ALUMINIUM-SILICON ALLOY SHEET FOR MECHANICAL, AIRCRAFT AND SPACE APPLICATIONS

摘要

the invention relates to a sheet of aluminium alloy treated by solution heat, quenching and eventually back to obtain a yield stress 320 mpa.for mechanical engineering, aeronautics and space), composition (by weight): 6.5 to 11%, mg: 0.5 to 1.0%, cu: fe: 0.8% and 0.3%, mn: 0,5% and / or cr 0.5%, sr 8 to 0..025%, 0.02%, total it: 0.2%, aluminum.the plate according to the invention have a high modulus of elasticity and a low density, and can be used in particular for the underside of wings and fuselage of the aircraft surface.as for cryogenic tanks and rockets.