An unalloyed (‘pure’) non-heat treatable rolled aluminium sheet engineered for general sheet metal work where high mechanical properties are not required. Internationally recognised grade EN AW 1050A H14 – 99.50% pure aluminium (Al 99.5) sheet strain hardened to the half-hard temper. The previous BS specification was known as S1B and the half-hard temper was known as H4, giving S1B H4. Toros range of 1050A will meet all appropriate national/international standards.
Alloy 1050A is typically used for:
Alloy 1050A
Spec: weight %
| Chemical Element | % Present |
|---|---|
| Silicon (Si) | 0.0 - 0.25 |
| Iron (Fe) | 0.0 - 0.40 |
| Copper (Cu) | 0.0 - 0.05 |
| Manganese (Mn) | 0.0 - 0.05 |
| Magnesium (Mg) | 0.0 - 0.05 |
| Zinc (Zn) | 0.0 - 0.07 |
| Titanium (Ti) | 0.0 - 0.05 |
| Others (Each) | 0.0 - 0.03 |
| Aluminium (Al) | 99.50 min |
Alloy 1050A
| Property | Value |
|---|---|
| Thermal Conductivity | 229 W/m·K |
| Melting Range | 645 - 657 °C |
| Electrical Conductivity | 58.4% IACS |
| Coefficient of Thermal Expansion | 23.5 x 10⁻⁶ / K |
| Modulus of Elasticity | 69,000 MPa (69 GPa) |
Condition: Typical Mechanical Properties
| Property | Value |
|---|---|
| Tensile Strength | 100 - 135 MPa |
| Yield Strength | Min 75 MPa (approx. only) |
| Shear Strength | 70 MPa |
| Elongation | 4 - 8 % (A50) |
| Hardness Brinell | 35 HB |
1050A is easily welded by MIG or TIG processes, with a recommended filler metal of 1050A (S-Al99.5) or 4043A (S-AlSi5) for welding to 1050A structures. A good weld is likely to have a strength of up to 65MPa, although this will be dependent on the type and quality of welding.
