Feature: it is a kind of high strength duralumin and can be strengthened by heat treatment. 2A12 aluminum alloy has good spot welding performance, and there is a tendency to form intergranular cracks when gas welding and argon arc welding are used. 2A12 aluminum alloy has good machinability after cold work hardening.
Application: it is applied to the occasions requiring high strength and hardness (including high temperature). Heavy forgings, thick plates and extruded materials are used for aircraft structural parts, multi-stage rocket first stage fuel tank and spacecraft parts, wheel, truck frame and suspension system parts.
Feature: it can be used as 2A50 alloy to make forged aluminum bars. The difference between 2A14 and 2A50 is that it has high copper content, so it has high strength and good thermal strength. But the plasticity in hot state is not as good as 2A50. The alloy has good machinability, resistivity, good resistance to spot welding and seam welding, and poor resistance to electric arc welding and gas welding.
Application: 2A14 is widely used in free forging and die forging with complex shape.
Specification parameters and inventory
Feature: 2014 aluminum alloy bar belongs to duralumin alloy and can be used for forging aluminum bar. Compared with 2A50, it has higher strength and better thermal strength, but its plasticity in hot state is not as good as 2A50. 2014 aluminum bar has good machinability, good contact welding, spot welding and roll welding performance, and poor electric arc welding and gas welding performance. It can be strengthened by heat treatment and has extrusion effect.