Sumitomo General Catalog 2025-2026

Chipbreaker and Grade Selection Guide for Turning Steel

Steel

Grades

T1000A / T1500A / T1500Z / T2500Z

T1000A : High-hardness cermet with outstanding wear resistance and toughness. Creates high dimensional accuracy for continuous steel machining or finishing of powdered metal or cast iron. T1500A : A general-purpose cermet made from hard grains with different grain sizes, delivering functionality that provides an excellent balance of wear resistance and toughness, along with good surface finish quality. T1500Z : Incorporates Brilliant Coat ® PVD coating with excellent lubricity to provide better wear resistance and consistent surface finishes in low-speed cutting applications such as machining of small products or low carbon steel. T2500Z : Features Brilliant Coat ® PVD coating along with optimized substrate for doubling breakage resistance in moderate to interrupted cutting applications.

A

Performance

T1000A

● Wear Resistance

● Fracture Resistance

Provides excellent fracture and wear resistance.

Exhibits excellent wear resistance.

.002 .004 .006 .008

Competitor’s Product A (Cermet P10)

T1000A

Conventional Tool T1000A

Competitor’s Product B (Cermet P10) Conventional Tool

5

10

15

20

25

0

1,000 2,000 3,000 4,000

0

Cutting Time (min)

No. of Impacts

5,000

Part Material: 4135 Insert: CNMG432ESU Cutting Conditions: v c =1,050 SFM, f=0.008 IPR a p =.060”, Dry

Part Material: 4135 Insert: CNMG432ESU Cutting Conditions: v c =755 SFM, f=0.008 IPR, a p =.040”, Wet

T1500A

● Wear Resistance

● Machined Surface Quality

Beautiful glossy surface finishes when facing.

.008

Conventional Tool

.006

Competitor’s Product C (Cermet P20)

.004

T1500A 1.5 times better wear resistance!

.002

5

10

15

20

25

0

T1500A

Competitor’s Product D (Cermet P20)

Cutting Time (min)

Part Material: 4135 Insert: CNMG432ESU Cutting Conditions: v c =755 SFM, f=0.008 IPR, a p =.040”, Wet

Part Material: 1045 Insert: DNMG431ELU Cutting Conditions: v c =490 SFM, f=0.005 IPR, a p =0.004”, Wet

T1500Z

● Wear Resistance

● Machined Surface Quality

.008

Beautiful surface finishes even at lower cutting speeds.

Competitor’s Product E (Coated Cermet P20)

Reduces cloudy finish on machined surfaces.

Conventional Tool

.006

.004

.002

T1500Z

0

Cutting Time (min) 10 20 30 40 50

T1500Z

T1500Z

Competitor’s Product F (Coated Cermet P20)

Conventional Tool Competitor’s Product G (Coated Cermet P20)

Part Material: 4135 Insert: CNMG432ESU Cutting Conditions: v c =755 SFM, f=0.008 IPR, a p =.040”, Wet

Part Material: 8620H Insert: DNMG432ESU Cutting Conditions: v c =490 SFM, f=0.008 IPR, a p =.040”, Wet

Part Material: STKM13A Insert: CNMG432ESU Cutting Conditions: v c =330 SFM, f=0.006 IPR, a p =.040”, Wet

Recommended Cutting Conditions

Cutting Conditions

Cutting Process

Min. - Max.

Part Material

Chipbreaker

Grade

Depth of Cut a p (inch)

Cutting Speed v c (SFM)

Feed Rate f (IPR)

Fine Finishing EFB / EFL T1500Z Finishing EFE / ELU T3000Z

.008 - .040 .012 - .070

.002 - .010 .003 - .015 .002 - .010 .003 - .015 .006 - .020 .002 - .010 .003 - .015 .006 - .020

490 - 1500 490 - 1500 330 - 1200 330 - 1200 330 - 1200 165 - 1000 165 - 1000 165 - 1000

Mild Steel (SS400 and others) Carbon Steel Alloy Steel (S45C, SCM435, and others) Hard Steel Alloy Steel (SCM440H and others)

Fine Finishing EFB / EFA T1500A .008 - .040 Finishing EFE / ESU T1500A .020 - .080

Medium EGU T1500Z

.030 - .160

Fine Finishing EFB / EFA T1000A .008 - .040

Finishing EFE / ESU T1500Z Medium EGU T1500Z

.020 - .080 .030 - .160

A11

Made with FlippingBook flipbook maker