name: steel pipe material: carbon steel A234 WPB ANSI B16.9 standard: ASTM, ... /2''--24'',Butt Welding:26''--72'')3MaterialCarbon steel,Stainless steel,Alloy Steel4Material GradesA234 WPB,A106,A53,API 5L,A105,A333Cr6,A333Cr3 ... middle pressure fluid transportation pipeline 2. Casing Tube 3. Boiler Pipe 4. Petroleunm and natural gas industry 5. Chemistry industry 6 ...