Good quality competitive price Steel pipe/tube Henan Join-Win Im/Ex Corp. Product contains carbon and alloy steel pipe/tube. Classified by the pipe application , we call them high - pressure boiler steel pipe/tubes, oil casting pipe/tubes, structural steel pipe/tube. If we classify them by seamless or welded. There are: seamless steel pipe/tube, ERW , LSAW, and Spiral weld pipe. The raw material of seamless steel pipe is round solid steel bar, the welded steel pipe raw material steel plate or steel strip. Our company keeps alloy steel pipe : ASTM A209Alloy seamless steel pipe for boiler and Superheater, ASTM A213 seamless Ferritic and Austenitic Alloy-steel tube for boiler Superheater and Heat-Exchanger, ASTM A250 Electric Resistance welded Ferritic Alloysteel boiler and Superheater tube, ASTM A335 Ferrite alloy seamless steel tube, ASTM A369 Ferritic Alloy steel forged and bored steel pipe,DIN 17175 seamless alloy steel, JIS G 3462 Seamless alloy steel tube, JIS G3458 seamless alloy steel tube for pressure vessel. High-pressure boiler tubes like : ASTM A106 Gr C, DIN17175 ST45.8/3, JIS STB 410 etc.Oil Casting ,like : APISPEC5CT, SY/T6194-96, H-40, J-55, K-55, N-80, C-75, L-80, C-90, C-95, P-110, Q-125 ,DZ40, DZ55, DZ753 etc .Precision tube : S215GSiT (1.0211, St 30 Si); S215GAlT (1.0212, St 30 Al), S235G2T (1.0305, St 35) S255GT (1.0408, St 45) S355GT (1.0580 St52) etc .Common seamless steel pipe/tube : A53/A106 GRA/B,ST37,ST35-8,ST44,ST45-8,ST52,STD G 410 G etc .API 5L Line pipe : API 5L PSL1, PSL2 Grade A, Grade B, X42, X52, X60, X65, X 70, X80, X120 etc .Square steel pipe and Rectangular steel pipe: A36, S325JR, S275JR, S355JR, ST37-2, ST44-2,ST52-3etc .Structural steel pipe or steel tube : A36, St37-2, S235, S355, C20, C30, C35,C40, C45etc . Henan Join-Win Im/Ex Corp. Is a professional steel pipe/tube stockiest and supplier .We have more than 100,000 tons steel plate in stock every month . We also offer steel pipe ,steel coil ,stainless steel ,shipbuilding steel ,If you need any need of steel products , please do not hesitate to contact us as following ways . helen(at)steel-jw(dot)comHelenzhang6611(at)gmail(dot)comSkype join.win.helen Url www(dot)steel-jw(dot)comTel 86,371,63332179