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直縫焊管

詳細說(shuō)明



 

Product Name

Material

Standard

Specification

Application

ERW steel pipe

20#  Q195  Q215A,B
Q235A,B  Q345A,B,C,D,E

GB/T13793-1992
GB3091-2001

∮32-630*1-30

Apply to structure support, low pressure fluid transport

 

Standard

Steel grade

Chemical composition

C

Mn

Si

Cu

Ni

Cr

Mo

V

P

S

ASTMA106/
ASMESA106

A

≤ 0.25

0.27 ~ 0.93

≥ 0.10

≤ 0.40

≤ 0.40

≤ 0.40

≤ 0.15

≤ 0.08

≤ 0.035

≤ 0.035

B

≤ 0.30

0.29 ~ 1.06

≥ 0.10

≤ 0.40

≤ 0.40

≤ 0.40

≤ 0.15

≤ 0.08

≤ 0.035

≤ 0.035

C

≤ 0.35

0.29 ~ 1.06

≥ 0.10

≤ 0.40

≤ 0.40

≤ 0.40

≤ 0.15

≤ 0.08

≤ 0.035

≤ 0.035

Mechanical property
 

Tensile strength (MPa)

Yield strength (MPa)

A

≥ 330

≥ 205

B

≥ 415

≥ 240

C

≥ 485

≥ 275

 

Note:
①I(mǎi)f the carbon content decreasing by 0.01% on the specified maximum carbon content, the manganese content allowed to increase 0.06% on the specified maximum manganese carbon content.
②Cu+Ni+Cr+Mo+V≤1.00
Dimension tolerance:


Steel pipe

OD(D)

Thickness(S)

Cold drawn pipe

OD

Tolerance

TH

Tolerance

>30~50

+0.3%

≤25

+10%

>50~325

+0.8%


Hot rolled pipe

>6~168

+1.0%

≤25

-10%,+12.5%




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