Welded steel pipe abbreviation, or common steel strip after curl forming unit and mold made of welded steel pipe. Welded steel pipe production process is simple, high production efficiency, different specifications, less investment in equipment, but the general strength of less than seamless. Since the 1930s, with the progress of high-quality steel rolling production and the rapid development of welding and inspection techniques, weld quality continues to improve, welded steel pipe increasing varieties and specifications, and in more and more areas, especially in Who alternate heat pipe, decorative pipes, low pressure fluid pipes and other aspects instead of seamless steel tubes. Press the seam into the form of the Longitudinal and spiral welded pipe. By end-use is divided into general pipe, heat exchanger tubes, condenser tubes, galvanized pipe, Oxygen pipe, wire casing, metric pipe, roller tube, deep well pump tube, automotive, transformer tubes, welded thin wall tubes, shaped tubes and spiral welded pipe GB / T12770-2002 (mechanical structure with stainless steel welded pipe). Mainly used in machinery, automobiles, bicycles, furniture, hotel and restaurant decoration and other mechanical components and structures. The representative of material 0Cr13,1Cr17,00Cr19Ni11,1Cr18Ni9,0Cr18Ni11Nb like. GB / T12771-2008 (fluid transport stainless steel welded pipe). Mainly used for conveying low pressure corrosive media. Representative material for 06Cr19Ni10,022Cr19Ni10,06Cr19Ni110Ti, 00Cr17,0Cr18Ni11Nb, 06Cr17Ni12Mo2 like. A stainless steel tube (tact) - Specifications: ∮3 ∮4 ∮5 ∮6 ∮7 ∮8 ∮9 ∮9.5 ∮10 ∮11 ∮12 ∮12.7 ∮13 ∮14 ∮15 ∮16 ∮17 ∮18 ∮19.1 ∮20 ∮22.2 ∮24 ∮25.4 ∮27 ∮28 ∮28.6 ∮30 ∮31.8 ∮33.4 ∮35 ∮38.1 ∮40 ∮42.7 ∮45 ∮48.5 ∮50 ∮50.8 ∮54 ∮57 ∮60 ∮63.5 ∮65 ∮70 ∮76.2 ∮80 ∮82 ∮89.1 ∮100 ∮101.6 ∮103 ∮105 ∮108 ∮110 ∮114 ∮120 ∮127 ∮133 ∮141 ∮152.4 ∮159 ∮168 ∮191 ∮203 ∮219 ∮273 ∮323.85 etc; welcome customers and friends They come to inquire negotiations, samples, faith based, and you work together.