/ / High-performance Turning Grade and Chip Breaker for Austenitic, Martensitic, and Ferritic Stainless Steel Stainless steels can be roughly divided

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High speed aluminum milling tool / / Chip Breaker ( ) Chip Breaker ( ) CVD Coated Turning Inserts for Stainless Steel Increased Productivity Extended tool life at high speeds, feeds, and depths of

1 High speed aluminum milling tool / / Chip Breaker ( ) Chip Breaker ( ) CVD Coated Turning Inserts for Stainless Steel Increased Productivity Extended tool life at high speeds, feeds, and depths of cut Comprehensive Use A wide grade lineup for most workpiece sizes and types, including heavy interruption ( / / ) Solutions for Most Common Issues in Stainless Steel Machining Prevents built-up edge, notch wear, plastic deformation, and burr creation Chip Breaker ( ) Chip Breaker ( )

/ / High-performance Turning Grade and Chip Breaker for Austenitic, Martensitic, and Ferritic Stainless Steel Stainless steels can be roughly divided into three types - the austenite, the martensite

The most commonly used stainless steels are high hardness types such as 13Cr, 18Cr, 18Cr-8Ni, etc.

$fracture. Its combination of tough and hard material characteristics require the prudent selection of grades and chip breakers.$ The NC9100 Series can solve most Stainless Steel machining problems with its combination of three layers the top coat protects against welding, the coating layers protect against wear even at high

The NC9100 Series can solve most Stainless Steel machining problems with its combination of three layers the top coat protects against welding, the coating layers protect against wear even at high

Its dual angle land design allows for both sharp performance and strong edges, which promotes extended tool life and minimized force and built-up edge.

2 / / High-performance Turning Grade and Chip Breaker for Austenitic, Martensitic, and Ferritic Stainless Steel Stainless steels can be roughly divided into three types - the austenite, the martensite and the ferrite. They feature smooth surfaces and excellent corrosion resistance. Their use typically requires no need for surface paints or colors. The most commonly used stainless steels are high hardness types such as 13Cr, 18Cr, 18Cr-8Ni, etc. Chip Breaker Chip Breaker The reason Stainless Steel is often considered a hard-to-cut material is its large shearing resistance that can easily cause work hardening, built-up edges, and edge fracture. Its combination of tough and hard material characteristics require the prudent selection of grades and chip breakers. These challenges led KORLOY to develop the CVD coated turning grade series, / / along with new chip breakers (for medium ) and (for roughing). The NC9100 Series can solve most Stainless Steel machining problems with its combination of three layers the top coat protects against welding, the coating layers protect against wear even at high speeds over 492sfm, and the tough substrate against chipping. The chip breaker for medium is the 1st recommended for stainless steel. Its dual angle land design allows for both sharp performance and strong edges, which promotes extended tool life and minimized force and built-up edge. In addition, wide chip pockets prevent chips from interrupting the minor edges and instead lets the chips out of the area. These chip breaker features help prevent plastic deformation and excessive wear. The chip breaker for roughing is recommended in rough machining and in cases where burrs are an issue. It has a wide land and rake angle lowering resistance. Cutting heats can flow around the gentle slope of rake surface and can be effectively dispersed and evacuated at high feeds and high depths of cut. Solving the four main issues in stainless steel machining Prevents built-up edge, notch wear, plastic deformation, and burrs Ideal combination of grade and chip breaker Stable tool life Applicable to a wide range of applications from roughing to finishing Advantages Stable tool life at high speeds, feeds, and depths of cut In case of STS316, high speeds available over 492sfm High chip removal rate for higher productivity Shortened time due to higher conditions Versatile applications for different workpiece materials Machining of various workpie cessuch as austenitic, martensitic and ferritic stainless steel 02 KORLOY TECH-NEWS

50 th Anniversary CVD Coated Grade NC9100 Series M Common Problems

promotes excessive notch wear. 1. Built-up edge 2.

