The structural steel having excellent weather resistance

The structural steel having excellent weather resistance

  • CN 107,002,197 A
  • Filed: 11/25/2015
  • Published: 08/01/2017
  • Est. Priority Date: 12/09/2014
  • Status: Active Application
First Claim
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1. a kind of structural steel having excellent weather resistance, it is characterised in that contain C in terms of quality %:

  • 0.01% less than0.20%th, Si:

    0.05%~1.00%, Mn:

    0.20%~2.00%, P:

    0.001%~0.050%, S:

    0.0001%~0.0200%th, Al:

    0.005%~0.050%, Cu:

    0.010%~0.500%, Nb:

    0.005%~0.100%, Sn:

    0.005%~0.300%, also, solid solution Nb amounts are 0.002%~0.080%, remainder is iron and the impurity that can not be kept away.

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