成份
|
廠家
|
C
|
Si
|
Mn
|
P
|
S
|
Cr
|
Mo
|
Ni
|
B
|
CEV
|
商標
|
|
|
|
|
|
|
|
|
|
|
|
NM400
|
舞鋼
|
≤0.25
|
≤0.70
|
≤1.60
|
≤0.025
|
≤0.010
|
≤1.4
|
≤0.50
|
≤1.00
|
≤0.004
|
|
鋼種
|
等級
|
硬度
|
20℃AKV縱向J
|
WNM400
|
A
|
360~430
|
|
WNM400
|
B
|
360~430
|
|