News

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  20G high pressure boiler pipe

  20G high pressure boiler pipe is a kind of seamless steel tube; 20G is the national standard steel of GB5310 (correspond

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  What are the welding methods of alloy steel pipe

  In order to prevent welding deformation of alloy steel pipe, each column joint is symmetrically welded by two people, an

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  Reasons and solutions for bending of alloy steel pipes during welding

  Alloy steel pipe is based on carbon steel, and one or more aluminum alloy elements are appropriately added, which is mor

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  Alloy seamless steel pipe

  Alloy seamless steel pipe is a kind of seamless steel pipe, and its performance is much higher than that of ordinary sea

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  It is expected that the output of EU steel pipe will increase year on year in 2021

  After EU steel pipe production remained basically stable in 2019 (down 0.3% year-on-year), EU steel pipe production in 2

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  Changes of 42CrMo4 pipe inventory

  The social inventory of 42CrMo4 pipe continued to decline, with a weekly decline of 4.21%, and the steel mill inventory

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  Main boiler steel pipe standards

  Boiler steel pipe standards:
  ASME SA106: Seamless carbon steel nominal pipe for high temperature
  ASME SA179: Seamless

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  Quenching and cooling of No.45 steel

  Now take No.45 steel with φ12.5mm×60mm as an example, wC is 0.46%, heating temperature is 840℃, and the quenc

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  Application of 20G high pressure boiler tube

  20G high pressure boiler tube is mainly used to manufacture superheater tube, reheater tube, gas pipe and main steam pip

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  Export status of 42CrMo4 steel pipe

  The General Administration of Customs released China's export data in April, of which 42CrMo4 steel pipe and so on steel

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