Method for preparing steel with low-temperature flexibility

Method for preparing steel with low-temperature flexibility

  • CN 101,512,022 A
  • Filed: 09/13/2006
  • Published: 08/19/2009
  • Est. Priority Date: 09/13/2006
  • Status: Active Application
First Claim
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1. be used to prepare the method for steel, wherein implement to comprise and quench and annealed thermal treatment, it is characterized in that the following step:

  • A) between 920-960 ℃

    , quench,B) between 820-860 ℃

    , implement to quench for the second time,C) annealing between 620-660 ℃

    .

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