Cangzhou Botop International Co., Ltd

  The chemical composition of seamless stainless steel pipes is different from that of seamed stainless steel pipes. The steel components used to produce seamless pipes only meet the basic requirements of ASTM. The steel used to produce joints contains chemicals suitable for welding. For example, silicon, sulfur, manganese, oxygen and triangular ferrite are mixed in proportion to produce welding flux, which easily transfers heat during the welding process, so that the entire weld is completely fused. Such chemical-free steel pipes, such as seamless steel pipes, will produce various unstable elements during the welding process, making the welding hard and impermeable. The following   Alloy Seamless Steel Tubing Supplier   will share with you t he difference between tubes  seamless stainless steel pipes and stainless steel: Alloy Seamless Steel Tubes 1. Concentricity During the manufacturing process of stainless steel punching blanks at a temperature of 2200°F, the ste...

  As a   Seamless Steel Pipe Supplier , share with you. Seamless stainless steel pipes are widely used in fluid transportation, petroleum, chemical, machinery, etc. The manufacturing process on the market is mainly cold-drawn or cold-rolled reinforcement and solution treatment, and the microstructure is mainly austenite shape. Let me share with you 3 tips for buying seamless stainless steel pipes: Alloy Seamless Steel Tubes 1. Look at the appearance. The stainless steel seamless pipe with high-quality outer surface should be smooth and free of defects such as cracks, wrinkles, scars, etc. The inner and outer surfaces of the passive film pickling steel pipe should be complete, and the steel surface should have obvious and comprehensive product information coding. 2. Measure the size. Relevant technical standards have their own requirements for the length, curvature, out-of-roundness and uneven wall thickness of the steel pipe and the shape of an end. The steel pipe can be place...

  JIS G 3454 STPG370 Carbon Seamless Steel Tubes PRODUCT DESCRIPTION Standard: JIS G 3454 Application of JIS G 3454 Carbon Seamless Steel Pipe : Pipe ordered under this specification is for pressure service at an approximate maximum temperatures of 350℃. Manufacturing Process of JIS G 3454 Carbon Seamless Steel Pipe : Pipes shall be seamless process: hot finished or cold finished. Details of JIS G 3454 Carbon Seamless Steel Pipe We can supply: Manufacture:Seamless process (hot finished and cold finished) Size: O.D.: 15.0～660mm W.T.: 2～50mm Grade:STPG370 ,STPG410 Length: 6M or specified length as required. Ends: Plain End, Beveled End. Chemical Composition and mechanical properties JIS G 3454 Steel Pipe Grade and Chemical Composition (％) Grade C≤ Si≤ Mn P≤ S≤ STPG370 0.25 0.35 0.30~0.90 0.040 0.040 STPG410 0.30 0.35 0.30~1.00 0.040 0.040

  A seamless steel pipe is a circular pipe having a hollow section and no seams around it.   Seamless pipes  are considered superior to welded pipes as they are built using monolithic steel billets, with intrinsic mechanical strength, without seam welds. Seamless steel tubes  for low and medium pressure boilers: used in the manufacture of various low and medium pressure boilers, superheated steam pipes, boiling water pipes, water wall pipes and superheated steam pipes for locomotive boilers, large smoke pipes, small smoke pipes and arch brick pipes. SMLS Pipe  Application: Water underground Sewage Treatment Steel scaffolding Transporting oil & gas Boiler and condenser tubes High-pressure applications Chemical processing  

Standard: API Spec 5L API Spec 5L specifies requirements for the manufacture of two product specification levels (PSL 1 and PSL 2) of seamless pipe  and welded steel pipes . This standard covers the steel pipes made from different manufacturing process like seamless steel pipe, Electric Resistance Welded (ERW) steel pipe, Longitudinal Seam Submerged Arc Welding (LSAW) pipe  and Spiral Submerged-Arc welding (SSAW) pipes. Application of API 5L X65 PSL1/PSL 2 LSAW Carbon Steel Pipe : API 5L X65 PSL1/PSL2 LSAW Carbon Steel Pipe is usually used in projects of oil and gas pipeline, in submarine pipeline, pipelines through high-altitude zones and dense urban areas. Manufacturing Process of API 5L X65 PSL1/PSL 2 LSAW Steel Pipe : API 5L X65 PSL1/PSL2 LSAW Carbon Steel Pipe is manufactured by forming the X65 steel plates into a round shape then welding the seam through automatically arc welding process. In the production of API 5L X65 PSL1&PSL2 LSAW Carbon Steel Pipe, plates of gra...

  ASTM A252 GR.3 LSAW Steel Piles Pipe PRODUCT DESCRIPTION Standard: ASTM A252 Application of ASTM A252 LSAW Steel Pipe : Pipe ordered under this specification is for pipe piles in which the steel cylinder acts as a permanent load-carrying member, or as a shell to form cast –in-place concrete piles. Manufacturing Process of ASTM A252 LSAW Steel Pipe: By fusion welded process Details of Structural Steel Pipe  We can supply: Manufacture: Carbon ERW Steel Pipe Size: O.D.: 323.8～1500mm W.T.: 8～80mm Grade: Gr1, Gr2, Gr3 Length: 6M or specified length as required. Ends: Plain End, Beveled End.