Transmission fluid Seamless steel pipe

Standard
GB/T 8163--------- ChinaNational Standard


Purpose:

Used inpetroleum, natural gas and other general fluid transport.


The main production steel grades:

10,20, Q345and so on

Followingconsultations, can also be supply other grades of steel pipe.

 

Mechanical properties:

Standard

Grade

Tensile strength (MPa)

Yield strength (MPa)

Elongation (%)

GB/T 8163

10

335~475

≥205

≥24

20

410~550

≥245

≥20

Q345

490~665

≥325

≥21

 

Chemical composition:

Standard

Grade

Chemical Composition

C

Si

Mn

P

S

Cr

Ni

Cu

GB/T 8163

10

0.07~0.14

0.17~0.37

0.35~0.65

≤0.035

≤0.035

≤0.15

≤0.25

≤0.25

20

0.17~0.24

0.17~0.37

0.35~0.65

≤0.035

≤0.035

≤0.25

≤0.25

≤0.25

Q345

0.12~0.20

0.20~0.55

1.20~1.60

≤0.045

≤0.045

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