7A04 aluminum rod (heat-resistant duralumin price)

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It is an ultra-high-strength aluminum alloy, also known as superduralumin. It is the most mature and widely used alloy among superduralumins. High strength, good heat treatment strengthening effect, medium plasticity in annealed and newly quenched states. Unlike hard aluminum, the corrosion resistance in artificial aging state is better than that in natural aging state, and the natural aging process is slow and takes several months. Only in this way can the peak age hardening be reached, so it is used in the quenching artificial aging state. Its disadvantages are low structural stability, low low-frequency fatigue strength, and tendency to stress corrosion cracking. The alloy spot welding has good weldability but poor gas welding. The machinability after heat treatment is good, but the machinability after annealing is not good.
Chemical Composition
Silicon
Iron
Copper
Manganese
Magnesium
Chromium
Zinc
Titanium
Aluminum balance
Mechanical properties
Tensile strength
Elongation stress
Elongation
Heat treatment specifications
) Homogenization annealing heating ~ ℃ insulation ~ furnace cold.
) Complete annealing and heating, insulation at ℃, furnace cooling to ℃ and air cooling.
) Quenching and aging quenching ~ ℃, water-cooled artificial aging (aluminum-coated plates) ~ ℃, (uncoated aluminum profiles) ~ ℃, (semi-finished products) graded ~ ℃ heating, grade ~ ℃ air cooling.
Theoretical weight calculation formula
Plate length*width*height*density/
Rod radius*radius*density/
Plate stock specification thickness)
Bar stock specification Diameter)
Wire spot specifications Wire diameter)