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1070 Aluminum vs. SAE-AISI 1524 Steel

1070 aluminum belongs to the aluminum alloys classification, while SAE-AISI 1524 steel belongs to the iron alloys. There are 30 material properties with values for both materials. Properties with values for just one material (2, 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 1070 aluminum and the bottom bar is SAE-AISI 1524 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
190
Elongation at Break, % 4.5 to 39
14 to 22
Fatigue Strength, MPa 22 to 49
230 to 340
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
73
Shear Strength, MPa 48 to 79
360 to 390
Tensile Strength: Ultimate (UTS), MPa 73 to 140
570 to 650
Tensile Strength: Yield (Proof), MPa 17 to 120
320 to 540

Thermal Properties

Latent Heat of Fusion, J/g 400
250
Maximum Temperature: Mechanical, °C 170
400
Melting Completion (Liquidus), °C 640
1460
Melting Onset (Solidus), °C 640
1420
Specific Heat Capacity, J/kg-K 900
470
Thermal Conductivity, W/m-K 230
52
Thermal Expansion, µm/m-K 23
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 61
8.3
Electrical Conductivity: Equal Weight (Specific), % IACS 200
9.5

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
1.9
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
48

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 4.8 to 21
84 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 2.1 to 110
270 to 760
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 50
24
Strength to Weight: Axial, points 7.5 to 14
20 to 23
Strength to Weight: Bending, points 14 to 22
19 to 21
Thermal Diffusivity, mm2/s 94
14
Thermal Shock Resistance, points 3.3 to 6.1
18 to 21

Alloy Composition

Aluminum (Al), % 99.7 to 100
0
Carbon (C), % 0
0.19 to 0.25
Copper (Cu), % 0 to 0.040
0
Iron (Fe), % 0 to 0.25
98 to 98.5
Magnesium (Mg), % 0 to 0.030
0
Manganese (Mn), % 0 to 0.030
1.4 to 1.7
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.2
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 0.040
0
Residuals, % 0 to 0.030
0