API 5L Grade B or L245 line pipes are available in seamless and welded manufacturing types.
Common manufacturing processes include:
- Seamless (SMLS): Manufactured without a longitudinal weld seam.
- ERW: Electric Resistance Welded pipe.
- LSAW: Longitudinal Submerged Arc Welded pipe.
- SSAW / HSAW: Spiral Submerged Arc Welded pipe.
The available manufacturing processes depend on pipe dimensions, wall thickness, production capabilities, and the applicable API 5L requirements.