Sumitomo General Catalog 2025-2026

Ceramic

Superb wear resistance enables ultra-high-speed machining. Sumitomo Electric Hardmetal's Advanced Ceramic utilises a special process to produce extremely tough grades. This new development permits ultra-high-speed cutting of cast iron, heat-resistant alloy, and ultra-hard rolled material with stability.

A

Grade Map

For Turning

High- Speed

Finishing to Light Medium Rough to Heavy

For Turning

— 01

10

20

30

40

SN2000K

Cast Iron

WX1500

WX2000

Exotic Alloy

SN1000S

NB150H

NB90S

Hardened Steel

Characteristic Values

For Turning

Hardness (HRA)

Main Coating Components

Coating Thickness (μm)

Grade

TRS (GPa)

Characteristics

Class

SN2000K

94.9

1.2

— Contains Si 3 N 4 . Suitable for medium to finishing of cast iron.

Cast Iron

Cold-pressed Whisker reinforced ceramic for high efficiency machining of hardened steels, and Ni and Co-based alloys Enhanced with SiC whiskers. For heat-resistant alloy and ultra-hard roll cutting.

WX1500

94.4

WX2000

90.0

1.2

Exotic Alloy

SN1000S

93.0

0.76

— SiAlON grade for high speed machining of Nickel-based alloys. Superior toughness

Al2O2+TICN Execellent wear resistance. The best choice for machining alloy steel and hardened steel

NB150H

96.0

4.5

Hardened Steel

Ultra-strong. Contains Al2O3 and ZX Coat. Continuous low-speed turning of hardened steel.

NB90S

95.0

1.0

TiAlN

2

A36

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