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国内阀门材料常用技术标准 低合金高强度结构钢化学成分_阀门标准

国内阀门材料常用技术标准 低合金高强度结构钢化学成分

牌号

质量

等级

化 学 成 分, %

C

Mn

Si

P

S

V Nb Ti

Al

Cr

Ni

Q295

A

B

0.16

0.16

0.08~1.50

0.08~1.50

0.55

0.55

0.045

0.040

0.045

0.040

0.02~0.15

0.02~0.15

0.015~0.060

0.015~0.060

0.02~0.20

0.02~0.20

   
Q345

A

B

C

D

E

0.20

0.20

0.20

0.18

0.18

1.00~1.60

1.00~1.60

1.00~1.60

1.00~1.60

1.00~1.60

0.55

0.55

0.55

0.55

0.55

0.045

0.040

0.035

0.030

0.025

0.045

0.040

0.035

0.030

0.025

0.02~0.15

0.02~0.15

0.02~0.15

0.02~0.15

0.02~0.15

0.015~0.060

0.015~0.060

0.015~0.060

0.015~0.060

0.015~0.060

0.02~0.20

0.02~0.20

0.02~0.20

0.02~0.20

0.02~0.20

0.015

0.015

0.015

Q390

A

B

C

D

E

0.20

0.20

0.20

0.20

0.20

1.00~1.60

1.00~1.60

1.00~1.60

1.00~1.60

1.00~1.60

0.55

0.55

0.55

0.55

0.55

0.045

0.040

0.035

0.030

0.025

0.045

0.040

0.035

0.030

0.025

0.02~0.20

0.02~0.20

0.02~0.20

0.02~0.20

0.02~0.20

0.015~0.060

0.015~0.060

0.015~0.060

0.015~0.060

0.015~0.060

0.02~0.20

0.02~0.20

0.02~0.20

0.02~0.20

0.02~0.20

0.015

0.015

0.015

0.30

0.30

0.30

0.30

0.30

0.70

0.70

0.70

0.70

0.70

Q420

A

B

C

D

E

0.20

0.20

0.20

0.20

0.20

1.00~1.70

1.00~1.70

1.00~1.70

1.00~1.70

1.00~1.70

0.55

0.55

0.55

0.55

0.55

0.045

0.040

0.035

0.030

0.025

0.045

0.040

0.035

0.030

0.025

0.02~0.20

0.02~0.20

0.02~0.20

0.02~0.20

0.02~0.20

0.015~0.060

0.015~0.060

0.015~0.060

0.015~0.060

0.015~0.060

0.02~0.20

0.02~0.20

0.02~0.20

0.02~0.20

0.02~0.20

0.015

0.015

0.015

0.40

0.40

0.40

0.40

0.40

0.70

0.70

0.70

0.70

0.70

Q460

C

D

E

0.20

0.20

0.20

1.00~1.70

1.00~1.70

1.00~1.70

0.55

0.55

0.55

0.035

0.030

0.025

0.035

0.030

0.025

0.02~0.20

0.02~0.20

0.02~0.20

0.015~0.060

0.015~0.060

0.015~0.060

0.02~0.20

0.02~0.20

0.02~0.20

0.015

0.015

0.015

0.70

0.70

0.70

0.70

0.70

0.70

文章来源:中国泵阀网

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