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Specification for Cold Formed Welded structural hollow sections of non-alloy and fine grain steels
EN: S275JR, S275J0H, S275J2H, S355JRH, S355J0H, S355J2HGrade: S235JRH, S275J0H,S275J2H,S355J0H,S355J2H, S355K2H
Size: NPS 8 TO NPS 118[DN200 to DN 3000], with nominal（average）wall thickness as given in ASME B 36.10M or as customer's requirement.
Outer Diameter: from 8[(219.1mm) to 118](3000mm)
Thickness: from 6mm to 25mm.
Length: Min 3 Meters, Max18 Meters, or according to customer's requirement.
Ends: Small sizes are plain, Large sizes are beveled, or according to customer's requirement
Surface Treatment: Normally bare or black vanish, FBE/2PE/3PE Coated.
Packing: 1. Small sizes below 219.1mm in bundles, Large sizes in bulk
2. If need, all the pipes can be covered in waterproof wrapping.
Testing: Cast analysis, Tendile test, Impact test for qualities J2 and K2, Surface condition and dimensions, NDT of the weld, Product analysis, and etc. As customer's requirement.