ERW steel pipe (ERW steel pipe) is generally used as a wire sleeve in the power industry. Performance characteristics: 100% ultrasonic testing of the base material to ensure the inherent quality of the pipe body; there is no unwinding-disc shearing process , The base material has less pits and scratches; the finished pipe after stress relief basically has no residual stress; the weld is short, and the probability of defects is small; the moist sour natural gas can be transported conditionally; after the diameter is expanded, the geometry of the steel pipe High dimensional accuracy; welding is performed in a straight line in the horizontal position after the molding is completed. Therefore, the control of staggered edges, slits, and pipe diameter circumference is good, and the welding quality is excellent.
Tips: ASTM A53 Grade B is more popular than other grades. These pipes can be bare pipes without any coating, or it may be Hot-Dipped or Zinc-Coated and manufactured by Welding or by a Seamless manufacturing process. In Oil and Gas, A53 grade pipes are used in the structural and non-critical applications
