Multilayer metal-coated steel sheet

Details Multilayer metal-coated steel sheet Multilayer metal-coated steel sheet

B - Operations, Transporting

32

B

B32B 15/01 (2006.01) C23C 14/16 (2006.01) C23C 28/02 (2006.01)

Patent

CA 2053193

A multilayer metal-coated steel sheet comprising as a first layer a Zr coating layer formed on the surface of a steel sheet, and as a second layer an Al coating layer formed on said first layer. As another embodiment, also disclosed is a multilayer metal-coated steel sheet comprising as a first layer a Zr coating layer formed on the surface of a steel sheet, as a second layer an Al-Zr alloy coating layer containing Zr in an amount of 1 % by weight to 50 % by weight, formed on said first layer, and as a third layer an Al coating layer formed on said second layer. The multilayer metal-coated steel sheet of the present invention has an improved corrosion resistance, heat resistance and formability.

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