P355GH和P355NH的区别订货137**8188**0376舞钢
化学成分的区别
钢种 |
%质量 |
||||||||||||||||
牌号 |
数字 |
C |
Si, |
Mn |
P |
S |
Al 全 |
N |
Cr |
Cu |
Mo |
Nb |
Ni |
Ti |
V |
Nb+Ti+ V |
|
P355GH |
1.0473 |
0.10-0.22 |
≤ 0.60 |
1.10-1.70 |
≤ 0.025 |
≤ 0.015 |
≥ 0.020 |
≤ 0.012d |
≤ 0.30 |
≤ 0.30 |
≤ 0.08 |
≤0.020 |
≤0.30 |
≤0.03 |
≤0.02 |
≤0.70 |
|
P355NH |
1.0565 |
≤0.18 |
≤ 0.50 |
1.10~1.70 |
≤ 0.025 |
≤ 0.015 |
≥ 0.020c,d |
≤ 0.012 |
≤ |
≤ |
≤ |
≤0.05 |
≤0.05 |
≤0.03 |
≤0.10 |
≤0.12 |
|
c:如果添加 Nb、Ti、或 V 氮固定元素,则全铝(即 Altotal)含量可以低于最小值。d:如果仅用铝固定氮,则Al/N≥2 应适用。 |