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1050 Aluminum vs. SAE-AISI 1095 Steel

1050 aluminum belongs to the aluminum alloys classification, while SAE-AISI 1095 steel belongs to the iron alloys. There are 30 material properties with values for both materials. Properties with values for just one material (3, 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 1050 aluminum and the bottom bar is SAE-AISI 1095 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
190
Elongation at Break, % 4.6 to 37
10 to 11
Fatigue Strength, MPa 31 to 57
310 to 370
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
72
Shear Strength, MPa 52 to 81
400 to 540
Tensile Strength: Ultimate (UTS), MPa 76 to 140
680 to 900
Tensile Strength: Yield (Proof), MPa 25 to 120
500 to 590

Thermal Properties

Latent Heat of Fusion, J/g 400
240
Maximum Temperature: Mechanical, °C 170
400
Melting Completion (Liquidus), °C 640
1450
Melting Onset (Solidus), °C 650
1410
Specific Heat Capacity, J/kg-K 900
470
Thermal Conductivity, W/m-K 230
47
Thermal Expansion, µm/m-K 24
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 61
9.6
Electrical Conductivity: Equal Weight (Specific), % IACS 200
11

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
1.8
Density, g/cm3 2.7
7.8
Embodied Carbon, kg CO2/kg material 8.3
1.4
Embodied Energy, MJ/kg 160
19
Embodied Water, L/kg 1200
45

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.4 to 22
63 to 84
Resilience: Unit (Modulus of Resilience), kJ/m3 4.6 to 110
660 to 930
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 50
24
Strength to Weight: Axial, points 7.8 to 14
24 to 32
Strength to Weight: Bending, points 15 to 22
22 to 26
Thermal Diffusivity, mm2/s 94
13
Thermal Shock Resistance, points 3.4 to 6.2
22 to 29

Alloy Composition

Aluminum (Al), % 99.5 to 100
0
Carbon (C), % 0
0.9 to 1.0
Copper (Cu), % 0 to 0.050
0
Iron (Fe), % 0 to 0.4
98.4 to 98.8
Magnesium (Mg), % 0 to 0.050
0
Manganese (Mn), % 0 to 0.050
0.3 to 0.5
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.25
0
Sulfur (S), % 0
0 to 0.050
Titanium (Ti), % 0 to 0.030
0
Vanadium (V), % 0 to 0.050
0
Zinc (Zn), % 0 to 0.050
0