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Corrosion-resistant coated metal and method for making the same

  • US 6,811,891 B2
  • Filed: 01/17/2003
  • Issued: 11/02/2004
  • Est. Priority Date: 03/27/1992
  • Status: Expired due to Fees
First Claim
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1. A corrosion-resistant petroleum receptacle comprising at least one shell member that includes a seal to maintain fluid within an interior of said petroleum receptacle, said seal including a weld, a solder, bonding, and combinations thereof, said at least one shell member including a carbon steel metal strip having a top and bottom surface coated with a corrosion-resistant metal alloy which resists corrosion by petroleum products, said carbon steel strip having a thickness of less than about 0.2 inch, said corrosion-resistant carbon steel metal strip including a hot dipped coating of said corrosion-resistant metal alloy, said corrosion-resistant metal alloy comprising tin, zinc and at least an effective amount of at least one metal additive to positively affect the mechanical properties of said corrosion-resistant metal alloy, the chemical properties of said corrosion-resistant alloy and combinations thereof, at least about 99 weight percent of said corrosion-resistant metal alloy comprised of tin and zinc, said zinc content of said corrosion-resistant metal alloy being up to about 30 weight percent, said corrosion-resistant metal alloy forming a multi-phase alloy when solidified and said tin and said zinc forming a phase in said corrosion-resistant metal alloy, said metal additive including copper, magnesium, manganese, nickel, silicon, titanium and mixtures thereof, said corrosion-resistant metal alloy having a coating thickness of up to about 0.003 inch.

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