GB/T

ASTM

JIS

DIN

Chemical Composition

C

Mn

Sr

P

S

Cr

V

W

Mo

Co

W1BCr4V

T1

SKH2

HS18-0-1

0.73~0.83

0.10~0.40

0.20~0.40

≤0.030

≤0.030

3.80~4.50

1.00~1.20

17.20~18.70

W2Mo8Cr4V

M1

SKH50

HS1-8-1

0.77~0.87

≤0.40

≤0.70

≤0.030

≤0.030

3.50~4.50

1.00~1.40

1.40~2.00

8.00~9.00

W2Mo9Cr4V2

M7

SKH58

HS2-9-2

0.95~1.05

0.15~0.40

≤0.70

≤0.030

≤0.030

3.50~4.50

1.75~2.20

1.50~2.10

8.20~9.20

W6Mo5Cr4V2

M2

SKH51

HS6-5-2

0.80~0.90

0.15~0.40

0.20~0.45

≤0.030

≤0.030

3.80~4.40

1.75~2.20

5.50~6.75

4.50~5.50

W6Mo6Cr4V2

M3

SKH52

HS6-5-2

1.00~1.10

≤0.40

≤0.45

≤0.030

≤0.030

3.80~4.50

2.30~2.60

5.90~6.70

5.50~6.50

W6Mo5Cr4V3

M3

SKH53

HS6-5-3

1.15~1.25

0.15~0.40

0.20~0.45

≤0.030

≤0.030

3.80~4.50

2.70~3.20

5.90~6.70

4.70~5.20

W6Mo5Cr4V4

M4

SKH54

HS6-5-4

1.25~1.40

0.15~0.40

0.20~0.45

≤0.030

≤0.030

3.75~4.75

3.75~4.50

5.25~6.50

4.25~5.50

W12Cr4V5Co5

T15

SKH10

1.50~1.60

0.15~0.40

0.15~0.40

≤0.030

≤0.030

3.75~5.00

4.50~5.25

11.75~13.00

4.75~5.25

W6Mo5Cr4V2Co5

SKH55

0.87~0.95

0.15~0.40

0.20~0.45

≤0.030

≤0.030

3.80~4.50

1.70~2.10

5.90~6.70

4.70~5.20

4.50~5.00

W6Mo5Cr4V3Co8

SKH40

1.23~1.33

≤0.40

≤0.70

≤0.030

≤0.030

3.80~4.50

2.70~3.20

5.90~6.70

4.70~5.30

8.00~8.80

W7Mo4Cr4V2Co

M41

1.05~1.55

0.20~0.60

0.15~0.50

≤0.030

≤0.030

3.75~4.50

1.75~2.25

6.25~7.00

3.25~4.25

4.75~5.75

W2Mo9Cr4VCo8

M42

SKH59

HS2-9-1-18

1.05~1.15

0.15~0.40

0.15~0.65

≤0.030

≤0.030

3.50~4.25

0.95~1.35

1.15~1.85

9.00~10.00

7.75~8.75

W10Mo4Cr4V3Co10

SKH57

HS10-4-3-10

1.20~1.35

≤0.40

≤0.45

≤0.030

≤0.030

3.80~4.50

3.00~3.50

9.00~10.00

3.20~3.90

9.50~10.50