| abstract |
The present invention relates to a castable heat resistant aluminium alloy for high temperature applications such as components in combustion engines, in particular for the manufacturing of highly loaded cylinder heads, he alloy comprises the following composition: · Si : 6,5 - 10 wt % • Mg: 0,25 - 0,35 wt % • Cu : 0,3 - 0,7 wt % • Hf : 0,025 - 0,55 wt % Optionally with the addition of: · Ti : 0 - 0,2 wt % • Zr : 0 - 0,3 wt %, the balance being made of Al and unavoidable impurities including Fe. |