high heat and shear chips, all of which are concentrated on the edge

existing coating film NC9100 Series ( / / ) Development Excellent

substrate for different speeds, feeds, and degrees of interruption

79 μm Cutting speed, vc(sfm) 787 722 656 591 525 459 394 328 Grade

Interrupted 1 Top coat with higher welding resistance 2 Alumina layer

resistance 4 High toughness substrate optimal for all continuous/low

toughness substrate Reduces notch wear Lubricative coating film Higher

3 50 th Anniversary CVD Coated Grade NC9100 Series M Common Problems when Machining Stainless Steel Sheared chips impact edges repeatedly and cause edge damage. Difficult chip breakage leads to built-up edge, work hardening, and promotes excessive notch wear. 1. Built-up edge 2. Notch wear Low heat conductivity in stainless steel machining involves high heat and shear chips, all of which are concentrated on the edge The NC9100 series shows improved surface finish compared to the existing coating film NC9100 Series ( / / ) Development Excellent coating film for medium/rough turning of stainless steel Optimized substrate for different speeds, feeds, and degrees of interruption Lubricative coating layer to prevent built-up edge Ra 0.16 μm Ra 0.79 μm Cutting speed, vc(sfm) Grade lineup [ NC9100 Series ] [ Existing coating ] Continuous General Interrupted 1 Top coat with higher welding resistance 2 Alumina layer for high speed machining 3 MT CVD-TiCN layer with higher chipping resistance 4 High toughness substrate optimal for all continuous/low or high interrupted machining Improved chipping resistance and high toughness substrate Reduces notch wear Lubricative coating film Higher welding resistance Development Effects 1. Inhibited built-up edge and blade damage 2. Inhibited notch wear and relief surface wear [ (M25) ] [ (M25) ] [ (M35) ] [ (M35) ] / / 03

/ / Chip Breaker (For medium ) M The 1 st recommended chip breaker for stainless steel machining Sharp performance and insert toughness achieved by the use of a dual land Wide chip pockets for stable

3 0.1 8 18 Dual Land Balance between requirements of sharp and tough edges Sharp edge for high speed machining Prevents chipping in interrupted machining Wide Chip Pocket Stable chip evacuation at

4 / / Chip Breaker (For medium ) M The 1 st recommended chip breaker for stainless steel machining Sharp performance and insert toughness achieved by the use of a dual land Wide chip pockets for stable chip evacuation at high feeds/depths of cut Chip Breaker Features Variable Land Excellent chip control and sharp at low depths of cut Delays crater wear Prevents plastic deformation Dual Land Balance between requirements of sharp and tough edges Sharp edge for high speed machining Prevents chipping in interrupted machining Wide Chip Pocket Stable chip evacuation at high speeds/feeds Improved surface finishes by reduced workpiece scratches caused by work-hardened chips at high depths of cut Prevents built-up edge Low Cutting Force at 100º corner 100º corner angle is recommended for roughing outer diameters and preventing burrs Reduced load for high feed machining [Chip Breaker Code ] M M range P : Steel M : Stainless Steel K : Cast iron range F : Finish M : R : Continuous General Interrupted Range Cutting Cutting Depth of cut, ap(inch) Recommended Cutting Range Feed, fn(ipr) Recommended Cutting Conditions Recommended Chip breaker Depth of cut, ap(inch) Feed, fn(ipr) Min. Recommended Max. Min. Recommended Max KORLOY TECH-NEWS

50 th Anniversary Chip Breaker (For rough ) M The 1 st recommended chip breaker for rough and interrupted machining of stainless steel Prevents notch wear and burrs at high feeds and depths of cut

5 50 th Anniversary Chip Breaker (For rough ) M The 1 st recommended chip breaker for rough and interrupted machining of stainless steel Prevents notch wear and burrs at high feeds and depths of cut Reduced force extends tool life in high feed machining Chip Breaker Features Variable Land Excellent chip control and sharp at low depths of cut Delays crater wear Prevents plastic deformation Wide Land & Gentle Front Angle Sharp edges and wide land reduce force Reduced burrs Dispersed load enables higher toughness Stepped Design Stepped design makes chip evacuation easier Smooth chip evacuation prevents plastic deformation Low Cutting Force at 100º corner 100º corner angle is recommended for roughing outer diameters and preventing notch wear Stepped design reduces load [Chip Breaker Code ] R M range P : Steel M : Stainless Steel K : Cast iron range F : Finish M : R : Continuous General Interrupted Range Cutting Cutting Depth of cut, ap(inch) Recommended Cutting Range Feed, fn(ipr) Recommended Cutting Conditions Recommended Chip breaker Depth of cut, ap(inch) Feed, fn(ipr) Min. Recommended Max. Min. Recommended Max / / 05

