High strength cold rolled steel sheet and hot dip galvanized steel sheet having excellent formability and coating property, and the method for manufacturing thereof

High strength cold rolled steel sheet and hot dip galvanized steel sheet having excellent formability and coating property, and the method for manufacturing thereof

  • CN 101,326,299 A
  • Filed: 12/08/2006
  • Published: 12/17/2008
  • Est. Priority Date: 12/09/2005
  • Status: Active Application
First Claim
Patent Images

1. a high strength cold rolled steel plate that has excellent plasticity and apply characteristic comprises:

  • the manganese (Mn) of the carbon (C) of 0.01-0.2 weight %, the silicon (Si) of 0.01-2.0 weight %, 0.5-4.0 weight %, the phosphorus (P) less than 0.1 weight %, the sulphur (S) less than 0.03 weight %, the soluble aluminum (Sol.Al) less than 1.0 weight %, the nitrogen (N) of 0.001-0.1 weight %, the antimony (Sb) of 0.005-1.0 weight % and the iron (Fe) and the unavoidable impurities of surplus.

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