C

Si

Mn

P

S

Cr

Mo

W

V

1.3343

0.86-0.94

≤0.45

≤0.40

≤0.030

≤0.030

3.80-4.50

4.70-5.20

5.90-6.70

1.70-2.10

M2

0.78-0.88

0.20-0.45

0.15-0.40

≤0.030

≤0.030

3.75-4.50

4.50-5.50

5.50-6.75

1.75-2.20

W6Mo5Cr4V2

0.80-0.90

0.20-0.45

0.15-0.40

≤0.030

≤0.030

3.80-4.40

4.50-5.50

5.50-6.75

1.75-2.20

SKH9

0.80-0.90

≤0.45

≤0.45

0.03

0.01

3.80-4.50

4.50-5.50

5.50-6.70

1.60-2.20