Aluminium 2014A
Aluminium 2014A T651 Sheet & Plate
A robust alloy containing 4 to 5% copper is available in extruded bar and profile forms, fully heat-treated (solution heat-treated and artificially aged). It is typically stocked in the T651 condition, which means it has been stress-relieved by controlled stretching, except for sizes under 10mm in diameter and over 203.2mm in diameter, which are only available in T6 condition. Sizes over 203.2mm in diameter are produced based solely on their chemical composition.
The Aluminium 2014A alloy is known for its excellent machinability. It is commonly used in high-strength components, particularly within the aerospace and defence sectors.
Chemical Composition
Chemical Composition
Spec: BS EN 573-3:2009
Alloy 2014
| Chemical Element | % Present |
| Silicon (Si) | 0.50 - 0.90 |
| Iron (Fe) | 0.0 - 0.50 |
| Copper (Cu) | 3.90 - 5.00 |
| Zinc (Zn) | 0.0 - 0.25 |
| Manganese (Mn) | 0.40 - 1.20 |
| Magnesium (Mg) | 0.20 - 0.80 |
| Titanium (Ti) | 0.0 - 0.15 |
| Others (Total) | 0.0 - 0.15 |
| Chromium (Cr) | 0.0 - 0.10 |
| Nickel (Ni) | 0.0 - 0.10 |
| Other (Each) | 0.0 - 0.05 |
| Titanium + Zirconium (Ti+Zr) | 0.0 - 0.20 |
| Aluminium (Al) | Balance |
Plate - 6mm to 12.5mm
| Mechanical Property | Value |
| Proof Stress | 395 Min MPa |
| Tensile Strength | 450 Min MPa |
| Elongation A50 mm | 7 Min % |
| Hardness Brinell | 135 HB |
Plate - 12.5mm to 40mm
| Mechanical Property | Value |
| Proof Stress | 400 Min MPa |
| Tensile Strength | 460 Min MPa |
| Hardness Brinell | 138 HB |
| Elongation A | 6 Min % |
Plate - 40mm to 60mm
| Mechanical Property | Value |
| Proof Stress | 390 Min MPa |
| Tensile Strength | 450 Min MPa |
| Hardness Brinell | 135 HB |
| Elongation A | 5 Min % |
Plate - 60mm to 80mm
| Mechanical Property | Value |
| Proof Stress | 380 Min MPa |
| Tensile Strength | 435 Min MPa |
| Hardness Brinell | 131 HB |
| Elongation A | 4 Min % |
Properties
Aluminium 2014A is an aluminium-copper alloy known for its high strength and excellent machinability. Here are some of its key properties:
Properties
| Physical Property | Value |
| Density | 2.82 g/cm³ |
| Modulus of Elasticity | 71 GPa |
| Electrical Resistivity | 0.045 x10^-6 Ω .m |
| Thermal Conductivity | 138 W/m.K |
| Thermal Expansion | 23 x10^-6 /K |
| Melting Point | 535 °C |
Aluminium 2014A is suitable for applications requiring high strength and good machinability, especially in the aerospace and defence industries.
Temper Types
This above data relates to temper T651. The most common temper for aluminium alloy 2014A are:
- T6 - Solution heat-treated and artificially aged
- T3 - Solution heat treated, cold worked and naturally aged
- T6511 - Solution heat treated and stress-relieved by stretching then artificially aged with minor straightening after aging
- T651 - Solution heat treated, stress relieved by stretching then artificially aged
These temper designations indicate the specific heat treatment and mechanical working processes the alloy has undergone to achieve certain mechanical properties.
Weldability
Brazing & Soldering - Not recommended
Oxygen - Not recommended
Inert Gas - Not recommended
Resistance, Spot, Beam - Excellent
Surface Treatment
Anodising
- Protective - Fair
- Bright - Unsuitable
- Hard - Good
