Aluminium Alloy 3003: Manganese alloy: general purpose.
The workhorse aluminium alloy. Approximately 20 % stronger than 1100 with the same excellent formability, specified for cladding, roofing, ducting and general sheet-metal fabrication.
What is Aluminium Alloy 3003?
Aluminium Alloy 3003 is the most widely produced wrought aluminium alloy in the world. The addition of ~1.2 % manganese gives roughly 20 % more strength than 1100 with no measurable loss in formability, weldability or corrosion resistance. 3003 is non-heat-treatable; strength is developed by cold working, expressed as H-tempers (H12, H14, H16, H18, H22, etc.). It is the standard specification for general-purpose sheet, plate and coil where moderate strength, excellent corrosion resistance and easy fabrication are required.
3003 cold-forms, spins, draws, bends and roll-forms beautifully. It welds readily by TIG and MIG with 4043 or 5356 filler. It machines better than 1100 but still benefits from sharp tooling and ample lubrication. Anodises to a clear, slightly milky finish.
Chemical & mechanical data.
Chemical composition
Mechanical properties
How 3003 performs.
Six performance dimensions, rated 1 to 5, to help architects, fabricators and engineers specify with confidence.
Where 3003 is specified.
- Roofing & cladding sheet
- HVAC ducting and trunking
- Chemical equipment and tanks
- Cooking utensils & food containers
- Stucco embossed sheets
- Trailer panels and transport sheet
- Heat exchanger components
Advantages
- Excellent corrosion resistance
- Excellent formability and weldability
- Stronger than 1100 with no loss of workability
- Anodises cleanly for architectural applications
- Most cost-effective general-purpose sheet alloy
Limitations
- Not heat-treatable; strength is gained only by cold work
- Not suited to highly stressed structural assemblies
3003 is supplied to:
- ASTM B209
- EN 485-2
- EN 573-3
- JIS H4000
Supplied to customer requirement.
Alloy 3003 is available in a full range of thicknesses according to customer requirement, with cut-to-length, slitting and custom configuration on request. Mill test certificates (EN 10204 3.1) are issued with every consignment.
Related aluminium alloys.
Commercial purity aluminium
Commercially pure aluminium with excellent corrosion resistance, formability and thermal conductivity. The benchmark for chemical, food and decorative applications.
Painted & coated sheet alloy
A 3xxx alloy with added magnesium, optimised for pre-painted, colour-coated and roll-formed architectural sheet, including roofing, siding, gutters and rainscreen.
Architectural anodising alloy
A low-magnesium 5xxx alloy specifically formulated for bright, even anodising. The benchmark sheet for architectural cladding and decorative trim.
Send your 3003 requirement.
Tell us form (sheet / coil / plate / bar), temper, dimensions and tonnage. We will revert with mill availability and indicative pricing within one working day.