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LOW-ALLOY AND CORROSION-RESISTANT STEEL FOR VEHICLE, HAVING IMPROVED CORROSION RESISTANCE UNDER CORROSIVE ENVIRONMENT, AND PREPARATION METHOD THEREOF

  • US 20180327877A1
  • Filed: 11/01/2017
  • Published: 11/15/2018
  • Est. Priority Date: 05/10/2017
  • Status: Active Grant
First Claim
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1. A low-alloy and corrosion-resistant steel for a vehicle, comprising:

  • about 0.001 wt % to about 0.1 wt % of C, about 0.01 wt % to about 0.5 wt % of Si, about 0.1 wt % to about 0.6 wt % of Mn, more than 0 wt % and about 0.18 wt % or less of P, more than 0 wt % and less than about 0.02 wt % of S, about 0.001 wt % to about 0.03 wt % of Nb, more than 0 wt % and about 0.03 wt % or less of Cr, about 0.05 wt % to about 0.3 wt % of Cu, about 0.05 wt % to about 0.2 wt % of Ni, and more than 0 wt % and about 0.2 wt % or less of a combined weight of Sn and Sb, and the balance iron and inevitable impurities.

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