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7A03 Aluminum Performance

2015-04-20

  Features and Scope:

 

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

 

Mechanical Properties:

 

Shear strength τ (MPa): 284

 

Note: After the wire solution heat treatment to natural aging state shear stable performance

 

Sample size: All wire diameter

 

Heat treatment:

 

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

 

2) quenching and aging: hardening 460 ~ 470 , water cooling; artificial

 

:( Grading aging) Level 1 115 ~ 125 3 ~ 4h heating, Level 2 160 ~ 170 , 3 ~ 5h, air cooling.

 

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

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