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7A03 Aluminum Performance


Features and Scope:


It belongs to Al-Zn-Mg-Cu based hard aluminum alloy rivets. Quenching artificial aging state can be riveting, high-strength rivets material temperature is below 100 , the. Heat treatment can be enhanced, high shear strength, corrosion resistance and machinability is still good, quenching using artificial aging state; rivet rivets, without restrictions after the heat treatment time; the general corrosion resistance is acceptable, there is stress corrosion cracking tendencies.


Mechanical Properties:


Shear strength τ (MPa): 284


NOTE: After the wire solution heat treatment to natural aging stable-state shear


Sample size: All wire diameter


Heat Specifications:


1) Complete annealing: heating 390 ~ 430 ; with the effective thickness of different materials, holding time between the 30 ~ 120min; with / h speed of 30 ~ 50 , with furnace cooling to below 150 , and then air cooled.


2) Quenching and aging: hardening 460 ~ 470 , water-cooled; artificial


( Aging stage aging) Level 1 115 ~ 125 3 ~ 4h heating, Level 2 160 ~ 170 , 3 ~ 5h, cooled.


Status: Rivet aluminum and aluminum alloy wire (T6 state)


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