6 / / Cutting Performance A gentle slope of chip breaker minimizes built-up edge Improved surface finish and chip control from inhibited built-up edges A wide land and rake angle of chip breaker disperse loads and prevents notch wear Improved surface finish and reduced burrs by preventing notch wear The chip breaker promptly dissipates the concentrated edge heat to prevent plastic deformation during machining Less vibration and load due to reduced plastic deformation The wide land and rake angle of the chip breaker improves performance and prevents burrs Improved chip control improves surface finish and extends tool life [ () ] Built-up edge 405 (Ferrite) vc(sfm) = 590, fn(ipr) = 0.012, ap(inch) = 0.12, wet Insert CNMG432- () Holder PCLNL16-4D Notch wear 410 (Martensite) vc(sfm) = 492, fn(ipr) = 0.01, ap(inch) = 0.12, wet Insert CNMG432- () Holder PCLNL16-4D [ () ] Plastic deformation 316 (Austenite) vc(sfm) = 656, fn(ipr) = 0.014, ap(inch) = 0.08, dry Insert CNMG432- () Holder PCLNL16-4D [ () ] Burr Duplex vc(sfm) = 394, fn(ipr) = 0.008, ap(inch) = 0.08, dry Insert CNMG432- () Holder PCLNL16-4D [ () ] Reduced built-up edge Reduced notch wear Reduced load Improved surface finish [ ] [ ] [ ] [ ] Size of built-up edge(inch) Size of notch wear(inch) Size of burr(inch) Size of plastic deformation(inch) Cutting time(sec) Cutting time(sec) Cutting time(sec) Cutting time(sec) 06 KORLOY TECH-NEWS

7 50 th Anniversary Recommended Grade and Chip Breaker per Stainless Steel Type Machinability is related to the type of stainless steel. The Ferritite and the Martensite types are machinable. The Duplex and PH types are the most difficult type to machine. Austenitic Stainless Steel Heavy work hardening (Edge chipping accelerates wear) Poor heat conductivity (Three times lower than carbon steel Increase in area temperature) High ductility (Strong chance for deformation at high temperature Long chips or tough chips occurs) Type : 303, 304, 316, etc. Grade Cutting speed(sfm) Continuous Low High interrupted interrupted - Ferritic / Martensitic Stainless Steel Strong chance for work hardening at high temperature (Crater wear is promoted) High toughness through tempering and annealing (Long chips are easily created) High carbon contents increase its hardness) Type : 403, 410, 416, 440, etc. Grade 164 Cutting speed(sfm) Continuous Low High interrupted interrupted Duplex Stainless Steel Its presence of both austenitic and ferritic fine matrix requires both types of characteristics for each material s attribute. One of the most hard to cut stainless steels as its higher yield strength makes chip control harder than the Austenite Type : 2304, 2205, 2507 Grade 164 Cutting speed(sfm) Continuous Low High interrupted interrupted Precipitation Hardened(PH) Stainless Steel High tensile strength (2 times higher than other stainless steels) increases load Low heat conductivity cause edge damage from high temp chips Type : S17400, S17700 Grade Cutting speed(sfm) Continuous Low High interrupted interrupted / / 07

/ / High hardness (High heat) Grade Lineup Cutting speed, vc(sfm) Built-up edge PC8105 PC8110 PC8115 Chemical wear PC9030 Plastic deformation CVD coated grade PVD coated grade Feed, fn(ipr)

