Aluminium, BS-L
L102 T4511 Bar
High strength aerospace aluminium alloy mainly used for structural components.
L102 is used in a wide variety of high strength applications across numerous industries including defence and construction.
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L102 T4511 Aluminium Related Specifications
| System / Standard | Country / Region | Grade / Designation |
| AA | USA | 2014A-T4511 |
| UNS | International | A92014 (2014A-T4511) |
| EN / DIN | Europe | EN AW-2014A-T4511 / 3.1255 |
| EN Name | Europe | AlCu4SiMg-T4511 |
| GB | China | 2A14-T4511 |
| JIS | Japan | A2014-T4511 |
| BS (Aerospace) | UK | L102-T4511 (2014A extruded bars & sections) |
| AFNOR | France | A-U4SG-T4511 |
Properties
Chemical Composition
Alloy L102
BS L102 (1971)
| Chemical Element | % Present |
| Copper (Cu) | 3.90 - 5.00 |
| Chromium (Cr) | 0.00 - 0.10 |
| Iron (Fe) | 0.00 - 0.50 |
| Magnesium (Mg) | 0.20 - 0.80 |
| Manganese (Mn) | 0.40 - 1.20 |
| Nickel (Ni) | 0.00 - 0.20 |
| Lead (Pb) | 0.00 - 0.05 |
| Silicon (Si) | 0.50 - 0.90 |
| Tin (Sn) | 0.00 - 0.05 |
| Zinc (Zn) | 0.00 - 0.20 |
| Titanium + Zirconium (Ti+Zr) | 0.00 - 0.20 |
| Aluminium (Al) | Balance |
Mechanical Properties
Alloy L102 - Mechanical Properties of T4511 temper at various diameters
BS L102 (1971)
| Mechanical Property | Value |
| <10mm Proof Stress | 235 Min |
| < 10mm Tensile Strength | 370 Min |
| < 10mm Elongation | 11% Min |
| 10mm - 20mm Proof Stress | 260 Min |
| 10mm - 20mm Tensile Strength | 400 Min |
| 10mm - 20mm Elongation | 11% Min |
| 20mm - 75mm Proof Stress | 270 Min |
| 20mm - 75mm Tensile Strength | 410 Min |
| 20mm - 75mm Elongation | 14% min |
| 75mm - 150mm Proof Stress | 260 Min |
| 75mm - 150mm Tensile Strength | 400 Min |
| 75mm - 150mm Elongation | 12% Min |
| 150mm - 200mm Proof Stress | 230 Min |
| 150mm - 200mm Tensile Strength | 370 Min |
| 150mm - 200mm Elongation | 8% min |
General Physical Properties
Alloy L102
BS L102 (1971)
| Physical Property | Value |
| Density | 2800 g/cm³ |
| Melting Point | 640 °C |
| Thermal Expansion | 22.8 x 10-6/K |
| Modulus of Elasticity | 73000 GPa |
| Thermal Conductivity | 134 W/m.K |
Applications
- High strength structural components
- Aircraft (e.g. fittings and wheels)
- Military vehicles & bridges
- Forgings for trucks and machinery (hydraulic etc)
- Weapons manufacture
- Structural applications
Characteristics
- Heat treatable alloy
- High mechanical strength slightly higher than 2011 and 2017A
