LSAW (Longitudinal Submerged Arc Welded) pipe is made by rolling steel plate into pipe blank and adopting double-sided submerged arc welding technology. It features large diameter, heavy wall thickness, high dimensional accuracy, good roundness and strong pressure resistance, widely used in long-distance oil & gas transmission, offshore pipelines, petrochemical projects, bridge piling, high-pressure fluid transmission and large-diameter structural engineering.
It is especially suitable for Middle East large-scale energy projects with high requirements for safety and stability.
1. Standard
- API 5L PSL1 / PSL2
- ASME B36.10M
- ASTM A671 / A672
- EN 10219
2. Size Range
- OD: DN400 ~ DN1500 (16" ~ 60")
- WT: 6 mm ~ 60 mm
- Length: 6m, 12m, 18m, 24m
3. Pressure Grade
- SCH 40 / SCH 80 / SCH 100 / SCH 120 / SCH 160
- XS / XXS
4. Steel Grade
- API 5L:
B, X42, X46, X52, X56, X60, X65, X70, X80
5. Material
- Carbon Steel
- Low Alloy Steel
6. Face Type
- Beveled end (坡口)
- Plain end (平端)
- Protected with plastic pipe cap
7. Coating
- External: 3LPE / FBE / epoxy paint
- Internal: epoxy coating / cement mortar lining
- Anti-rust oil
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