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3003 (AlMn1Cu, 3.0517, A93003) Aluminum

3003 aluminum is a 3000-series aluminum alloy: the main alloying addition is manganese, and it is formulated for primary forming into wrought products. 3003 is the Aluminum Association (AA) designation for this material. In European standards, it will typically be given as EN AW-3003. AlMn1Cu is the EN chemical designation. A93003 is the UNS number. Additionally, the British Standard (BS) designation is N3.

It has been in use since 1906, but has only received its standard designation in 1954. This material is well established. The Further Reading section below cites a number of published standards, and that list is not necessarily exhaustive.

It has twelve common variants, each represented as a separate material. The material properties section shows ranges encompassing all variants. To see the details of each variant on a separate page, follow the links in the Variant Materials section further below.

Mechanical Properties

Graph bars compare 3003 aluminum to other materials. From top to bottom: AA 3000 series (aluminum-manganese wrought alloy), aluminum alloys, and the entire database.

Brinell Hardness

28 to 65

Elastic (Young's, Tensile) Modulus

72 GPa 10 x 106 psi

Elongation at Break

1.1 to 28 %

Modulus of Resilience (Unit Resilience)

11 to 300 kJ/m3

Poisson's Ratio

0.33

Shear Modulus

26 GPa 3.7 x 106 psi

Strength to Weight Ratio

39 to 86 kN-m/kg

Tensile Strength: Ultimate (UTS)

110 to 240 MPa 16 to 35 x 103 psi

Tensile Strength: Yield (Proof)

40 to 210 MPa 5.8 to 30 x 103 psi

Unit Rupture Work (Ultimate Resilience)

2.6 to 24 MJ/m3

Thermal Properties

Melting Onset (Solidus)

640 °C 1190 °F

Specific Heat Capacity

900 J/kg-K 0.21 BTU/lb-°F

Thermal Conductivity

180 W/m-K 100 BTU/h-ft-°F

Thermal Diffusivity

71 m2/s

Thermal Expansion

22 µm/m-K

Other Material Properties

Base Metal Price

16 % relative

Calomel Potential

-740 mV

Density

2.8 g/cm3 170 lb/ft3

Electrical Conductivity: Equal Volume

44 % IACS

Electrical Conductivity: Equal Weight (Specific)

140 % IACS

Electrical Resistivity Order of Magnitude

-7.0 10x Ω-m

Embodied Carbon

8.1 kg CO2/kg material

Embodied Energy

150 MJ/kg 66 x 103 BTU/lb

Embodied Water

1180 L/kg 140 gal/lb

Alloy Composition

Aluminum (Al) 96.8 to 99
Manganese (Mn) 1.0 to 1.5
Iron (Fe) 0 to 0.7
Silicon (Si) 0 to 0.6
Copper (Cu) 0.050 to 0.2
Zinc (Zn) 0 to 0.1
Residuals 0 to 0.15

All values are % weight. Ranges represent what is permitted under applicable standards.

Followup Questions

Publications

Variant Materials

Similar Alloys

Further Reading

Aluminum Standards and Data, Aluminum Association Inc., 2013

ASTM B209: Standard Specification for Aluminum and Aluminum-Alloy Sheet and Plate

ASTM B210: Standard Specification for Aluminum and Aluminum-Alloy Drawn Seamless Tubes

ASTM B211: Standard Specification for Aluminum and Aluminum-Alloy Bar, Rod, and Wire

ASTM B221: Standard Specification for Aluminum and Aluminum-Alloy Extruded Bars, Rods, Wire, Profiles, and Tubes

ASTM B247: Standard Specification for Aluminum and Aluminum-Alloy Die Forgings, Hand Forgings, and Rolled Ring Forgings

ASTM B483: Standard Specification for Aluminum and Aluminum-Alloy Drawn Tube and Pipe for General Purpose Applications

ASTM B491: Standard Specification for Aluminum and Aluminum-Alloy Extruded Round Tubes for General-Purpose Applications

ASTM B547: Standard Specification for Aluminum and Aluminum-Alloy Formed and Arc-Welded Round Tube

EN 485-2: Aluminium and aluminium alloys. Sheet, strip and plate. Mechanical properties