|
钢类 |
等级 |
化学成份(%) | |||||||
|
C |
Mn |
Si |
P |
S |
ALs |
Nb |
V | ||
|
一般强度钢 |
A |
≤0.22 |
≥2.5C |
0.10-0.35 |
≤0.040 |
≤0.040 |
|
|
|
|
一般强度钢 |
B |
≤0.21 |
0.60-1.00 |
0.10-0.35 |
≤0.040 |
≤0.040 |
|
|
|
|
一般强度钢 |
D |
≤0.21 |
0.60-1.10 |
0.10-0.35 |
≤0.040 |
≤0.040 |
|
|
|
|
一般强度钢 |
E |
≤0.18 |
0.70-1.20 |
0.10-0.35 |
≤0.040 |
≤0.040 |
≥0.015 |
|
|
|
高强度钢 |
AH32 |
≤0.18 |
0.70-1.60 |
0.10-0.50 |
≤0.040 |
≤0.040 |
≥0.015 |
|
|
|
高强度钢 |
DH32 |
≤0.18 |
0.90-1.60 |
0.10-0.50 |
≤0.040 |
≤0.040 |
≥0.015 |
|
|
|
高强度钢 |
EH32 |
≤0.18 |
0.90-1.60 |
0.10-0.50 |
≤0.040 |
≤0.040 |
≥0.015 |
|
|
|
高强度钢 |
AH36 |
≤0.18 |
0.70-1.60 |
0.10-0.50 |
≤0.040 |
≤0.040 |
≥0.015 |
0.015-0.050 |
0.30-0.10 |
|
高强度钢 |
DH36 |
≤0.18 |
0.90-1.60 |
0.10-0.50 |
≤0.040 |
≤0.040 |
≥0.015 |
0.015-0.050 |
0.30-0.10 |
|
高强度钢 |
EH36 |
≤0.18 |
0.90-1.60 |
0.10-0.50 |
≤0.040 |
≤0.040 |
≥0.015 |
0.015-0.050 |
0.30-0.10 |