Technical Information

Aluminium Alloy // BS-L // L157 T6 Sheet - 2014A

Chemical Element % Present
Silicon (Si) 0.50 - 0.90
Iron (Fe) 0.0 - 0.50
Copper (Cu) 3.90 - 5.00
Manganese (Mn) 0.40 - 1.20
Chromium (Cr) 0.0 - 0.10
Magnesium (Mg) 0.20 - 0.80
Zinc (Zn) 0.0 - 0.25
Titanium (Ti) 0.0 - 0.15
Titanium + Zirconium (Ti+Zr) 0.0 - 0.20
Aluminium (Al) Balance
Physical PropertyValue
Density 2.80 Kg/m³
Melting Point 640 °C
Thermal Expansion 22.8 x10^-6 /K
Modulus of Elasticity 73 GPa
Thermal Conductivity 155 W/m.K
Electrical Resistivity 40 % IACS

Aluminium alloy L157 – 2014A is a high strength sheet and strip specification.
The standard specifying this grade has been superseded by BSEN 2395

Alloy Designations

Aluminium alloy L157 has similarities to the following standard designations and specifications:  2014A

Temper Types

The most common temper for L157 aluminium is:

  • T6 - Solution heat treated and artificially aged

Supplied Forms

L157 aluminium is supplied as Clad Sheet and Strip.

  • Sheet
  • Strip

Mechanical Properties

Thickness (mm)Proof Strength (Min)Tensile Strength (Min)Elongation % (Min)
Over 0.4 up to & incl. 0.83704306
Over 0.8 up to & incl.1.63804407
Over 1.6 up to & incl. 6.03904407

This Data is indicative only and must not be seen as a substitute for the full specification from which it is drawn. In particular, the mechanical property requirements vary widely with temper, product and product dimensions. The information is based on our present knowledge and is given in good faith. However, no liability will be accepted by the Company is respect of any action taken by any third party in reliance thereon.

As the products detailed may be used for a wide variety of purposes and as the Company has no control over their use; the Company specifically excludes all conditions or warranties expressed or implied by statute or otherwise as to dimensions, properties and/or fitness for any particular purpose.

Any advice given by the Company to any third party is given for that party’s assistance only and without liability on the part of the Company. Any contract between the Company and a customer will be subject to the Company’s Conditions of Sale. The extent of the Company’s liabilities to any customer is clearly set out in those Conditions; a copy of which is available on request.

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