7 PVD coated grade M35 7.7 M30 656 3.4 M35 4.

8 / / High hardness (High heat) Grade Lineup Cutting speed, vc(sfm) Built-up edge PC8105 PC8110 PC8115 Chemical wear PC9030 Plastic deformation CVD coated grade PVD coated grade Feed, fn(ipr) Continuous General Interrupted High toughness Breakage Chip Removal Volume per Cutting Speed Grade ISO PVD coated grade M35 Cutting speed (sfm) Chip removal volume(in 3 ) 12.9 M M PVD coated grade M M M Higher productivity than PVD grades at high speeds over 150m/min The NC9100 Series CVD coated grades are differentiated from PVD grades by their application range Compared to PVD coated grades with similar substrates, CVD coated ones have longer tool life over the PVD, in large scale rough machining at high speeds or in high temperature conditions The / / grades are provided according to the degree of interruption or vibration during machining Turning Grade Comparison Chart for Stainless Steel ISO KORLOY A B C D E F G M15 TT9215 GC2015 CA6515 MC7015 TM2000 WAM10 AC610M M25 TT9225 GC2025 CA6525 MC7025 TM4000 WAM20 AC6030M M35 TT9235 GC235 - US735 - WAM30 AC630M Turning Chip Breaker Comparison Chart for Stainless Steel (Negative type) Main KORLOY Sub A B C D E F G GS ET MR MU M5 NR7 MU HS EM MS MF3 NM4 GU Finish - HA EA MF - LM MF1 NS4 SU Turning Chip Breaker Comparison Chart for Stainless Steel (Positive type) KORLOY A B C D E F G MP PC, MT HQ MV MF2 PS5 MU Finish VL FA MF MQ FV FF1 PF4 SU 08 KORLOY TECH-NEWS

9 50 th Anniversary Examples Hydraulics part (Mechanical seal) () A (M25) 304 vc(sfm) = 459, fn(ipr) = 0.011, ap(inch) = 0.12, wet Insert CNMG432- () Holder S32S-PCLCR-4 9ea/edge 5ea/edge 80% Stable chip evacuation reduces load and plastic deformation, which increases tool life 80% longer tool life than competitor A (M25) Valve part (Piston valve) () B (M25) 304 (Solution treatment) vc(sfm) = 459, fn(ipr) = 0.011, ap(inch) = 0.12, wet Insert CNMG432- () Holder DCLNL16-4D 5ea/edge 2ea/edge 150% Dual land design combines sharp performance and high toughness in high hardness machining 150% longer tool life than competitor B (M25) Wind power/offshore plant part (Flange) () C (M25) 317L (Outer diameter roughing) vc(sfm) = 492, fn(ipr) = 0.012~0.02, ap(inch) = 0.16~0.24, wet Insert CNMG544- () Holder PCLNR20-5D 50% 15ea/edge 10ea/edge 50% longer tool life than competitor C (M25) Wind power/offshore plant part (Flange) () D (M25) 317L (Inner diameter finishing) vc(sfm) = 574, fn(ipr) = 0.018, ap(inch) = ~0.039, wet Insert SNMG644- () Holder S50U-PSLNR-6 12ea/edge 8ea/edge 50% 50% longer tool life than competitor D (M25) / / 09

/ / Examples Wind power plant part (Flange) () E (M35) 316 vc(sfm) = 574, fn(ipr) = 0.012~0.031, ap(inch) = 0.

E (M35) Plant part (Flange) () F (M25) Super Duplex vc(sfm) = 328, fn(ipr) = 0.02, ap(inch) = 0.

(M25) Duplex vc(sfm) = 394, fn(ipr) = 0.016, ap(inch) = 0.

