc layer and thus reduce corrosion resistance. 2) After degreasing, rinse carefully until the degreaser has been removed completely. 3) Dry thoroughly immediately after rinsing. /14 15 / SeAH STEEL CORPORATION

9 14.2 Printed in Korea

GI-110401

GI-110401 G.I HotDip Galvanized Steel www.eunionsteel.com web.unionsteel.co.kr Seoul Head Office Tel : 0222220114 Fax : 0222220275 FERRUM TOWER 66, SuhaDong, JungGu, Seoul, Korea, Zip 100210 Tel : 82222220114 Fax