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

●Chemical composition of aluminum alloy 2014:

Aluminium Al: balance
Silizium Ja: 0.6～1.2
Kupfer Cu: 3.9～4.8
Magnesium Mg: 0.40～0.8
Zink Zn: ≤0,30
Mangan Mn: 0.40~1,0
Titan Ti: ≤0,15
Nickel Ni: ≤0,10
Eisen Fe: 0.000～0.700
Notiz: single: ≤0,05; gesamt: ≤0,15

●Mechanical properties of aluminum alloy 2014:

Zugfestigkeit σb (MPa): ≥440
Dehnung δ5 (%): ≥10
Notiz: Longitudinal mechanical properties of bar at room temperature
Probengröße: bar diameter (square bar, hexagonal bar inscribed circle diameter) ≤ 22

●Aluminum alloy 2014 characteristics and scope of application:

Der 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; Wärmebehandlung kann gestärkt werden, 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 (einschließlich hoher Temperaturen). Heavy Forgings, Plates and Extrusions
Materials are used in aircraft structural parts, multi-stage rocket first-stage fuel tanks and spacecraft parts, Räder, LKW-Rahmen
und Teile des Aufhängungssystems. The corrosion resistance is poor, Es kann jedoch wirksam geschützt werden, indem es mit reinem Aluminium abgedeckt wird; it is easy to produce corrosion during welding
Cracks, but can be welded or riveted using special techniques. Weit verbreitet in Flugzeugstrukturen (skin,
skeleton, rib beam, bulkhead, usw.) Nieten, Raketenkomponenten, LKW-Räder, 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) Vollständiges Glühen: heating at 350-400°C; abhängig von der effektiven Dicke des Materials, die Haltezeit beträgt 30-120min;
Mit dem Ofen bei einer Geschwindigkeit von 30-50°C/h auf 300°C abkühlen, und dann an der Luft abkühlen.
3) Schnelles Glühen: heating at 350-460°C; holding time for 30-120min; Luftkühlung.
4) Abschrecken und Altern: quenching at 495-505°C, water cooling; natural aging at room temperature for 96h.
Zustand: aluminum and aluminum alloy extruded rods (≤22mm, H112, T6 state)