Duplex stainless steel tube and method for producing same

Duplex stainless steel tube and method for producing same

  • CN 104,395,491 A
  • Filed: 08/22/2013
  • Published: 03/04/2015
  • Est. Priority Date: 08/31/2012
  • Status: Active Application
First Claim
Patent Images

1. a duplex phase stainless tube, is characterized in that,The tube axial direction of duplex phase stainless tube has the tensile yield strength YS of 689.1 ~ 1000.5MPa lT, Described tensile yield strength YS lT, described tube axial direction compression yield strength YS lC, described duplex phase stainless tube the tensile yield strength YS of pipe circumferential direction cTand the compression yield strength YS of described pipe circumferential direction cCall meet (1) formula ~ (4) formula:

  • 0.90≤

    YS LC/YS LT

    1.11·

    ·

    ·

    (1);

    0.90≤

    YS CC/YS CT

    1.11·

    ·

    ·

    (2);

    0.90≤

    YS CC/YS LT

    1.11·

    ·

    ·

    (3);

    0.90≤

    YS CT/YS LT

    1.11·

    ·

    ·

    (4)。

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