Technical Information

Aluminium Alloy // BS-L // 5L34 'F' / 'O' - 1200 - Obsolete

Chemical Element % Present
Titanium (Ti) 0.0 - 0.05
Manganese (Mn) 0.0 - 0.05
Silicon + Iron (Si+Fe) 0.0 - 1.00
Copper (Cu) 0.0 - 0.05
Others (Total) 0.0 - 0.15
Zinc (Zn) 0.0 - 0.10
Other (Each) 0.0 - 0.05
Aluminium (Al) Balance
Cast billets & slabs for hot working and extruded bars, sections and hot-rolled plate for forging shall be supplied non-heat treated. Bars for machining & extruded sections shall be supplied in one of the following conditions: Extruded; Extruded & Drawn; Rolled & Drawn and subsequently straightened. Forgings, unless otherwise agreed in accordance with BS L100, shall be supplied as forged or annealed. No heat treatment is required.
Physical PropertyValue
Density 2.59 Kg/m³
Melting Point 657 °C
Thermal Expansion 23.4 x10^-6 /K
Modulus of Elasticity 69 GPa
Thermal Conductivity 225 W/m.K
Electrical Resistivity 58.5 % IACS
Mechanical PropertyValue
Elongation 20 Min %
Proof Stress 18 Min MPa
Tensile Strength 65 Min MPa
The specification covers forging stock, bars, extruded sections and forgings of 99% aluminium. This specification was declared obsolescent on 01 April 1999. It is no longer recommended for use on new designs.

Applications:
Metal work, license plates, identification plates. Kitchenware, packaging foils, containers, automotive trim, heat exchanger strip, radiator tubes. Aircraft and military highly stressed structures.

Characteristic Properties:
Very good atmospheric corrosion resistance and workability. High thermal conductivity and reflectivity but lower than for 1050A. Very good weldability. Slightly higher strength than 1050A.

Alloy Designations

Aluminium alloy 5L34 - 1200 is covered by Standard BS EN 5L34 (1985) - Now Obsolete.

Temper Types

The most common tempers for 5L34 - 1200 aluminium are as forged 'F' or fully annealed 'O'

  • F - As fabricated
  • O - Soft

Supplied Forms

5L34-1200 aluminium is supplied as forging stock and forgings made from cast billet, extruded stock or rolled plate

  • Bar
  • Extrusions
  • Forgings
  • Plate
  • Castings

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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