Patent ID: 7968210

Claim:
A melting aluminum and silicon plated steel sheet, comprising: a steel sheet portion which comprises at most about 0.005 mass % of C, at most about 0.005 mass % of N, at least about 0.1 mass % and at most about 0.5 mass % of Si, at most about 0.1 mass % of P, at most about 0.02 mass % of S, at least about 1.05 mass % and at most about 1.3 mass % of Mn, at most about 1.0 mass % of sol Al, a residual amount of Fe and inevitable impurities; and an aluminum and silicon plated layer comprising Al and Si being deposited on the steel sheet portion so as to reduce or prevent a discoloration when the aluminum and silicon plated layer is re-heated at a temperature of at least about 500° C. to at most about 700° C., the aluminum and silicon plated layer having more than approximately 6 mass % Si and less than approximately 12 mass % Si.