C - Chemistry – Metallurgy – 22 – C
Patent
C - Chemistry, Metallurgy
22
C
C22C 21/08 (2006.01)
Patent
CA 2556645
In an aluminium alloy of type AlMgSi with good creep strength at elevated temperatures for the production of castings subject to high thermal and mechanical stresses the contents of the alloying elements magnesium and silicon in % w/w in a Cartesian coordinate system are limited by a polygon A with the coordinates [Mg; Si] [8.5; 2,7] [8.5; 4,7] [6.3; 2,7] [6.3; 3.4] and that the alloy also contains 0.1 to 1% w/w manganese max. 1% w/w iron max. 3% w/w copper max. 2% w/w nickel max. 0.5% w/w chromium max. 0.5% w/w cobalt max. 0.2% w/w zinc max. 0.2% w/w titanium max. 0.5% w/w zirconium max. 0.008% w/w beryllium max. 0.5% w/w vanadium as well as aluminium remainder rest with further elements and manufacturing -related impurities of individually max. 0.05% w/w and max. 0.2% w/w in total. The alloy is suitable in particular for the production of cylinder crankcases by the pressure die casting method.
Aluminium Rheinfelden Gmbh
Norton Rose Or S.e.n.c.r.l. S.r.l./llp
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