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

●Chemical composition of aluminum alloy 2014:

Aluminum Al: balance
Silicon Si: 0.6～1.2
Te mau pereoo veo: 3.9～4.8
Mgum Mg: 0.40～0.8
Zinc Zn: ≤0.30
Manganese Mn: 0.40～1.0
Titanium Ti: ≤0.15
Nickel Ni: ≤0.10
Iron Fe: 0.000～0.700
Nota: single: ≤0.05; total: ≤0.15

●Mechanical properties of aluminum alloy 2014:

Te mau mana'o tauturu no te haapiiraa (MPa): ≥440
Elongation δ5 (%): ≥10
Nota: Longitudinal mechanical properties of bar at room temperature
Hi'oraa rahi: bar diameter (square bar, hexagonal bar inscribed circle diameter) ≤ 22

●Aluminum alloy 2014 characteristics and scope of application:

Ua haapii mai te 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; e haapuaihia te rapaauraa i te ve'ave'a, 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 (tae noa'tu i te anuvera teitei). Heavy Forgings, Plates and Extrusions
Materials are used in aircraft structural parts, multi-stage rocket first-stage fuel tanks and spacecraft parts, Te mau huira, Te mau nota
e te mau tuhaa o te faanahoraa. The corrosion resistance is poor, e nehenehe râ te reira e paruru - maitai - hia na roto i te tapo'iraa ' tu i te reira e te aluminum viivii ore; it is easy to produce corrosion during welding
Cracks, but can be welded or riveted using special techniques. Faaohipa - rahi - hia i roto i te mau fare manureva (skin,
skeleton, rib beam, bulkhead, e te vai atu ra.) Te mau nota, Te mau tuhaa o te mau mauhaa tama'i, Te mau huira pereoo, 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) Te mau mana'o tauturu no te haapiiraa: heating at 350-400°C; Tei te huru o te me'ume'u o te materia, e 30-120min te taime tape'araa;
A tupa'i i te umu i te faito 30-50°C/h e tae atu i te 300°C, e i muri iho i te mata'i rorofa'i.
3) Rapid annealing: heating at 350-460°C; holding time for 30-120min; te mata'i to'eto'e.
4) Te ruhiruhiaraa e te ruauraa: quenching at 495-505°C, water cooling; natural aging at room temperature for 96h.
Hau: aluminum and aluminum alloy extruded rods (≤22mm, H112, T6 No te Pŭpŭ no te Tino)