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535.0 Aluminum vs. SAE-AISI 5155 Steel

535.0 aluminum belongs to the aluminum alloys classification, while SAE-AISI 5155 steel belongs to the iron alloys. There are 31 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 535.0 aluminum and the bottom bar is SAE-AISI 5155 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 70
190
Elastic (Young's, Tensile) Modulus, GPa 67
190
Elongation at Break, % 10
21
Fatigue Strength, MPa 70
260
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 25
73
Shear Strength, MPa 190
390
Tensile Strength: Ultimate (UTS), MPa 270
620
Tensile Strength: Yield (Proof), MPa 140
380

Thermal Properties

Latent Heat of Fusion, J/g 390
250
Maximum Temperature: Mechanical, °C 170
420
Melting Completion (Liquidus), °C 630
1450
Melting Onset (Solidus), °C 570
1410
Specific Heat Capacity, J/kg-K 910
470
Thermal Conductivity, W/m-K 100
49
Thermal Expansion, µm/m-K 24
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 23
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 79
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
2.1
Density, g/cm3 2.6
7.8
Embodied Carbon, kg CO2/kg material 9.4
1.4
Embodied Energy, MJ/kg 160
19
Embodied Water, L/kg 1180
49

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 24
110
Resilience: Unit (Modulus of Resilience), kJ/m3 150
380
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 51
24
Strength to Weight: Axial, points 28
22
Strength to Weight: Bending, points 35
21
Thermal Diffusivity, mm2/s 42
13
Thermal Shock Resistance, points 12
20

Alloy Composition

Aluminum (Al), % 91.5 to 93.6
0
Beryllium (Be), % 0.0030 to 0.0070
0
Boron (B), % 0 to 0.0050
0
Carbon (C), % 0
0.51 to 0.59
Chromium (Cr), % 0
0.7 to 0.9
Copper (Cu), % 0 to 0.050
0
Iron (Fe), % 0 to 0.15
97.2 to 97.9
Magnesium (Mg), % 6.2 to 7.5
0
Manganese (Mn), % 0.1 to 0.25
0.7 to 0.9
Phosphorus (P), % 0
0 to 0.035
Silicon (Si), % 0 to 0.15
0.15 to 0.35
Sulfur (S), % 0
0 to 0.040
Titanium (Ti), % 0.1 to 0.25
0
Residuals, % 0 to 0.15
0