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

●Chemical composition of aluminum alloy 2014:

Aluminium Al: balance
Silicium Oui: 0.6～1.2
Cuivre Cu: 3.9～4.8
Magnésium mg: 0.40～0.8
ZincZn: ≤0,30
Manganèse Mn: 0.40~1,0
Titane Ti: ≤0,15
Nickel Ni: ≤0,10
Fer à repasser: 0.000～0.700
Note: single: ≤0,05; total: ≤0,15

●Mechanical properties of aluminum alloy 2014:

Résistance à la traction σb (MPa): ≥440
Allongement δ5 (%): ≥10
Note: Longitudinal mechanical properties of bar at room temperature
Taille de l'échantillon: bar diameter (square bar, hexagonal bar inscribed circle diameter) ≤ 22

●Aluminum alloy 2014 characteristics and scope of application:

Le 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
L'alliage d'aluminium a une bonne usinabilité, good contact welding, spot welding and roll welding performance, arc welding and gas welding
Poor energy; le traitement thermique peut être renforcé, 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 (y compris haute température). Heavy Forgings, Plates and Extrusions
Materials are used in aircraft structural parts, multi-stage rocket first-stage fuel tanks and spacecraft parts, roues, châssis de camion
et pièces du système de suspension. The corrosion resistance is poor, mais il peut être efficacement protégé en le recouvrant d'aluminium pur; it is easy to produce corrosion during welding
Cracks, but can be welded or riveted using special techniques. Largement utilisé dans les structures aéronautiques (skin,
skeleton, rib beam, bulkhead, etc.) rivets, composants de missiles, roues de camion, 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) Recuit complet: heating at 350-400°C; en fonction de l'épaisseur effective du matériau, le temps de maintien est de 30 à 120 minutes;
Refroidir au four à une vitesse de 30-50°C/h à 300°C, puis refroidi à l'air.
3) Recuit rapide: heating at 350-460°C; holding time for 30-120min; refroidissement par air.
4) Trempe et vieillissement: quenching at 495-505°C, water cooling; natural aging at room temperature for 96h.
État: aluminum and aluminum alloy extruded rods (≤22mm, H112, T6 state)