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Q390
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化学成分:
等级
C
Mn
Si
P
S
V
Nb
Ti
Al
Cr
Ni
A
≤0.20
1.00～1.60
≤0.55
≤0.045
≤0.045
0.02～0.20
0.015～0.060
0.02～0.20
-
≤0.30
≤0.70
B
≤0.20
1.00～1.60
≤0.55
≤0.040
≤0.040
0.02～0.20
0.015～0.060
0.02～0.20
-
≤0.30
≤0.70
C
≤0.20
1.00～1.60
≤0.55
≤0.035
≤0.035
0.02～0.20
0.015～0.060
0.02～0.20
≥0.015
≤0.30
≤0.70
D
≤0.20
1.00～1.60
≤0.55
≤0.030
≤0.030
0.02～0.20
0.015～0.060
0.02～0.20
≥0.015
≤0.30
≤0.70
E
≤0.20
1.00～1.60
≤0.55
≤0.025
≤0.025
0.02～0.20
0.015～0.060
0.02～0.20
≥0.015
≤0.30
≤0.70
 
 
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