High-strength aluminium alloy
An aluminum alloy, high-strength technology, applied in the field of aluminum alloys, can solve the problems of low strength of pure aluminum and unsuitable structural materials, and achieve the effect of less cracks
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[0010] The technical solution of the present invention will be clearly and completely described below.
[0011] A high-strength aluminum alloy, its weight percentage is: Si: 0.4%, Fe: ≤0.7%, Cu: 0.15~0.4%, Mn: ≤0.15%, Mg: 0.8~1.2%, Cr: 0.04~0.14%, Zn: ≤0.25%, Ti: ≤0.15%, Pb: 0.2~0.4%, Bi: 0.4~0.8%, the balance is Al and unavoidable impurities.
[0012] The inserts manufactured by the high-strength aluminum alloy disclosed by the present invention have cold insulation on the surface and few cracks, and the tensile strength reaches 290MPa-360MPa, R p0.2 It reaches 240~330MPa, the elongation after fracture is 4%, and the Brinell hardness reaches 85~100HBW.
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