10 / / Examples Wind power plant part (Flange) () E (M35) 316 vc(sfm) = 574, fn(ipr) = 0.012~0.031, ap(inch) = 0.02, wet Insert TNMG434- () Holder PTFNR16-4D 150% 5ea/edge 2ea/edge Extended tool life from improved chipping resistance and reduced built-up edge 150% longer tool life than competitor E (M35) Plant part (Flange) () F (M25) Super Duplex vc(sfm) = 328, fn(ipr) = 0.02, ap(inch) = 0.12, wet Insert CNMG544- () Holder PCLNR20-5D 12ea/edge 8ea/edge 50% Extended tool life from inhibited wear and chipping 50% longer tool life than competitor F (M25) Hydraulics part () G (M25) Duplex vc(sfm) = 394, fn(ipr) = 0.016, ap(inch) = 0.24, wet Insert CNMG544- () Holder DCLNR20-5D 7ea/edge 5ea/edge 40% Improved blade stability compared to competitor s 40% longer tool life than competitor G (M25) Machinery part () VM (PC9030) 304 vc(sfm) = 590, fn(ipr) = 0.016, ap(inch) = 0.059, wet Insert CNMG432- () Holder DCLNL16-4D 6ea/edge 3ea/edge 100% Extended tool life from superior resistance to built-up edge and wear compared to PC % higher productivity than PC9030 under higher conditions 10 KORLOY TECH-NEWS

11 50th Anniversary Available Stock [Negative type] Insert shape Designation CNMG MP 432-MP 433-MP 434-MP 542-MP 543-MP 644-MP DNMG MP 432-MP 433-MP 441-MP 442-MP 443-MP Stock Insert shape Designation SNMG MP 432-MP 433-MP TNMG MP 332-MP 333-MP 431-MP 432-MP 433-MP VNMG 331-MP 332-MP WNMG MP 432-MP 433-MP Stock Available Stock [Positive type] Insert shape Designation CCMT VL VL VL MP MP MP MP MP DCMT VL VL VL MP MP MP MP MP MP SCMT VL VL MP MP 432-MP Stock Insert shape Designation TCMT VL VL 731-MP 732-MP MP MP MP MP MP MP TPMT 221-VL VBMT 331-VL 332-VL 333-VL 331-MP 332-MP 333-MP VCMT 331-VL 332-VL 331-MP 332-MP 333-MP Stock / / 11

Head Office Holystar B/D, 1350, Nambusunhwan-ro, Geumcheon-gu, Seoul, 08536, Korea Tel : +82-2-522-3181 Fax : +82-2-522-3184 Web : www. korloy.com E-mail : export@korloy.

12 Head Office Holystar B/D, 1350, Nambusunhwan-ro, Geumcheon-gu, Seoul, 08536, Korea Tel : Fax : Web : www. korloy.com export@korloy.com Cheongju Factory 55, Sandan-ro, Heungdeok-gu, Cheongju-si, Chungcheongbuk-do, 28589, Korea Tel : Fax : Jincheon Factory 54, Gwanghyewonsandan 2-gil, Gwanghyewon-myeon, Jincheon-gun, Chungcheongbuk-do, 27807, Korea Tel : Fax : R & D Institute Cheongju 55, Sandan-ro, Heungdeok-gu, Cheongju-si, Chungcheongbuk-do, 28589, Korea Tel : Fax : R & D Institute Seoul Holystar B/D, 1350, Nambusunhwan-ro, Geumcheon-gu, Seoul, 08536, Korea Tel : Fax : Maple Avenue, Torrance, CA 90503, USA Tel : Toll Free : Fax : sales@korloy.us Gablonzer Str , Oberursel, Germany Tel : Fax : sales@korloyeurope.com Plot NO.415, Sector 8, IMT Manesar, Gurgaon , Haryana, INDIA Tel : Fax : sales.kip@korloy.com Av. Aruana 280, conj.12, WLC, Alphaville, Barueri, CEP , SP, Brasil Tel : vendas@korloy.com Ground Dongjing Road 56 District Free Trade Zone. Qingdao, China Tel : Fax : kycpjh@korloy.com TN45-EI

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page 1end C 0.0.2 ma Cr 14.5~16.5 Co 2.5 max Iron 4~7 Mn 1 max Mo 15 ~ 17 Ni Balance P 0.03 max Si 0.08 max S 0.03 max W 3 ~ 4.5 V 0.35 max 8.89g/cm 3 Multipurpose corrosion resistance of NickelMolybdenumChrome.