GB/T 9711.2
GB/T 9711.2 (Petroleum and natural gas industries. Steel pipe for pipelines. Technical delivery conditions. Part 2: Pipes of requirement class B)· GB (China) · 10 materials
| Designation | Material group | |
|---|---|---|
| L245MB | Structural and constructional steels | chevron_right |
| L245NB | Structural and constructional steels | chevron_right |
| L290MB | Structural and constructional steels | chevron_right |
| L290NB | Structural and constructional steels | chevron_right |
| L360MB | Structural and constructional steels | chevron_right |
| L360NB | Structural and constructional steels | chevron_right |
| L415MB | Structural and constructional steels | chevron_right |
| L415NB | Structural and constructional steels | chevron_right |
| L450MB | Structural and constructional steels | chevron_right |
| L485MB | Structural and constructional steels | chevron_right |