GB/T 9711.1-2011 Spiral Steel Pipe for Oil and Natural Gas Transportation

Mark & model ： Diameter: 219mm~3620mm; WT: 5mm~26mm; Material: L245-L555; (National Standard, also called Petroleum and natural gas industries-Steel pipe for pipelines-Technical delivery conditions-Part 1. Pipes of requirements class A); Used for the transportation of gas, water and oil in petroleum and natural gas industries. Origin ： Asia and Pacific Area China Quality standard ： International H.S.Classification ： Metal Articles Articles of Iron or Steel 7305 Tubes & pipes nesoi, external diameter > 406.4mm, of iron or steel SSAW DSAW Spiral Welded Steel Pipes Production Technology: 1) SSAW Spirally Submerged-Arc Welded Steel pipes 2) DSAW Double Submerged-Arc Welded Steel Pipes Outside Diameter:219mm~3620mm Wall Thickness: 5mm~26mm Length: 2m~12m Standard: API 5LGr.B,API 5L PSL 1 PSL 2 X42,X46,X52,X60,X65,X70, X80 ,ASTM A252 Gr.2,Gr.3,ASTM A53 Gr.BSY/T 5037-2000; SY/T5040-2000; GB/T3091-2008: Q235B,Q345B,20#,16Mn;GB/T9711.1-1997; GB/T9711.2-1999: L245~L555;EN10217-1,EN10219-1,EN10224 L235,L275,L355;EN10025 etc. Material: API 5L GR B,Q235,Q345,L245,L290,L360,16Mn,X42,X46,X52,X60,X65, X70,X80,0Cr13,1Cr17,1Cr18Ni9,S235JR,S235JO,S235J2,S275JR,S355JR, S355JO,S355J2,S355K2; DIN 1629 ST37,ST42,ST52 etc.