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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