GB/T8162執(zhí)行標準為哪種鋼管-GB/T8163特點有哪些-245*18mm16mn鋼管廠
牌號 |
化學(xué)成分(質(zhì)量分數(shù))(%) | |||||||
C
≤ |
Si
≤ |
Mn |
P
≤ |
S
≤ |
Nb |
Ti |
V | |
Q345(16Mn)
低合金高強度結(jié)構(gòu)鋼 |
0.20% |
0.55% |
1.00%-1.60 |
0.045% |
0.045% |
0.015%-0.060% |
0.02%-0.20% |
0.02%-0.15% |
|