Fresh production.Pipes on fresh production are better than those stored over several months,inExternal surface.Clean external surface helps the next coating step.If not clean enough,youdInternal surface.Clean internal surface with fewer rust scrap,dust,and welding slag inside theCoating.The quality and lifetime of coating are determined by layer thickness,adhesive force andMarking.Correct,clear and indelible marking is very helpful to define pipe,as well as trace quality.End protection.Pipes must be welded or threaded for connecting other joints.So pipe end isBundle and unit weight.Pipes shall be tied tightly into bundles,to avoid loosening in transportationStore in warehouse.Pipe shall always be stored in indoor warehouse,no matter in mill or seaport,ASTM A795 / A795M
ASTM A795 Black Welded Steel Pipe Specification .Products Name ASTM A795 Black Welded Steel Pipe Description 1- Standard ASTM A795/A795M 2- Specification for Black and Hot-Dipped Zinc-Coated (Galvanized) Welded and Seamless Steel Pipe for Fire Protection Use 3- Type Electric-resistance-welded(ERW)ASTM A795 ERW steel pipeASTM A795 ERW steel pipe Supply scope for sch10 pipe (UL Listed / FM Approved) ERW steel pipe is formed by rolling strip and welding the seam,with tighter dimensional tolerances and less weight.The weld seam is heat treated after welding that no untempered martensite remains,and the weld flash can be removed from both inner and outer surfaces.
ERW Steel Pipe,ERW Pipe,ERW Balck Pipe manufacturer / supplier in China,offering ASTM API 5L Seamless Steel Pipe 1 1/4 Inch 3.56mm 5.8m with Painting Caps,API Pipe Special Pipe X52 X60 Nb50,80,100,150,200,250,300,400,500,600 2-60 mm Thickness ERW Welded Pipe with Bevel End,Galvanized Steel Tube Sizes as Per BS1387 Light Medium Heavy Gauge Thickness and so on.Steel Slitting Factory,Custom Steel Slitting OEM/ODM Looking for steel slitting factory direct sale? You can buy factory price steel slitting from a great list of reliable China steel slitting manufacturers,suppliers,traders or plants verified by a third-party inspector.Source with confidence.
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