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1070A Aluminum vs. SAE-AISI M41 Steel

1070A aluminum belongs to the aluminum alloys classification, while SAE-AISI M41 steel belongs to the iron alloys. There are 21 material properties with values for both materials. Properties with values for just one material (11, 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 1070A aluminum and the bottom bar is SAE-AISI M41 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
200
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
77
Tensile Strength: Ultimate (UTS), MPa 68 to 140
800 to 2290

Thermal Properties

Latent Heat of Fusion, J/g 400
260
Melting Completion (Liquidus), °C 640
1600
Melting Onset (Solidus), °C 640
1550
Specific Heat Capacity, J/kg-K 900
440
Thermal Conductivity, W/m-K 230
22
Thermal Expansion, µm/m-K 23
12

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
33
Density, g/cm3 2.7
8.4
Embodied Carbon, kg CO2/kg material 8.2
9.1
Embodied Energy, MJ/kg 150
140
Embodied Water, L/kg 1200
120

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 50
23
Strength to Weight: Axial, points 7.0 to 14
26 to 76
Strength to Weight: Bending, points 14 to 22
23 to 46
Thermal Diffusivity, mm2/s 94
6.0
Thermal Shock Resistance, points 3.1 to 6.3
25 to 71

Alloy Composition

Aluminum (Al), % 99.7 to 100
0
Carbon (C), % 0
1.1 to 1.2
Chromium (Cr), % 0
3.8 to 4.5
Cobalt (Co), % 0
4.8 to 5.8
Copper (Cu), % 0 to 0.030
0 to 0.25
Iron (Fe), % 0 to 0.25
73.4 to 78.9
Magnesium (Mg), % 0 to 0.030
0
Manganese (Mn), % 0 to 0.030
0.2 to 0.6
Molybdenum (Mo), % 0
3.3 to 4.3
Nickel (Ni), % 0
0 to 0.3
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0 to 0.2
0.15 to 0.5
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 0 to 0.030
0
Tungsten (W), % 0
6.3 to 7.0
Vanadium (V), % 0
1.8 to 2.3
Zinc (Zn), % 0 to 0.070
0

Comparable Variants