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3004 (AlMn1Mg1, 3.0526, A93004) Aluminum

3004 aluminum is a 3000-series aluminum alloy: the main alloying addition is manganese, and it is formulated for primary forming into wrought products. 3004 is the Aluminum Association (AA) designation for this material. In European standards, it will be given as EN AW-3004. AlMn1Mg1 is the EN chemical designation. A93004 is the UNS number. Additionally, the AFNOR (French) designation is A-M1G.

It has been in use since 1929, 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.

The properties of 3004 aluminum include fifteen common variations. This page shows summary ranges across all of them. For more specific values, follow the links immediately below. The graph bars on the material properties cards further below compare 3004 aluminum to: 3000-series alloys (top), all aluminum alloys (middle), and the entire database (bottom). A full bar means this is the highest value in the relevant set. A half-full bar means it's 50% of the highest, and so on.

Mechanical Properties

Brinell Hardness

45 to 83

Elastic (Young's, Tensile) Modulus

70 GPa 10 x 106 psi

Elongation at Break

1.1 to 19 %

Fatigue Strength

55 to 120 MPa 7.9 to 17 x 103 psi

Poisson's Ratio

0.33

Shear Modulus

26 GPa 3.8 x 106 psi

Shear Strength

100 to 180 MPa 15 to 25 x 103 psi

Tensile Strength: Ultimate (UTS)

170 to 310 MPa 25 to 45 x 103 psi

Tensile Strength: Yield (Proof)

68 to 270 MPa 9.9 to 40 x 103 psi

Thermal Properties

Latent Heat of Fusion

400 J/g

Maximum Temperature: Mechanical

180 °C 360 °F

Melting Completion (Liquidus)

650 °C 1210 °F

Melting Onset (Solidus)

630 °C 1170 °F

Specific Heat Capacity

900 J/kg-K 0.21 BTU/lb-°F

Thermal Conductivity

160 W/m-K 94 BTU/h-ft-°F

Thermal Expansion

24 µm/m-K

Electrical Properties

Electrical Conductivity: Equal Volume

42 % IACS

Electrical Conductivity: Equal Weight (Specific)

140 % IACS

Otherwise Unclassified Properties

Base Metal Price

9.5 % relative

Calomel Potential

-750 mV

Density

2.8 g/cm3 170 lb/ft3

Embodied Carbon

8.3 kg CO2/kg material

Embodied Energy

150 MJ/kg 66 x 103 BTU/lb

Embodied Water

1180 L/kg 140 gal/lb

Common Calculations

Resilience: Ultimate (Unit Rupture Work)

3.2 to 27 MJ/m3

Resilience: Unit (Modulus of Resilience)

33 to 540 kJ/m3

Stiffness to Weight: Axial

14 points

Stiffness to Weight: Bending

50 points

Strength to Weight: Axial

18 to 31 points

Strength to Weight: Bending

25 to 37 points

Thermal Diffusivity

65 m2/s

Thermal Shock Resistance

7.6 to 13 points

Alloy Composition

Among wrought aluminum alloys, the composition of 3004 aluminum is notable for containing a comparatively high amount of manganese (Mn). Manganese is used to improve strength without a proportional reduction in ductility. It also improves workability by controlling the grain structure of the alloy.

Aluminum (Al) 95.6 to 98.2
Manganese (Mn) 1.0 to 1.5
Magnesium (Mg) 0.8 to 1.3
Iron (Fe) 0 to 0.7
Silicon (Si) 0 to 0.3
Zinc (Zn) 0 to 0.25
Copper (Cu) 0 to 0.25
Residuals 0 to 0.15

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

Followup Questions

Similar Alloys

Further Reading

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

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

Environmental Degradation of Advanced and Traditional Engineering Materials, Lloyd H. Hihara et al., 2014.

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

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

Aluminum Standards and Data, Aluminum Association Inc., 2013

ISO 6361-2: Wrought aluminium and aluminium alloys - Sheets, strips and plates - Part 2: Mechanical properties

EN 573-3: Aluminium and aluminium alloys. Chemical composition and form of wrought products. Chemical composition and form of products

Properties and Selection: Nonferrous Alloys and Special-Purpose Materials, ASM Handbook vol. 2, ASM International, 1993