Nameplates, traffic (road) signs, architectural paneling. Welded tubes, chemical industry, irrigation. Offshore applications, welded structures. Pressure vessels, aircraft components.
Very good corrosion resistance to seawater and marine and industrial atmosphere. Very good weldability. Medium high strength alloy for sheet products slightly lower than 5086. Medium high fatigue strength. Good cold formability.
|Chemical Element||% Present|
|Other (Each)||0.05 max|
|Others (Total)||0.15 max|
|Zinc (Zn)||0.15 max|
|Titanium (Ti)||0.15 max|
|Copper (Cu)||0.15 max|
|Chromium (Cr)||0.15 max|
|Silicon (Si)||0.4 max|
|Iron (Fe)||0.5 max|
|Manganese (Mn)||0.1 - 0.5|
|Magnesium (Mg)||1.7 - 2.4|
Forging stock: Cast billets and slabs for hot working and extruded bars, sections and hot-rolled plate for forging shall be supplied non-heat treated. Bars for machining and extruded sections shall be supplied in one of the following conditions: Extruded and subsequently straightened; Extruded and drawn and subsequently straightened; Rolled and drawn and subsequently straightened. Note: The material may be annealed before or after straightening.
Aluminium alloy L44 - 5251 is covered by Standard BS EN 5L44 (1985) - Now Obsolete
The most common tempers for L44 - 5251 aluminium forging stock as as-forged ('F')
L44 - 5251 aluminium is supplied as forging stock made from cast billet, extrusion or rolled plate
Forging Stock -
|Elongation A50 mm||14 Min %|
|Elongation A||16 Min %|
|Tensile Strength||170 Min N/mm2|
|0.2% Proof Stress||60 Min N/mm2|
Forgings, unless otherwise agreed in accordance with BS L100, shall be supplied as forged or annealed. No heat treatment is required. This specification covers forging stock, bars, extruded sections and forgings of aluminium - 2.25% magnesiom alloy.