|
质量等级
|
厚度/
mm
|
C
|
Si
|
Mn
|
P
|
S
|
|
B
|
6～100
|
≤0.20
|
≤0.55
|
≤1.60
|
≤0.025
|
≤ 0.015
|
|
C
|
6～100
|
≤0.20
|
≤0.55
|
≤1.60
|
≤0.025
|
≤0.015
|
|
D
|
6～100
|
≤0.18
|
≤0.55
|
≤1.60
|
≤0.020
|
≤0.015
|
|
E
|
6～100
|
≤0.18
|
≤0.55
|
≤1.60
|
≤0.020
|
≤0.015
|
|
厚度
|
屈服强度 ReH/（MPa）
|
|
6-16
|
≥345
|
|
>16-35
|
345-465
|
|
>35-50
|
335-455
|
|
>50-100
|
325-445
|
898995850
