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

●Chemical composition of aluminum alloy 2014:

Aluminium Al: balance
Silicon E: 0.6～1.2
Koporo Cu: 3.9～4.8
Magnesium Mg: 0.40～0.8
Zinc Zn: ≤0.30
Manganese Mn: 0.40≥1.0
Titanium Ti: ≤0.15
Nickel Ni: ≤0.10
Tšepe Fe: 0.000～0.700
Hlokomela: single: ≤0.05; total: ≤0.15

●Mechanical properties of aluminum alloy 2014:

Matla a tsitsitseng σb (MPa): ≥440
Elongation δ5 (%): ≥10
Hlokomela: Longitudinal mechanical properties of bar at room temperature
Boholo ba mohlala: 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; phekolo ea mocheso e ka matlafatsoa, 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 (ho kenyeletsa mocheso o phahameng). Heavy Forgings, Plates and Extrusions
Materials are used in aircraft structural parts, multi-stage rocket first-stage fuel tanks and spacecraft parts, mabili, liforeimi tsa literaka
le likarolo tsa tsamaiso ea ho emisa. The corrosion resistance is poor, empa e ka sireletsoa ka katleho ka ho e koahela ka aluminium e hloekileng; it is easy to produce corrosion during welding
Cracks, but can be welded or riveted using special techniques. E sebelisoa haholo meahong ea lifofane (skin,
skeleton, rib beam, bulkhead, etc.) rivets, likarolo tsa metsu, mabili a literaka, 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) Ho tlatsa ka botlalo: heating at 350-400°C; ho itšetlehile ka botenya bo sebetsang ba thepa, nako ea ho tšoara ke 30-120min;
Pholisa ka sebōpi ka lebelo la 30-50°C/h ho ea ho 300°C, ebe moea o pholile.
3) Ho koenya ka potlako: heating at 350-460°C; holding time for 30-120min; phodiso ya moya.
4) Ho tima le ho tsofala: quenching at 495-505°C, water cooling; natural aging at room temperature for 96h.
Naha: aluminum and aluminum alloy extruded rods (≤22mm, H112, T6 state)