Steel for bolts, bolt, and method for producing bolt

Steel for bolts, bolt, and method for producing bolt

  • CN 104,040,004 A
  • Filed: 11/26/2012
  • Published: 09/10/2014
  • Est. Priority Date: 01/11/2012
  • Status: Active Application
First Claim
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1. a bolt steel, is characterized in that, in quality, % containsC:

  • 0.30~

    0.50%



    Si:

    1.0~

    2.5%



    Mn:

    0.1~

    1.5%



    P;

    0.015% following and containing 0%,S;

    0.015% following and containing 0%,Cr:

    0.15~

    2.4%



    Al;

    0.010~

    0.10% andN:

    0.001~

    0.10%



    And Cu;

    0.1~

    0.50% and Ni;

    0.1~

    1.0% are contained to meet the mode of [Ni]/[Cu] >

    =0.5, described [Ni] represents that described [Cu] represents to measure in the Cu in the steel of quality % in the Ni amount in the steel of quality %,Make Ti;

    0.05~

    0.2% and V;

    0.2% following and 0% above to meet [Ti]+[V];

    0.085~

    0.30% mode contains, and described [Ti] represents in the Ti amount in the steel of quality %, described [V] represent in the V amount in the steel of quality % simultaneously,Surplus is iron and inevitable impurity.

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