API 5L, ASTM A53, ASTM A178, ASTM A500 filler-free pressure welding process, where no additional material is added to the weld seam. Instead, high-frequency current's skin effect and proximity effect to form a forged microstructure in the weld zone.
For high-quality steel pipes, is applied along the weld line to refine the weld zone microstructure. Premium ERW pipes can achieve in the weld seam as those of the base material.
Out Diameter: 4"-20"
Wall Thickness: 3-20mm
Length : 3-12m, or according to customer's requirement
Standard: ASTM 5L, ASTM A53, ASTM A178, ASTM A500/501, ASTM A691, ASTM A252, ASTM A672, EN 10217
Lightly oiled, Hot dip galvanized, Electro galvanized, Black, Bare, Varnish coating/Anti rust oil, Protective Coatings (Coal Tar Epoxy, Fusion Bond Epoxy, 3-layers PE)
Plastic plugs in both ends, Hexagonal bundles of max. 2,000kg with several steel strips, Two tags on each bundle, Wrapped in waterproof paper, PVC sleeve, and sackcloth with several steel strips, Plastic caps.
