Stainless steel for use in oil well tube

Stainless steel for use in oil well tube

  • CN 101,981,215 A
  • Filed: 03/19/2009
  • Published: 02/23/2011
  • Est. Priority Date: 03/28/2008
  • Status: Active Application
First Claim
Patent Images

1. a pipe for oil well use stainless steel is characterized in that,In quality %, this pipe for oil well use stainless steel contains that C:

  • 0.001~

    0.05%, Si;

    0.05~

    1%, Mn;

    2% are following, P;

    0.03% is following, S;

    less than 0.002%, Cr;

    16~

    18%, Ni;

    3.5~

    7%, Mo;

    greater than 2% and smaller or equal to 4%, Cu;

    1.5~

    4%, rare earth metal;

    0.001~

    0.3%, sol.Al;

    0.001~

    0.1%, Ca;

    0.0001~

    0.01%, O;

    0.05% is following and below the N;

    0.05%, surplus is made of Fe and impurity.

View all claims
    ×
    ×

    Thank you for your feedback

    ×
    ×