Grade

Co%

Hardness HRA

Desity g/cm3

Flexural Strength MPa

Wc Grain Size(um)

Application

SK10F

6

94

14.72

3950

0.3-0.4

Fit for Copper and Alumimium,PCB,glass fiber reinfored compasites,braking materials,graphite ,etc.

SK20F

8

93.1

14.65

4000

0.3-0.4

Suit for stainless steels,quenched steels(Hardness>HRC60),Glass Fiber Reinforced composited,especial for high-speed milling and dry milling.

SK20N

8

93.8

14.6

3700

0.3-0.4

Suit for stainless steels,quenched steels(Hardness>HRC60),Glass Fiber Reinforced composited,especial for high-speed milling and dry milling.

SK30N

10%

91.5

14.35

3200

0.8

Strong General purpose,Suit for gray cast iron,cast iron,steel,copper,Aluminium,etc.

SK30F

10%

91.8

14.45

3500

0.6-0.8

Strong General purpose,Suit for gray cast iron,cast iron,steel,copper,Aluminium,etc.

SK30UF

10%

92.1

14.4

3900

0.6

Strong General purpose,Suit for gray cast iron,cast iron,steel,copper,Aluminium,etc.

SK40N

12%

92.3

14.2

4000

0.5-0.6

Suit for High-temperature alloys,stainless steels,Titanium,Quenched steels,Taps,etc.Middle-Speed.

SK40F

12%

92.5

14.1

4100

0.4

Suit for High-temperature alloys,stainless steels,Titanium,Quenched steels,Taps,etc.High Speed,Middle Feed.