Supply various of steel pipesQuality Standards:ASTM A53,API 5L, Gr.B-X70 ,ASTM A106, ASTM A179,ASTM A192,ASTM A519,DIN,EN, AS1163 C250/C350,etcUsing:Structure pipe/oil pipe/gas pipe/hydraulic pipe/boiler pipe/fluid pipe, Petroleum, chemical, power, gas, metallurgy, shipbuilding, construction, etc.http://www.hnssd.com/1.ERW (Electric Resistance Welded Steel Pipes / Tubes) Outer Diameter: 6mm-610mm (1/16"-24")Wall Thickness: 0.3mm-22mmLength: 0.5mtr-20mtr2.LSAW (Longitudinal Submerge-arc Welded) UO(UOE)?RB(RBE)?JCO(JCOE)DSAW (Double Submerged arc welded) Outer Diameter: 219mm-1820mmWall Thickness: 5.0mm-50mmLength: 6mtr-18mtr 3.SSAW (Spirally Submerged Arc Welding Steel Pipes/Tubes) Outer Diamter: 219.1mm - 4064mm (8" - 160")Wall Thickness: 3.2 mm - 40mmLength: 6mtr-18mtr4.Seamless Steel Pipes Outer Diameter?Hot finish: 2" - 30",Cold drawn: 0.875" - 18"Wall Thickness?Hot finish: 0.250" - 4.00",Cold drawn:0.035" - 0.875"
