Low-chromium-content stainless steel with excellent corrosion resistance of weld

Low-chromium-content stainless steel with excellent corrosion resistance of weld

  • CN 102,782,170 A
  • Filed: 02/21/2011
  • Published: 11/14/2012
  • Est. Priority Date: 02/24/2010
  • Status: Active Grant
First Claim
Patent Images

1. a low Chromium Stainless Steel is characterized in that:

  • in quality %, containC:

    0.015~

    0.025%、

    N:

    0.008~

    0.014%、

    Si:

    0.2~

    1.0%、

    Mn:

    1.0~

    1.5%、

    Below the P;

    0.04%,Below the S;

    0.03%,Cr:

    10~

    13%、

    Ni:

    0.2~

    1.5%、

    Al;

    0.005~

    below 0.1%,Further contain Ti;

    6 * (C%+N%) above and 0.25% below,Remainder comprises iron and unavoidable impurities;

    And the content of each element satisfies formula (A) and formula (B);

    γ

    p(

    %)



    420×

    C%+

    470×

    N%+

    23×

    Ni%+



    Cu%+



    Mn%-

    11.5×

    Cr%-

    11.5×

    Si%-

    12×

    Mo%-

    23×

    V%-

    47×

    Nb%-

    49×

    Ti%-

    52×

    Al%+

    189≥

    80%?(

    A)

    Ti%×

    N%<

    0.003 (

    B)



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