What does LSAW mean?
LSAW is an abbreviation for Longitudinal Submerged Arc Welding, a method of manufacturing steel pipes from flat steel plates. This method uses double-sided submerged arc welding to longitudinally connect the two long sides of a flat steel plate, forming a straight weld seam, thus processing the steel plate into a steel pipe.
What is the standard length of ASTM A53 LSAW welded steel pipe?
The standard lengths of ASTM A53 LSAW (Longitudinal Submerged Arc Welding) steel pipe are typically 5.8 meters (19 feet), 6 meters (20 feet), 11.8 meters (39 feet), or 12 meters (40 feet), but any length or custom length can also be produced upon customer request.
What coatings are available for A53 LSAW steel pipe?
The coatings for LSAW steel pipe conforming to the ASTM A53 standard include external coatings (such as fusion-bonded epoxy coating (FBE), three-layer polyethylene coating (3LPE), and hot-dip galvanizing) and internal coatings (such as cement or epoxy lining).
How to identify LSAW steel pipe by appearance?
LSAW steel pipes are characterized by a straight weld along their length, distinguishing them from seamless steel pipes.
Does the A53 standard require a hydrostatic test?
Yes, the ASTM A53 standard requires a hydrostatic test on every steel pipe to ensure it can withstand pressure without leaking.
