Year1
- 产地：
- 重庆
- 厂家：
- 西南
- 型号：
- 2A12
Aluminum alloy
Characteristics and uses
Standard: B/ - Replaces the old B/ -
Characteristics and scope of application:
Aluminum alloy is a high-strength hard material Aluminum cannot be strengthened by heat treatment. Aluminum alloy spot welding has good weldability. There is a tendency to form intergranular cracks when using gas welding and argon arc welding. The machinability of aluminum alloy after cold work hardening is still good. If the corrosion resistance is not high, anodizing and painting methods are often used, or an aluminum layer is added to the surface to improve corrosion resistance.
Usage:
Usage: It is mainly used to make various high-load parts and components (but not including stampings and forgings), such as aircraft skeleton parts, skins, partitions, ribs, beams, rivets, etc. for work below ℃. Component.
Chemical composition:
Aluminum: balance aluminum alloy
Silicon: &;.
Copper: .～.
Magnesium: .～.
Zinc: &;.
Manganese: .~.
Titanium: &;.
Nickel: &;.
Iron.~ .
Iron+nickel+.~ .< br/> Note: Individual:&;.;Total:&;.
Mechanical properties
Mechanical properties of aluminum alloy:
Tensile strength b ():
Conditional yield strength. ():
Elongation (%):
Note: Longitudinal mechanical properties of the rod at room temperature
Sample size: Rod diameter (square rod, hexagonal rod inscribed circle diameter)&;
Heat treatment specifications
Aluminum alloy heat treatment specifications:
) Homogenization annealing: heating ~ ℃; insulation ~; furnace cooling.
) Complete annealing: heating to ~℃; holding time ~; furnace cooling to °C and air cooling.
) Rapid annealing: heating to ~℃; holding time to ~; air cooling.
)Quenching and aging: quenching ~ ℃ water cooling; artificial aging ~ ℃ ~ air cooling; natural aging: room temperature.
Aluminum alloy spot specifications:
Plate spot specifications: .-(thickness) Width:
Bar spot specifications: .-(diameter) Length:
Wire rod spot specifications: .- (Wire diameter) Length: no limit
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