Reference standard: AISI
The alloying element in 2014 is copper, known as hard molybdenum, which has high strength and good cutting processability
Can, ale špatná odolnost proti korozi.

●Chemical composition of aluminum alloy 2014:

Hliník Al: balance
Silikon Ano: 0.6～1.2
Měď Cu: 3.9～4.8
Hořčík Mg: 0.40～0.8
Zinek Zn: ≤0.30
Mangan Mn: 0.40～1.0
Titan Ti: ≤0,15
Nickel Ni: ≤0,10
Železo Fe: 0.000～0.700
Poznámka: singl: ≤0,05; celkový: ≤0,15

●Mechanické vlastnosti hliníkové slitiny 2014:

Pevnost v tahu σb (MPa): ≥440
Tažnost δ5 (%): ≥10
Poznámka: Longitudinal mechanical properties of bar at room temperature
Velikost vzorku: 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
Hliníková slitina má dobrou obrobitelnost, good contact welding, spot welding and roll welding performance, arc welding and gas welding
Poor energy; tepelné zpracování může být zesíleno, 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 (včetně vysoké teploty). Heavy Forgings, Plates and Extrusions
Materials are used in aircraft structural parts, multi-stage rocket first-stage fuel tanks and spacecraft parts, kola, rámy nákladních automobilů
a díly závěsného systému. The corrosion resistance is poor, ale lze jej účinně chránit pokrytím čistým hliníkem; it is easy to produce corrosion during welding
Cracks, but can be welded or riveted using special techniques. Široce používané v leteckých konstrukcích (skin,
skeleton, rib beam, bulkhead, atd.) nýty, součásti raket, kola nákladních automobilů, propeller components and other structures
member.

●2014 aluminum heat treatment specification:

1) Homogenization annealing: heating at 475-490°C; holding for 12-14 hodin; furnace cooling.
2) Kompletní žíhání: heating at 350-400°C; v závislosti na efektivní tloušťce materiálu, doba výdrže je 30-120 minut;
Chladit v peci rychlostí 30-50 °C/h až 300 °C, a poté ochlazovat vzduchem.
3) Rychlé žíhání: heating at 350-460°C; holding time for 30-120min; chlazení vzduchem.
4) Kalení a stárnutí: quenching at 495-505°C, water cooling; natural aging at room temperature for 96h.
Stát: aluminum and aluminum alloy extruded rods (≤22mm, H112, Stav T6)