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1070 Aluminum vs. SAE-AISI 1211 Steel

1070 aluminum belongs to the aluminum alloys classification, while SAE-AISI 1211 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 1211 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
190
Elongation at Break, % 4.5 to 39
11 to 29
Fatigue Strength, MPa 22 to 49
200 to 280
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
73
Shear Strength, MPa 48 to 79
280 to 350
Tensile Strength: Ultimate (UTS), MPa 73 to 140
430 to 580
Tensile Strength: Yield (Proof), MPa 17 to 120
260 to 460

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
7.0
Electrical Conductivity: Equal Weight (Specific), % IACS 200
8.0

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
1.8
Density, g/cm3 2.7
7.9
Embodied Carbon, kg CO2/kg material 8.3
1.4
Embodied Energy, MJ/kg 160
18
Embodied Water, L/kg 1200
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 4.8 to 21
61 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 2.1 to 110
180 to 550
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 50
24
Strength to Weight: Axial, points 7.5 to 14
15 to 21
Strength to Weight: Bending, points 14 to 22
16 to 20
Thermal Diffusivity, mm2/s 94
14
Thermal Shock Resistance, points 3.3 to 6.1
14 to 18

Alloy Composition

Aluminum (Al), % 99.7 to 100
0
Carbon (C), % 0
0 to 0.13
Copper (Cu), % 0 to 0.040
0
Iron (Fe), % 0 to 0.25
98.7 to 99.23
Magnesium (Mg), % 0 to 0.030
0
Manganese (Mn), % 0 to 0.030
0.6 to 0.9
Phosphorus (P), % 0
0.070 to 0.12
Silicon (Si), % 0 to 0.2
0
Sulfur (S), % 0
0.1 to 0.15
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