3003 Alloy Data Sheet


Aluminium Alloy 3003 is not heat treatable but has good workability. It also has very good resistance to corrosion through the atmosphere. Alloy 3003 is a medium strength alloy.


Aluminium alloy 3003 applications include; decorative trim, awnings, cooking utensils, building industry, heat exchangers & office equipment.

Aerospace materials are covered by the ā€˜Lā€™ series of British standards.

3003 Aluminium Alloy Data Sheet

Properties given are typical and should only be used for comparisons of alloys. Actual values will depend on section specification.

Forming Excellent
Machining Fair
Welding Good
Brazing/Soldering Good
Protective Anodising Good
Aesthetic Anodising Poor
Mechanical Properties
Temper O
0.2% Proof Stress Min N/mm2 35
Ultimate Tensile Strength Min N/mm2 - Max N/mm2 95-135
Chemical Composition EN AW-3003
Si 0.6
Fe 0.7
Cu 0.05-0.20
Mn 1.0-1.15
Zn 0.10
Others (each) 0.5
Others (total) 0.15
Aluminium Remainder

(The chemical composition of aluminium and aluminium alloys is supplied in percentage by mass. Limits are expressed as a maximum unless shown as a range or a minimum.)

Similar and Obsolete Specifications
B-404 UNS A93003
BS N3 AlMn1Cu
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