牌号

化学成分（质量分数）%

C

Si

Mn

P

S

Cr

Mo

Ni

V

其他

P235GH

≤0.16

≤0.35

0.40~1.20

0.03

0.025

≤0.30

≤0.08

≤0.30

≤0.02

P265GH

≤0.02

≤0.40

0.50~1.40

0.03

0.025

≤0.30

≤0.08

≤0.30

≤0.02

Cu≤0.30;

CTCSc="0" numbertype="1" negative="False" hasspace="False" sourcevalue="22" unitname="g">22G2

0.18~0.23

≤0.40

0.30~0.90

0.025

0.015

Al≥0.020;

P355GH

0.10~0.22

≤0.60

1.00~1.70

0.030

0.025

≤0.30

≤0.08

≤0.30

≤0.02

Cr+Cu+Mo+Ni≤0.70

P295GH

0.08~0.20

≤0.40

0.90~1.50

0.03

0.025

≤0.30

≤0.08

≤0.30

≤0.02

19Mn5

0.17~0.22

0.30~0.60

1.00~1.30

0.045

0.045

≤0.30