Aluminium, Commercial Alloy
3003 O Sheet
A general purpose alloy with moderate strength in the soft O condition.
Aluminium alloy 3003 is a medium strength alloy with very good resistance to atmospheric corrosion and very good weldability as well as good cold formability. It has better mechanical properties, especially at elevated temperatures than the 1000 series alloys.
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PLEASE NOTE
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3003 O Aluminium Related Specifications
| System / Standard | Country / Region | Grade / Designation |
| AA | USA | 3003-O |
| UNS | International | A93003 (3003-O) |
| EN / DIN | Europe | EN AW-3003-O / 3.0517 |
| EN Name | Europe | AlMn1Cu-O |
| GB | China | 3003-O |
| JIS | Japan | A3003-O |
| DIN | Germany | 3.0517 (AlMn1Cu-O) |
| BS | UK | 31000-O (equivalent to 3003-O) |
| AFNOR | France | A-M1-O |
Properties
Chemical Composition
Alloy 3003
| Chemical Element | % Present |
| Others (Total) | 0.00 - 0.15 |
| Cobalt (Co) | 0.05 - 0.20 |
| Hydrogen (H) | 0.00 - 0.70 |
| Magnesium (Mg) | 1.00 - 1.50 |
| Silicon + Iron (Si+Fe) | 0.00 - 0.60 |
| Zirconium (Zr) | 0.00 - 0.10 |
| Other (Each) | 0.00 - 0.05 |
| Aluminium (Al) | Balance |
Mechanical Properties
Sheet 0.2mm to 6.00mm
| Mechanical Property | Value |
| Tensile Strength | 95 - 135 MPa |
| Proof Stress | 35 Min MPa |
| Hardness Brinell | 28 HB |
General Physical Properties
| Physical Property | Value |
| Density | 2.73 g/cm³ |
| Melting Point | 655 °C |
| Thermal Expansion | 23.1 x 10-6/K |
| Modulus of Elasticity | 69.5 GPa |
| Thermal Conductivity | 190 W/m.K |
| Electrical Resistivity | 0.034 x 10-6 Ω .m |
Applications
- Building industry: roofing and sidings, acoustic ceilings, corrugated sheets
- Chemical and food industries: storage tanks, pipes, metal work
- Equipment for heating and cooling: heat exchangers, air condition evaporators, motor vehicle radiators, freezer linings
- Home appliances: cooking utensils, bakery moulds
- Office equipment
- Tube & Pipe
- Packaging: containers, closures
- Cladding alloy
Characteristics
- Moderate strength
- Cold working can increase the strength of this alloy
- High ductility
- Excellent corrosion resistance
Additional Information
Fabrication
| Process | Rating |
| Workability - Cold | Very Good |
| Machinability | Acceptable |
| Weldability - Gas | Very Good |
| Weldability - Arc | Very Good |
| Weldability - Resistance | Good |
| Brazability | Very Good |
| Solderability | Very Good |
Weldability
- Alloy 3003 has very good weldability
Range - Propeller Patterned Sheet
| Sheet Size | Thicknesses |
| 2500 x 1250 | 1.5mm - 3.0mm |
