Aluminium alloy 2014A is a high-strength copper alloy containing approximately 4–5% copper, supplied in the fully heat-treated condition (solution heat-treated and artificially aged). The alloy is normally stocked in the T651 condition, where it is stress relieved by controlled stretching. Exceptions apply for sizes below 10 mm diameter and above 203.2 mm diameter, which are supplied in the T6 condition only. Sizes over 203 mm diameter are manufactured to chemical composition only. Aluminium alloy 2014A offers very good machinability and is commonly used for high-strength components, particularly in the aerospace and defence industries.
Alloy: 2014A
Spec: BS EN 573-3:2009
| Chemical Element | % Present |
|---|---|
| Silicon (Si) | 0.50 – 0.90 |
| Iron (Fe) | 0.00 – 0.50 |
| Copper (Cu) | 3.90 – 5.00 |
| Zinc (Zn) | 0.00 – 0.25 |
| Manganese (Mn) | 0.40 – 1.20 |
| Magnesium (Mg) | 0.20 – 0.80 |
| Titanium (Ti) | 0.00 – 0.15 |
| Chromium (Cr) | 0.00 – 0.10 |
| Nickel (Ni) | 0.00 – 0.10 |
| Titanium + Zirconium (Ti + Zr) | 0.00 – 0.20 |
| Others (Total) | 0.00 – 0.15 |
| Other (Each) | 0.00 – 0.05 |
| Aluminium (Al) | Balance |
| Property | Value |
|---|---|
| Density | 2.82 g/cm³ |
| Modulus of Elasticity | 71 GPa |
| Electrical Resistivity | 0.045 × 10⁻⁶ Ω·m |
| Thermal Conductivity | 138 W/m·K |
| Thermal Expansion | 23 × 10⁻⁶ /K |
| Melting Point | 535 °C |
Spec: 0.4 mm to 6 mm
| Property | Value |
|---|---|
| Tensile Strength | 440 MPa (Min) |
| Proof Stress | 390 MPa (Min) |
| Hardness (Brinell) | 133 HB |
Spec: 6 mm to 12.5 mm
| Property | Value |
|---|---|
| Proof Stress | 395 MPa (Min) |
| Tensile Strength | 450 MPa (Min) |
| Elongation A50 mm | 7% (Min) |
| Hardness (Brinell) | 135 HB |
Spec: 12.5 mm to 40 mm
| Property | Value |
|---|---|
| Proof Stress | 400 MPa (Min) |
| Tensile Strength | 460 MPa (Min) |
| Elongation A | 6% (Min) |
| Hardness (Brinell) | 138 HB |
Spec: 40 mm to 60 mm
| Property | Value |
|---|---|
| Proof Stress | 390 MPa (Min) |
| Tensile Strength | 450 MPa (Min) |
| Elongation A | 5% (Min) |
| Hardness (Brinell) | 135 HB |
Spec: 60 mm to 80 mm
| Property | Value |
|---|---|
| Proof Stress | 380 MPa (Min) |
| Tensile Strength | 435 MPa (Min) |
| Elongation A | 4% (Min) |
| Hardness (Brinell) | 131 HB |
This datasheet relates primarily to the T651 temper. Common tempers for aluminium alloy 2014A include:
