Reference standard: AISI
The alloying element in 2014 is copper, known as hard molybdenum, which has high strength and good cutting processability
Voi, mutta huono korroosionkestävyys.

●Chemical composition of aluminum alloy 2014:

Alumiini Al: balance
Silikon Kyllä: 0.6～1.2
Kupari Cu: 3.9～4.8
Magnesium Mg: 0.40～0.8
Sinkki Zn: ≤0,30
Manganese Mn: 0.40～1,0
Titaani Ti: ≤0,15
Nickel Ni: ≤0,10
Iron Fe: 0.000～0.700
Huomautus: single: ≤0,05; kaikki yhteensä: ≤0,15

●Mechanical properties of aluminum alloy 2014:

Vetolujuus σb (MPa): ≥440
Elongation δ5 (%): ≥10
Huomautus: Longitudinal mechanical properties of bar at room temperature
Otoskoko: 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; lämpökäsittelyä voidaan vahvistaa, 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 (mukaan lukien korkea lämpötila). Heavy Forgings, Plates and Extrusions
Materials are used in aircraft structural parts, multi-stage rocket first-stage fuel tanks and spacecraft parts, pyörät, kuorma-autojen rungot
ja jousitusjärjestelmän osat. The corrosion resistance is poor, mutta se voidaan suojata tehokkaasti peittämällä se puhtaalla alumiinilla; it is easy to produce corrosion during welding
Cracks, but can be welded or riveted using special techniques. Käytetään laajasti lentokoneiden rakenteissa (skin,
skeleton, rib beam, bulkhead, jne.) niitit, ohjusten komponentit, kuorma-auton pyörät, 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) Täydellinen hehkutus: heating at 350-400°C; riippuen materiaalin tehokkaasta paksuudesta, pitoaika on 30-120 min;
Jäähdytä uunissa nopeudella 30-50°C/h 300°C:een, ja sitten ilmajäähdyttää.
3) Nopea hehkutus: heating at 350-460°C; holding time for 30-120min; ilmajäähdytys.
4) Sammuttaminen ja vanheneminen: quenching at 495-505°C, water cooling; natural aging at room temperature for 96h.
Osavaltio: aluminum and aluminum alloy extruded rods (≤22mm, H112, T6 state)