About LSAW/HSAW
Longitudinal Submerged Arc Welded (LSAW) and Helical Submerged Arc Welded (HSAW/SAWH) large diameter steel pipes for water transmission, oil & gas pipelines, structural piling, and infrastructure projects. Conforming to API 5L, IS 3589, ASTM A672, and EN 10219.
Use this page as a product and specification reference. The exact material grade, dimensions, manufacturer, certification, inspection scope, quantity, price, availability, freight, and delivery timing are confirmed for the specific RFQ.
Specification reference
| Outer Diameter (OD) | LSAW: 16"-48" (406-1219mm), HSAW: 16"-120" (406-3048mm) |
|---|---|
| Wall Thickness (WT) | 6mm to 40mm |
| Grades | API 5L Gr B/X42/X52/X60/X65/X70, IS 3589 Gr 330/410 |
| Standards | API 5L PSL1/PSL2, IS 3589, ASTM A672, EN 10219 |
| Coating | 3LPE, 3LPP, FBE, coal tar enamel, cement mortar lining (CML) |
Confirm the exact grade, dimensions, tolerance, test certificate, and current availability for your requirement before ordering.
Common applications
- Water Transmission: Bulk water mains, penstock pipes, irrigation canals, desalination plant piping.
- Oil & Gas: Crude oil pipelines, natural gas transmission, cross-country pipelines.
- Piling & Marine: Foundation piles, marine piles, jetty construction, cofferdams.
- Infrastructure: Bridge casings, culverts, tunnel liners, structural columns.
Source mills we work with
We procure from established Indian and global mills selected for the required grade, test certificate, and delivery schedule.
- Jindal SAW Ltd
- Welspun Corp
- Man Industries
- PSL Limited
Applicable standards and specifications
What to include in the RFQ
- Specify the relevant standard or grade where known.
- Provide OD or NB, wall thickness or schedule, required length, and quantity.
- State the delivery city or PIN code and any unloading constraints.
- List MTC, IBR, TPI, marking, inspection, or other documentation requirements.