pipe material standard
PIC-(pipe material standard)
pipe material standard
Chinese standard GB/T8163
Mainly Application: Conveying water,gas oil and other fluids
Material grade: 10#, 20#,A106/A53 GrB, Api5l Grb.
Chemical composition and mechanical properties：
| Standard |
Steel grade |
Chemical constituents (%) |
| C |
Mn |
Si |
Cr |
Ni |
Cu |
P.S |
| GB/T8163 |
10 |
0.07～0.13 |
0.35～0.65 |
0.17～0.37 |
≤ 0.15 |
≤ 0.30 |
≤ 0.25 |
≤ 0.030 |
| 20 |
0.17～0.23 |
0.35～0.65 |
0.17～0.37 |
≤ 0.25 |
≤ 0.25 |
≤ 0.25 |
≤ 0.030 |
| Q345 |
0.12～0.20 |
1.20～1.60 |
0.20～0.55 |
|
|
|
≤ 0.030 |
| Mechanical properties |
Tensile strength (MPa) |
Yield strength (MPa) |
Elongation(%) |
| 10 |
335～475 |
≥ 205 |
≥ 24 |
| 20 |
410～550 |
≥ 245 |
≥ 20 |
| Q345 |
490～665 |
≥ 325 |
≥ 21
|
|
