| 摘要 |
The invention relates to a weldable, high-strength aluminium alloy rolled product containing the elements, in weight percent, Si 0.8 to 1.3, Cu 0.2 to 0.45, Mn 0.5 to 1.1, Mg 0.45 to 1.0, Fe 0.01 to 0.3, Zr<0.25, Cr<0.25, Zn<0.35, Ti<0.25, V<0.25, others each<0.05 and total <0.15, b alance aluminium, and further with the proviso that the weight percent of "available Si" is in the range of 0.86 to 1.15, preferably in the range of 0.86 to 1.05. The weig ht percentage ("wt.%") of "available Si" is calculated according to the equatio n:- w.% Si(available)=wt.%Si-(wt.% Fe+wt.% Mn)/6. |
