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EN AC-51300 Aluminum vs. SAE-AISI 9254 Steel

EN AC-51300 aluminum belongs to the aluminum alloys classification, while SAE-AISI 9254 steel belongs to the iron alloys. There are 30 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.

For each property being compared, the top bar is EN AC-51300 aluminum and the bottom bar is SAE-AISI 9254 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 65
200
Elastic (Young's, Tensile) Modulus, GPa 67
190
Elongation at Break, % 3.7
20
Fatigue Strength, MPa 78
280
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 25
72
Tensile Strength: Ultimate (UTS), MPa 190
660
Tensile Strength: Yield (Proof), MPa 110
410

Thermal Properties

Latent Heat of Fusion, J/g 400
270
Maximum Temperature: Mechanical, °C 170
410
Melting Completion (Liquidus), °C 640
1440
Melting Onset (Solidus), °C 600
1400
Specific Heat Capacity, J/kg-K 910
480
Thermal Conductivity, W/m-K 110
46
Thermal Expansion, µm/m-K 24
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 31
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 100
8.6

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
2.2
Density, g/cm3 2.7
7.7
Embodied Carbon, kg CO2/kg material 9.1
1.5
Embodied Energy, MJ/kg 150
20
Embodied Water, L/kg 1180
49

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 6.1
110
Resilience: Unit (Modulus of Resilience), kJ/m3 87
450
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 51
25
Strength to Weight: Axial, points 20
24
Strength to Weight: Bending, points 28
22
Thermal Diffusivity, mm2/s 45
12
Thermal Shock Resistance, points 8.6
20

Alloy Composition

Aluminum (Al), % 91.4 to 95.5
0
Carbon (C), % 0
0.51 to 0.59
Chromium (Cr), % 0
0.6 to 0.8
Copper (Cu), % 0 to 0.1
0
Iron (Fe), % 0 to 0.55
96.1 to 97.1
Magnesium (Mg), % 4.5 to 6.5
0
Manganese (Mn), % 0 to 0.45
0.6 to 0.8
Phosphorus (P), % 0
0 to 0.035
Silicon (Si), % 0 to 0.55
1.2 to 1.6
Sulfur (S), % 0
0 to 0.040
Titanium (Ti), % 0 to 0.2
0
Zinc (Zn), % 0 to 0.1
0
Residuals, % 0 to 0.15
0