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 mm2/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.
| Al | 95.6 to 98.2 | |
| Mn | 1.0 to 1.5 | |
| Mg | 0.8 to 1.3 | |
| Fe | 0 to 0.7 | |
| Si | 0 to 0.3 | |
| Zn | 0 to 0.25 | |
| Cu | 0 to 0.25 | |
| res. | 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