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296.0 Aluminum vs. SAE-AISI 6150 Steel

296.0 aluminum belongs to the aluminum alloys classification, while SAE-AISI 6150 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 296.0 aluminum and the bottom bar is SAE-AISI 6150 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 75 to 90
200 to 350
Elastic (Young's, Tensile) Modulus, GPa 72
190
Elongation at Break, % 3.2 to 7.1
15 to 23
Fatigue Strength, MPa 47 to 70
300 to 750
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 27
73
Tensile Strength: Ultimate (UTS), MPa 260 to 270
630 to 1200
Tensile Strength: Yield (Proof), MPa 120 to 180
420 to 1160

Thermal Properties

Latent Heat of Fusion, J/g 420
250
Maximum Temperature: Mechanical, °C 170
420
Melting Completion (Liquidus), °C 630
1460
Melting Onset (Solidus), °C 540
1410
Specific Heat Capacity, J/kg-K 870
470
Thermal Conductivity, W/m-K 130 to 150
46
Thermal Expansion, µm/m-K 22
12 to 13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 33 to 37
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 99 to 110
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 11
2.3
Density, g/cm3 3.0
7.8
Embodied Carbon, kg CO2/kg material 7.8
2.0
Embodied Energy, MJ/kg 150
28
Embodied Water, L/kg 1110
51

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 7.6 to 15
130 to 180
Resilience: Unit (Modulus of Resilience), kJ/m3 110 to 220
460 to 3590
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 46
24
Strength to Weight: Axial, points 24 to 25
22 to 43
Strength to Weight: Bending, points 30 to 31
21 to 32
Thermal Diffusivity, mm2/s 51 to 56
13
Thermal Shock Resistance, points 12
20 to 38

Alloy Composition

Aluminum (Al), % 89 to 94
0
Carbon (C), % 0
0.48 to 0.53
Chromium (Cr), % 0
0.8 to 1.1
Copper (Cu), % 4.0 to 5.0
0
Iron (Fe), % 0 to 1.2
96.7 to 97.7
Magnesium (Mg), % 0 to 0.050
0
Manganese (Mn), % 0 to 0.35
0.7 to 0.9
Nickel (Ni), % 0 to 0.35
0
Phosphorus (P), % 0
0 to 0.035
Silicon (Si), % 2.0 to 3.0
0.15 to 0.35
Sulfur (S), % 0
0 to 0.040
Titanium (Ti), % 0 to 0.25
0
Vanadium (V), % 0
0.15 to 0.3
Zinc (Zn), % 0 to 0.5
0
Residuals, % 0 to 0.35
0