Model Number: SINO-STEEL TUBES-37 Brand Name: SINO SOURCES Key Specifications/Special Features: ERW pipe/welded pipe is widely used in the fields of construction, low-pressure liquid transportation, scaffolding and etc.We can supply the products according to the following standards.Standard:GB/T3091–2001,BS1387–1985,DINEN10025,DIN2440,EN10219,JISG3444:2004,ASTMA53,ASTMA500,API5L.Steelgrade:Q235,Q345,S235JR,S275JR,S355,S355JR,S355J2H,STK400,STK50API5L:A,B,X42,X46,X52,X56,X60,X65X70End:squareends(straightcut,sawcut,andtorchcut).orbeveledforwelding,beveled,Surface:Lightlyoiled,hotdipgalvanized,electrogalvanized,black,bare,varnishcoating/antirustoil,protectivecoatings(coaltarepoxy,fusionBondEpoxy,3-layersPE)Packing: Plasticplugsinbothendswithseveralsteelstrips,Twotagsoneachbundle,Wrappedinwaterproofpaper,PVCsleeve,andsackclothwithseveralsteelstrips,Plasticcaps.Test:Chemicalcomponentanalysis,mechanicalproperties(ultimatetensilestrength,yieldstrength,elongation),technicalproperties(flatteningtest,bendingtest,blowtest,impacttest),exteriorsizeinspection,hydrostatictest,x-raytest.Thirdpartyinspection:SGS,BV,Lloydsetc.