| 摘要 |
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. |
