
Products
Two mills. One standard of precision.
Helical and longitudinal submerged arc welded line pipe, manufactured to API 5L and supplied with a complete inspection dossier.
Dimensional range
Mill capability
| Mill | Outside diameter | OD (inch) | Wall thickness | Length | Capacity |
|---|---|---|---|---|---|
| Helical seam SAW | 508 – 2134 mm | 20″ – 84″ | 6.4 – 22.2 mm | up to 12.2 m | 250,000 MT/y |
| Longitudinal seam SAW | 610 – 1524 mm | 24″ – 60″ | 6.4 – 30.5 mm | up to 12.2 m | 180,000 MT/y |
Materials
Grades & mechanical properties
| Grade | Min. yield (MPa) | Min. tensile (MPa) | Typical service |
|---|---|---|---|
| API 5L Gr. B | 245 | 415 | Water & general transmission |
| API 5L X42 | 290 | 415 | Low-pressure oil lines |
| API 5L X52 | 360 | 460 | Oil & gas gathering |
| API 5L X60 | 415 | 520 | High-pressure transmission |
| API 5L X65 | 450 | 535 | High-pressure transmission |
| API 5L X70 | 485 | 570 | Long-distance gas trunk lines |
Supply by application
Where our pipe goes
| Application | Recommended mill | Finishing |
|---|---|---|
| Oil transmission | Helical / Longitudinal | Bevelled ends, external coating |
| Gas transmission | Longitudinal SAW | 3LPE / FBE coating |
| Water pipelines | Helical SAW | Cement mortar lining |
| Structural piling | Helical SAW | Plain ends |
| Casing & conductor | Longitudinal SAW | Threaded / bevelled |
| Slurry lines | Helical SAW | Heavy wall, abrasion allowance |
Contact
Tell us about your pipeline.
Send us your specification — diameter, wall thickness, grade, coating and tonnage — and our team will come back with availability and lead times.
Plant & head office
Dhahran, Eastern Province, Saudi Arabia
Telephone
+966 13 857 0000
Email
info@npc.com.sa

