2A10 aluminum standard: GB / T 3196-1982 ● Features and Scope: aluminum 2A10 rivets alloys. Higher shear strength, annealing, just quenching, aging and thermal state has enough riveting rivets required for plasticity; after quenching and aging rivets riveting, riveting process is not subject to heat treatment after the time limit. Aluminum 2A10 weldability 2A11, rivets, corrosion stability and 2A01, 2A11 same. When heated above 100 ° C, the intergranular corrosion tendency. Chemical composition: Al of Al: margin silicon Si: ≤ 0.25 Copper Cu: 3.9 ~ 4.5 Mg Mg: 0.15 to 0.30 Zn of Zn: ≤ 0.10 Mn of Mn: 0.30 ~ 0.50 Titanium Ti: ≤ 0.15 Fe: 0.000 ~ 0.200 Notes: single: ≤ 0.05; Total: ≤ 0.10 ● mechanical properties: the shear strength τ (MPa): ≥ 245 Note: wire solid solution heat treatment after natural aging to the basic steady-state shear behavior of specimen dimensions: wire diameter ≥ 8.0 ● heat treatment specification : 1) complete annealing: heating to 390 ~ 430 ℃; with material effective thickness, holding time 30 ~ 120min; 30 ~ 50 ° C / h speed with furnace cooling to 300 ℃, and then air-cooled. 2) rapid thermal annealing: heating the 350 ~ 370 ℃; with different effective material thickness, holding time 30 ~ 120min; air-cooled. 3) quenching and aging: hardening 510 ~ 520 ° C, water-cooled; artificial aging 70 ~ 80 ℃, 24h, air-cooled; natural aging at room temperature for 240h. Status: rivets, aluminum and aluminum alloy wire (≥ 8.0mm, T4, state 

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