2a12 products are high-strength duralumin, which can be strengthened by heat treatment and has good spot weldability. There is a tendency to form intergranular cracks when using gas welding and argon arc welding; 2A12 aluminum alloy pipe tube have good machinability after cold work hardening. The corrosion resistance is not high, and anodizing treatment and painting methods are often used, or the surface is coated with aluminum layer to improve the corrosion resistance.
Material state 0, T3, T4, T351, H112
Tensile strength σ b (MPa) 425, yield strength σ 0.2 (MPa) 275, elongation δ 5 (%) 12, hardness (HB) 120
Extruded tube outer diameter φ 20mm' 300mm
Outer diameter of seamless pipe φ 20mm^ 600mm
Large-caliber aluminum tubes are customized according to customer requirements, and delivery is fast
Typical use molds, precision parts, etc.
2A12 aluminum alloy pipe tube is mainly used for alloy castings of structural parts such as aircraft wall panels, front beams, joints, pillars and landing gears, beauty equipment, and notebook shells. Used to make various high-load parts and components (but not stamping forgings) such as aircraft skeleton parts, skins, bulkheads, ribs, spars, rivets and other working parts below 150°C.