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5454 (AlMg3Mn, 3.3537, N51, A95454) Aluminum

5454 aluminum is a 5000-series aluminum alloy: the main alloying addition is magnesium, and it is formulated for primary forming into wrought products. 5454 is the Aluminum Association (AA) designation for this material. In European standards, it will be given as EN AW-5454. AlMg3Mn is the EN chemical designation. N51 is the British Standard (BS) designation. A95454 is the UNS number. Additionally, the AFNOR (French) designation is A-G3MC.

It originally received its standard designation in 1957. 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 5454 aluminum include fourteen 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 5454 aluminum to: 5000-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

61 to 93

Elastic (Young's, Tensile) Modulus

69 GPa 10 x 106 psi

Elongation at Break

2.3 to 18 %

Fatigue Strength

83 to 160 MPa 12 to 23 x 103 psi

Poisson's Ratio

0.33

Shear Modulus

26 GPa 3.8 x 106 psi

Shear Strength

140 to 200 MPa 20 to 29 x 103 psi

Tensile Strength: Ultimate (UTS)

230 to 350 MPa 33 to 51 x 103 psi

Tensile Strength: Yield (Proof)

97 to 290 MPa 14 to 41 x 103 psi

Thermal Properties

Latent Heat of Fusion

400 J/g

Maximum Temperature: Mechanical

190 °C 370 °F

Melting Completion (Liquidus)

650 °C 1190 °F

Melting Onset (Solidus)

600 °C 1110 °F

Specific Heat Capacity

900 J/kg-K 0.22 BTU/lb-°F

Thermal Conductivity

130 W/m-K 78 BTU/h-ft-°F

Thermal Expansion

24 µm/m-K

Electrical Properties

Electrical Conductivity: Equal Volume

34 % IACS

Electrical Conductivity: Equal Weight (Specific)

110 % IACS

Otherwise Unclassified Properties

Base Metal Price

9.5 % relative

Density

2.7 g/cm3 170 lb/ft3

Embodied Carbon

8.6 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)

6.3 to 34 MJ/m3

Resilience: Unit (Modulus of Resilience)

68 to 590 kJ/m3

Stiffness to Weight: Axial

14 points

Stiffness to Weight: Bending

50 points

Strength to Weight: Axial

23 to 36 points

Strength to Weight: Bending

30 to 41 points

Thermal Diffusivity

55 m2/s

Thermal Shock Resistance

10 to 16 points

Alloy Composition

Among wrought aluminum alloys, the composition of 5454 aluminum is notable for containing a comparatively high amount of magnesium (Mg). Magnesium promotes hardenability through both heat treatment and strain hardening mechanisms. It also increases susceptibility to intergranular corrosion.

Aluminum (Al) 94.5 to 97.1
Magnesium (Mg) 2.4 to 3.0
Manganese (Mn) 0.5 to 1.0
Iron (Fe) 0 to 0.4
Silicon (Si) 0 to 0.25
Chromium (Cr) 0.050 to 0.2
Zinc (Zn) 0 to 0.25
Titanium (Ti) 0 to 0.2
Copper (Cu) 0 to 0.1
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

Advanced Materials in Automotive Engineering, Jason Rowe (editor), 2012

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

EN 755-2: Aluminium and aluminium alloys. Extruded rod/bar, tube and profiles. Mechanical properties

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