标  准

牌  号

抗拉强度(MPa)

屈服强度(MPa)

ASTM　A106
ASTM SA106

A

≥330

≥205

B

≥415

≥240

C

≥485

≥275

标  准

牌  号

化 学 成 分 Chemical composition limits，%

C

Si

Mn

P

S

Cr

Mo

Cu

Ni

V

ASTM A106
ASTM SA106

A

≤0.25

≥0.10

0.27～0.93

≤0.035

≤0.035

≤0.40

≤0.15

≤0.40

≤0.40

≤0.08

B

≤0.30

≥0.10

0.29～1.06

≤0.035

≤0.035

≤0.40

≤0.15

≤0.40

≤0.40

≤0.08

C

≤0.35

≥0.10

0.29～1.06

≤0.035

≤0.035

≤0.40

≤0.15

≤0.40

≤0.40

≤0.08