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295.0 Aluminum vs. SAE-AISI S1 Steel

295.0 aluminum belongs to the aluminum alloys classification, while SAE-AISI S1 steel belongs to the iron alloys. There are 23 material properties with values for both materials. Properties with values for just one material (10, 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 295.0 aluminum and the bottom bar is SAE-AISI S1 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 71
190
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 27
73
Tensile Strength: Ultimate (UTS), MPa 230 to 280
690 to 1840

Thermal Properties

Latent Heat of Fusion, J/g 400
260
Melting Completion (Liquidus), °C 640
1500
Melting Onset (Solidus), °C 530
1450
Specific Heat Capacity, J/kg-K 880
470
Thermal Conductivity, W/m-K 140
41
Thermal Expansion, µm/m-K 23
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 35
7.7
Electrical Conductivity: Equal Weight (Specific), % IACS 100
8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 10
8.0
Density, g/cm3 3.0
8.0
Embodied Carbon, kg CO2/kg material 7.9
2.6
Embodied Energy, MJ/kg 150
37
Embodied Water, L/kg 1140
56

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 46
24
Strength to Weight: Axial, points 21 to 26
24 to 64
Strength to Weight: Bending, points 27 to 32
22 to 42
Thermal Diffusivity, mm2/s 54
11
Thermal Shock Resistance, points 9.8 to 12
21 to 56

Alloy Composition

Aluminum (Al), % 91.4 to 95.3
0
Carbon (C), % 0
0.4 to 0.55
Chromium (Cr), % 0
1.0 to 1.8
Copper (Cu), % 4.0 to 5.0
0 to 0.25
Iron (Fe), % 0 to 1.0
91.6 to 96.7
Magnesium (Mg), % 0 to 0.030
0
Manganese (Mn), % 0 to 0.35
0.1 to 0.4
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 0
0 to 0.3
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0.7 to 1.5
0.15 to 1.2
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 0 to 0.25
0
Tungsten (W), % 0
1.5 to 3.0
Vanadium (V), % 0
0.15 to 0.3
Zinc (Zn), % 0 to 0.35
0
Residuals, % 0 to 0.15
0