Tianjin Credit Import and Export Trading Co., Ltd

Black Carbon Welded Steel Pipe ERW Steel Pipe Welded Furniture Pipe Black carbon welded steel pipe means Electric Resistance Welded Pipes, mainly character is the welding beam is smooth, two end no burr, hardness is very strong, so some special material can be used for machine components. Brief introduction Black Carbon Welded Steel Pipe means Electric Resistance Welded Pipes and the raw material is carbon steel, mainly character is the welding beam is smooth, two end no burr, hardness is very strong, so some special material can be use for machine components. It is used in building engineering, construction material, scaffolding, line pipes, underground transfer assemble structural, chemical liquid transfer, oil and gas transfer etc. Outside surface can be treated by galvanized, oil, black painting, 3pe or as customer request. Normal usage validity time will be around 5-10 years. Product Description 1.  Carbon welded steel pipe 2.   Main application: scaffold pipe, building material, structural, construction  3.   Material: Q195,Q215,Q235,Q345,ST37,ST52,SS400 Place of Origin: China Brand Name: Jinnuo Certification: ISO9000 Minimum order:  10MT Packing Details:  Loose, plastic package, black strips, G.I strips Supplying Ability: 5000MT-10000MT per Month Specification Product name Black carbon welded steel pipe Out diameter 15-508mm Wall Thickness 0.5-20mm Length 5.8m, 6m,12m or as per customers' requirement Pipe end 1.Plain end2.Beleved end3.Thread with coupling and cap4. Grooved Surface 1.Galvanized2.Painted (Black or red painting)3.Oil4.Bared or as per customers' requirement Standard ASTM/BS/JIS/DIN/GB Material Q195,Q235B,Q345B,St37,St52,SS400,S235JR,S275JR.S355JR etc Certificate ISO9000 Application Steel Structure,Building Material,Scaffold Steel Pipe,Funiture Pipe etc Production Process 1.Uncoiling 2.Edge cutting 3.Eddge conditiong 4.Rolling to shape 5.Spot welding 6.Forming 7.Colibrating 8.End facing 9.Polishing 10.Hydro test 11.X-ray testing 12.Pickling 13.Inspection marking and put in storage Credit Hot sale various high quality API 5L ERW steel pipe, seamless steel pipe, SSAW Steel Pipe from China leading manufacturer. Our product has API 5L, API 5CT, EN10219, EN10217, etc international quality system certification.