Standards: Grade:
C: Mn: Cr: Mo: Ni: V:
 
Standards Grade C Si Mn Cr Mo Ni V W Al Co Ti Cu
GB/T 3077-1999 20Mn2 0.17
-0.24
0.17
-0.37
1.40
-1.80

-

-

-

-

-

-

-

-

-
GB/T 3077-1999 30Mn2 0.27
-0.34
0.17
-0.37
1.40
-1.80

-

-

-

-

-

-

-

-

-
GB/T 3077-1999 35Mn2 0.32
-0.39
0.17
-0.37
1.40
-1.80

-

-

-

-

-

-

-

-

-
GB/T 3077-1999 40Mn2 0.37
-0.44
0.17
-0.37
1.40
-1.80

-

-

-

-

-

-

-

-

-
GB/T 3077-1999 45Mn2 0.42
-0.49
0.17
-0.37
1.40
-1.80

-

-

-

-

-

-

-

-

-
GB/T 3077-1999 50Mn2 0.47
-0.55
0.17
-0.37
1.40
-1.80

-

-

-

-

-

-

-

-

-
GB/T 3077-1999 20MnV 0.17
-0.24
0.17
-0.37
1.30
-1.60

-

-

-
0.07
-0.12

-

-

-

-

-
GB/T 3077-1999 27SiMn 0.24
-0.32
1.10
-1.40
1.10
-1.40

-

-

-

-

-

-

-

-

-
GB/T 3077-1999 35SiMn 0.32
-0.40
1.10
-1.40
1.10
-1.40

-

-

-

-

-

-

-

-

-
GB/T 3077-1999 42SiMn 0.39
-0.45
1.10
-1.40
1.10
-1.40

-

-

-

-

-

-

-

-

-
GB/T 3077-1999 20SiMn2MoV 0.17
-0.23
0.90
-1.20
2.20
-2.60

-
0.30
-0.40

-
0.05
-0.05

-

-

-

-

-
GB/T 3077-1999 25SiMn2MoV 0.22
-0.28
0.90
-1.20
2.20
-2.60

-
0.30
-0.40

-
0.05
-0.05

-

-

-

-

-
GB/T 3077-1999 37SiMn2MoV 0.33
-0.39
0.60
-0.90
1.60
-1.90

-
0.40
-0.50

-
0.05
-0.05

-

-

-

-

-
GB/T 3077-1999 40B 0.37
-0.44
0.17
-0.37
0.60
-0.90

-

-

-

-

-

-

-

-

-
GB/T3077-1999 45B 0.42
-0.49
0.17
-0.37
0.60
-0.90

-

-

-

-

-

-

-

-

-
GB/T3077-1999 50B 0.47
-0.55
0.17
-0.37
0.60
-0.90

-

-

-

-

-

-

-

-

-
GB/T3077-1999 40MnB 0.37
-0.44
0.17
-0.37
1.10
-1.40

-

-

-

-

-

-

-

-

-
GB/T3077-1999 45MnB 0.42
-0.49
0.17
-0.37
1.10
-1.40

-

-

-

-

-

-

-

-

-
GB/T3077-1999 20MnMoB 0.16
-0.22
0.17
-0.37
0.90
-1.20

-
0.20
-0.30

-

-

-

-

-

-

-
GB/T3077-1999 15MnVB 0.12
-0.18
0.17
-0.37
1.20
-1.60

-

-

-
0.07
-0.12

-

-

-

-

-
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