| 摘要 |
The present invention provides an aluminum clad steel sheet having excellent high temperature brazing-joinability, comprising: 0.001-0.015 wt% of carbon (C); 0.001-0.3 wt% of silicon (Si); 0.1-0.6 wt% of manganese (Mn); 0.01% or less of phosphorus (P); 0.01% or less (excluding 0 wt%) of sulfur (S); 0.1% or less (excluding 0 wt%) of soluble aluminum (Al); 0.05-0.5 wt% of copper (Cu); 0.001-0.01 wt% of nitrogen (N); and the remaining consisting of iron (Fe) and inevitable impurities. Moreover, the aluminum clad steel sheet comprises an aluminum clad layer formed on the surface thereof. According to the present invention, an intermetallic compound is not formed on the interface surface between the steel sheet and the aluminum clad layer, thereby securing superior high temperature adhesive strength and durability. Thus, superior high temperature adhesive strength and durability can be improved. |
