Steel plates for large diameter pipes or pipeline steel plates are used to make Steel pipe for transporting oil, natural gas and other large mouth with a hot-rolled coil steel by welding or heavy plate. Steel plates for large diameter pipes or pipeline steel plates in addition requires a high compressive strength, but also requires a high temperature toughness and excellent weldability.
The main grade of pipeline steel plate are :
Material #: 1.0457, 1.0484, 1.0582, 1.8972, 1.0418, 1.0429, 1.0578, 1.8973, 1.8975, 1.8977, 1.8978
EN 10208-2: L 245NB, L 290NB, L 360NB, L 415NB, L 245MB, L 290MB, L 360MB, L 415MB, L 450MB, L 485MB, L 555MB
DIN 17172: StE 240.7, StE 290.7, StE 360.7, StE 415.7, StE 240.7 TM, StE 290.7 TM, StE 360.7 TM, StE 415.7 TM, StE 445.7 TM, StE 480.7 TM
API 5L : Gr. B, X 42, X 52, X 60, X 65, X 70, X 80.
| Material # | EN 10208-2 | DIN 17172 | API 5L |
| 1.0457 | L 245NB | StE 240.7 | Gr. B |
| 1.0484 | L 290NB | StE 290.7 | X 42 |
| 1.0582 | L 360NB | StE 360.7 | X 52 |
| 1.8972 | L 415NB | StE 415.7 | X 60 |
| 1.0418 | L 245MB | StE 240.7 TM | Gr. B |
| 1.0429 | L 290MB | StE 290.7 TM | X 42 |
| 1.0578 | L 360MB | StE 360.7 TM | X 52 |
| 1.8973 | L 415MB | StE 415.7 TM | X 60 |
| 1.8975 | L 450MB | StE 445.7 TM | X 65 |
| 1.8977 | L 485MB | StE 480.7 TM | X 70 |
| 1.8978 | L 555MB | X 80 | |
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