板 厚
|
C
|
Si
|
Mn
|
P
|
S
|
|
標(biāo)準(zhǔn)
|
≤25mm
|
≤0.31
|
0.15~0.40
|
≤1.20
|
≤0.035
|
≤0.035
|
>25~50mm
|
≤0.33
|
|||||
>50~100mm
|
≤0.35
|
|||||
>100~200mm
|
≤0.35
|
厚度mm
|
室 溫 拉 伸
|
325℃拉伸
|
室溫沖擊
(橫向)
AKVJ
|
|||||
ós
MPa
|
ób
MPa
|
ㄜ50
MPa
|
ㄜ200
MPa
|
冷彎
180度
|
ó0.2
MPa
|
ób
MPa
|
||
≤50
|
≥260
|
485~620
|
≥21
|
≥17
|
d=2a
|
≥190
|
≥440
|
≥27
|
>50~100mm
|
d=2.5a
|
|||||||
>100~200mm
|
d=3a
|