钢板牌号
|
C
|
Si
|
Mn
|
P
|
S
|
Alt
|
N
|
0.08-0.20
|
≤0.4
|
0.90-1.50
|
≤0.025
|
≤0.015
|
≥0.02
|
≤0.012
|
|
Q295HR
|
Cr
|
Cu
|
Mo
|
Nb
|
Ni
|
Ti
|
V
|
≤0.3
|
≤0.018
|
≤0.08
|
≤0.02
|
≤0.3
|
≤0.03
|
≤0.02
|
Q295HR力学性能
|
|||||
钢板牌号
|
屈服强度
|
抗拉强度
|
断后伸长率%
|
冲击值AKV(0℃)
|
180°弯曲试验
|
Q295HR
|
220-295
|
430-580
|
21
|
34
|
d=2a
|