Reference standard: AISI
The alloying element in 2014 is copper, known as hard molybdenum, which has high strength and good cutting processability
Poate sa, but poor corrosion resistance.

●Chemical composition of aluminum alloy 2014:

Aluminiu Al: balance
Siliciu Da: 0.6～1.2
Copper Cu: 3.9～4.8
Magneziu Mg: 0.40～0.8
Zinc Zn: ≤0,30
Mangan Mn: 0.40～1,0
Titan Ti: ≤0,15
Nickel Ni: ≤0,10
Fier Fe: 0.000～0.700
Notă: single: ≤0,05; total: ≤0,15

●Mechanical properties of aluminum alloy 2014:

Rezistența la tracțiune σb (MPa): ≥440
Elongation δ5 (%): ≥10
Notă: Longitudinal mechanical properties of bar at room temperature
Marime de mostra: bar diameter (square bar, hexagonal bar inscribed circle diameter) ≤ 22

●Aluminum alloy 2014 characteristics and scope of application:

The 2014 aluminum alloy is both a hard aluminum alloy and a wrought aluminum alloy in terms of composition. Compared with 2A50, it contains
The copper content is higher, so the strength is higher, and the thermal strength is better, but the plasticity in the hot state is not as good as 2A50, 2014
Aluminum alloy has good machinability, good contact welding, spot welding and roll welding performance, arc welding and gas welding
Poor energy; tratamentul termic poate fi consolidat, there is extrusion effect; corrosion resistance is not high, there is inter-test corrosion during artificial aging
tendency. Used in occasions requiring high strength and hardness (inclusiv temperatura ridicata). Heavy Forgings, Plates and Extrusions
Materials are used in aircraft structural parts, multi-stage rocket first-stage fuel tanks and spacecraft parts, rotile, cadre de camioane
și piesele sistemului de suspensie. The corrosion resistance is poor, dar poate fi protejat eficient prin acoperirea cu aluminiu pur; it is easy to produce corrosion during welding
Cracks, but can be welded or riveted using special techniques. Utilizat pe scară largă în structurile aeronavelor (skin,
skeleton, rib beam, bulkhead, etc.) nituri, componente de rachetă, roți de camion, propeller components and other structures
member.

●2014 aluminum heat treatment specification:

1) Homogenization annealing: heating at 475-490°C; holding for 12-14 hours; furnace cooling.
2) Recoacere completă: heating at 350-400°C; în funcţie de grosimea efectivă a materialului, timpul de mentinere este de 30-120 min;
Se răcește cu cuptorul la o viteză de 30-50°C/h până la 300°C, iar apoi se răcește cu aer.
3) Recoacere rapidă: heating at 350-460°C; holding time for 30-120min; răcire cu aer.
4) Stingere și îmbătrânire: quenching at 495-505°C, water cooling; natural aging at room temperature for 96h.
Stat: aluminum and aluminum alloy extruded rods (≤22mm, H112, T6 state)