GB/T8163 seamless steel pipe for conveying fluid Standard: GB/T8163Seamless steel pipe for conveying fluid use: General seamless steel pipe for conveying fluid The main production of steel pipe grade: 10, 20, Q345, etc. Steel pipe productio
GB/T8163 seamless steel pipe for conveying fluid
|
Steel pipe type |
Outer diameter(OD) |
Wall thickness(WT) |
||
|
Cold drawn tube |
Steel pipe outer diameter (mm) |
Tolerance |
Steel pipe wall thickness (mm) |
Tolerance |
|
＞30～50 |
±0.3 |
≤30 |
±10％ |
|
|
＞50～219 |
±0.8％ |
|||
|
Hot rolled tube |
＞219 |
±1.0％ |
＞20 |
±10％ |
Mechanical properties:
|
Standard |
Grade |
Tensile strength (MPa) |
Yield strength (MPa) |
Elongation(%) |
|
GB/T8163 |
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/T8163 |
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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Product key description, this is a very good product description, detailing our product use, product characteristics