GB/T 9711
GB/T 9711 (Petroleum and natural gas industries. Steel pipe for pipeline transportation systems)· GB (China) · 18 materials
| Designation | Material group | |
|---|---|---|
| L245MH/BMH | Structural and constructional steels | chevron_right |
| L245NH/BH | Structural and constructional steels | chevron_right |
| L245NH/BNH | Structural and constructional steels | chevron_right |
| L245QH/BQH | Structural and constructional steels | chevron_right |
| L290MH/X42MH | Structural and constructional steels | chevron_right |
| L290NH/X42NH | Structural and constructional steels | chevron_right |
| L290QH/X42QH | Structural and constructional steels | chevron_right |
| L320MH/X46MH | Structural and constructional steels | chevron_right |
| L320NH/X46NH | Structural and constructional steels | chevron_right |
| L320QH/X46QH | Structural and constructional steels | chevron_right |
| L360MH/X52MH | Structural and constructional steels | chevron_right |
| L360NH/X52NH | Structural and constructional steels | chevron_right |
| L360QH/X52QH | Structural and constructional steels | chevron_right |
| L450/X65 | Structural and constructional steels | chevron_right |
| L485/X70 | Structural and constructional steels | chevron_right |
| L555/X80 | Structural and constructional steels | chevron_right |
| L625/X90 | Structural and constructional steels | chevron_right |
| L690/X100 | Structural and constructional steels | chevron_right |