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

●Chemical composition of aluminum alloy 2014:

Aluminium Al: balance
Silikon Ya: 0.6～1.2
Kuprum Cu: 3.9～4.8
Magnesium Mg: 0.40～0.8
Zink Zn: ≤0.30
Mangan Mn: 0.40~1.0
Titanium Ti: ≤0.15
Nickel Ni: ≤0.10
Fe besi: 0.000～0.700
Catatan: bujang: ≤0.05; jumlah: ≤0.15

●Mechanical properties of aluminum alloy 2014:

Kekuatan tegangan σb (Mpa): ≥440
Pemanjangan δ5 (%): ≥10
Catatan: Longitudinal mechanical properties of bar at room temperature
Saiz sampel: 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
Aloi aluminium mempunyai kebolehmesinan yang baik, good contact welding, spot welding and roll welding performance, arc welding and gas welding
Poor energy; rawatan haba boleh dikuatkan, 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 (termasuk suhu tinggi). Heavy Forgings, Plates and Extrusions
Materials are used in aircraft structural parts, multi-stage rocket first-stage fuel tanks and spacecraft parts, roda, rangka trak
dan bahagian sistem penggantungan. The corrosion resistance is poor, tetapi ia boleh dilindungi dengan berkesan dengan menutupnya dengan aluminium tulen; it is easy to produce corrosion during welding
Cracks, but can be welded or riveted using special techniques. Digunakan secara meluas dalam struktur pesawat (skin,
skeleton, rib beam, bulkhead, dan lain-lain.) rivet, komponen peluru berpandu, roda lori, propeller components and other structures
member.

●2014 aluminum heat treatment specification:

1) Homogenization annealing: heating at 475-490°C; holding for 12-14 Jam; furnace cooling.
2) Penyepuhlindapan lengkap: heating at 350-400°C; bergantung pada ketebalan bahan yang berkesan, masa penahanan ialah 30-120min;
Sejukkan dengan relau pada kelajuan 30-50°C/j hingga 300°C, dan kemudian sejuk udara.
3) Penyepuhlindapan pantas: heating at 350-460°C; holding time for 30-120min; penyejukan udara.
4) Pelindapkejutan dan penuaan: quenching at 495-505°C, water cooling; natural aging at room temperature for 96h.
negeri: aluminum and aluminum alloy extruded rods (≤22mm, H112, keadaan T6)