
钢级
|
屈服强度Rel,MPa
|
抗拉强度Rm,MPa
|
伸长率A,%
|
冲击功,AKV,J
|
||
0℃
|
-20℃
|
-40℃
|
||||
Q345C
|
≥345
|
470~630
|
≥22
|
≥34
|
|
|
Q345D
|
≥345
|
470~630
|
≥22
|
|
≥34
|
|
Q345E
|
≥345
|
470~630
|
≥22
|
|
|
≥27
|