鋼種

%質量

牌號

數字

C

Si,

Mn

P

S

Al 全

N

Cr

Cu b

Mo

Nb

Ni

Ti

P235GH

1.0345

≤ 0.16

≤ 0.35

0.60C-

1.20

≤ 0.025

≤ 0.015

≥ 0.020

≤ 0.012d

≤ 0.30

≤ 0.30

≤ 0.08

≤ 0.020

≤ 0.30

≤ 0.03

P265GH

1.0425

≤ 0.20

≤ 0.40

0.80C-

1.40

≤ 0.025

≤ 0.015

≥ 0.020

≤ 0.012d

≤ 0.30

≤ 0.30

≤ 0.08

≤ 0.020

≤ 0.30

≤ 0.03

P295GH

1.0481

0.08-

0.20

≤ 0.40

0.90C-

1.50

≤ 0.025

≤ 0.015

≥ 0.020

≤ 0.012d

≤ 0.30

≤ 0.30

≤ 0.08

≤ 0.020

≤ 0.30

≤ 0.03

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

16Mo3

1.5415

0.12-

0.20

≤ 0.35

0.40-

0.90

≤ 0.025

≤ 0.010

e

≤ 0.012

≤ 0.30

≤ 0.30

0.25-

0.35

_

≤ 0.30

_