GB / T12771-2008 fluid transport stainless steel welded austenitic stainless steel welded pipe HG 20537.1-92 provisions 20537.2-1992 selection of shell and tube heat exchangers used in austenitic stainless steel welded pipe technical requirements applicable to no more than 76.1mm steel HG 20537.3-92 chemical plant austenitic stainless steel welded pipe technical requirements applicable to the range of 76.1mm diameter and the diameter of not more than steel HG 325mm 20537.4-92 chemical plant with large-diameter welded austenitic stainless steel pipe diameter does not apply to the technical requirements less than 355.6mm steel GB12770-2002 mechanical structure with stainless steel welded pipe and stainless steel pipe three classifications method uses by Use: decorative pipes, industrial pipes, food sanitation tubes, pipes and other nuclear power; by appearance points: Pipe , square tube, shaped tubes, capillary; divided by ingredients: austenitic, ferritic, duplex stainless steel precision tubes, super double equal. Depending on the field, the required material is not the same stainless steel pipe, such as 201 can place decorative stainless steel pipe specifications, there is no need to use 316L stainless steel tube 316, prices vary greatly, but more stringent requirements nuclear, chemical and food industries, corrosion resistance, pressure resistance is required, the ingredients inappropriate words, the danger will happen. Stainless steel pipe specifications | manufacturer (certified) | by Shandong Liaocheng stainless steel pipe stainless steel tube Co., Ltd. Jinding. Shandong Jinding Stainless Steel Pipe Co., Ltd. (www.jdbxg.cn) is Dezhou, steel leader, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Jinding tube industry leader in the staff warmly welcome all inquiries negotiations to create Jinding Pipe a better future.