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標(biāo)準(zhǔn)

牌號

化學(xué)成分

C

Si

Mn

P、S

Cu

Ni

Mo

Cr

V

GB18248

37Mn

0.34-0.40

0.10-0.30

1.35-1.65

≤0.030

≤0.20

≤0.30

/

≤0.30

/

34Mn2V

0.30-0.37

0.17-0.37

1.40-1.75

≤0.030

≤0.20

≤0.30

/

≤0.30

0.07-0.12

30CrMo

0.26-0.34

0.17-0.37

0.40-0.70

≤0.030

≤0.20

≤0.30

0.15-0.25

0.80-1.10

/

35CrMo

0.32-0.40

0.17-0.37

0.40-0.70

≤0.030

≤0.20

≤0.30

0.15-0.25

0.80-1.10

/

JIS G3429

STH11

≤0.50

0.10-0.35

≤1.80

≤0.035

/

/

/

/

/

STH12

0.30-0.41

0.10-0.35

1.35-1.70

≤0.030

/

/

/

/

/

STH21

0.25-0.35

0.15-0.35

0.40-0.90

≤0.030

/

≤0.25

0.15-0.30

0.80-1.20

/

STH22

0.33-0.38

0.15-0.35

0.40-0.90

≤0.030

/

≤0.25

0.15-0.30

0.80-1.20

/