Cangzhou Botop International Co., Ltd

  ASTM A671/A671M LSAW Steel Pipe This specification covers electric-fusion-welded steel pipe  with filler metal added, fabricated from pressure vessel quality plate of several analyses and strength levels and suitalbe for high-pressure service at atmospheric and lower temperatures. PRODUCT DESCRIPTION Standard: ASTM A671/A671M Application of ASTM A671/A671M LSAW Steel Pipe : Pipe ordered under this specification is used for high-pressure service at atmospheric and lower temperatures. Mainly used for oil and natural gas transmission. Manufacturing Process: ASTM A671 LSAW(JCOE) Carbon Steel Pipe  shall be double-welded, full-penetration welds made in accordance with procedures and by welders or welding operators qualified in accordance with the ASME Boiler and pressure Vessel Code, Section IX. Heat Treatment of ASTM A671 LSAW(JCOE) Carbon Steel Pipe : All classes other than 10, 11, 12 and 13 shall be heat treated in furnace controlled to ±15℃ and equipped with a recording ...

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  As a   Seamless Steel Pipe Supplier , share with you. With the increase in social construction needs, seamless stainless steel pipes are getting more and more attention. At present, there are many seamless stainless steel pipes on the market, and the quality is also uneven, so we must pay more attention when choosing seamless stainless steel pipes. Stainless steel seamless steel pipe is a long steel with a hollow section and no joints on the periphery.  Seamless Carbon Tubing Features of stainless steel seamless pipe: First, the thicker the wall thickness of the product, the more economical and practical it is, and the thinner the wall thickness, its processing cost will rise significantly; secondly, the product’s technology determines its limited performance, generally The seamless steel pipe has low precision: uneven wall thickness, low brightness on the inside and outside of the pipe, high cost of sizing, and there are pits and black spots on the inside and outside t...

  As a   Specification Covers Steel Pipe Supplier , share it with you. What should I do if the stainless steel seamless pipe has cracks in the application? If there are cracks in the stainless steel seamless pipe in use, if it is not repaired in time, there will be a very big safety hazard. How can we repair the cracks? Alloy Seamless Steel Tubes First. The welding techniques and welding parameters used in the repair must be carried out with relevant welding examples. Second. Welders who repair stainless steel seamless pipes must have a qualified certificate for response projects. And it is held by a person with excellent welding quality, and the repair must be passed once. Third. Adopt non-destructive testing techniques to find out all cracks and determine the exact location. Fourth. Select the filler material that conforms to the process example, that is, the welding rod, and apply it after drying according to the regulations. Fifth. The welding condition of the stainless st...