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1070A Aluminum vs. SAE-AISI 6150 Steel

1070A aluminum belongs to the aluminum alloys classification, while SAE-AISI 6150 steel belongs to the iron alloys. 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 6150 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 18 to 40
200 to 350
Elastic (Young's, Tensile) Modulus, GPa 68
190
Elongation at Break, % 2.3 to 33
15 to 23
Fatigue Strength, MPa 17 to 51
300 to 750
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
73
Shear Strength, MPa 44 to 81
400 to 730
Tensile Strength: Ultimate (UTS), MPa 68 to 140
630 to 1200
Tensile Strength: Yield (Proof), MPa 17 to 120
420 to 1160

Thermal Properties

Latent Heat of Fusion, J/g 400
250
Maximum Temperature: Mechanical, °C 170
420
Melting Completion (Liquidus), °C 640
1460
Melting Onset (Solidus), °C 640
1410
Specific Heat Capacity, J/kg-K 900
470
Thermal Conductivity, W/m-K 230
46
Thermal Expansion, µm/m-K 23
12 to 13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 60
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 200
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
2.3
Density, g/cm3 2.7
7.8
Embodied Carbon, kg CO2/kg material 8.2
2.0
Embodied Energy, MJ/kg 150
28
Embodied Water, L/kg 1200
51

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 3.0 to 18
130 to 180
Resilience: Unit (Modulus of Resilience), kJ/m3 2.1 to 100
460 to 3590
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 50
24
Strength to Weight: Axial, points 7.0 to 14
22 to 43
Strength to Weight: Bending, points 14 to 22
21 to 32
Thermal Diffusivity, mm2/s 94
13
Thermal Shock Resistance, points 3.1 to 6.3
20 to 38

Alloy Composition

Aluminum (Al), % 99.7 to 100
0
Carbon (C), % 0
0.48 to 0.53
Chromium (Cr), % 0
0.8 to 1.1
Copper (Cu), % 0 to 0.030
0
Iron (Fe), % 0 to 0.25
96.7 to 97.7
Magnesium (Mg), % 0 to 0.030
0
Manganese (Mn), % 0 to 0.030
0.7 to 0.9
Phosphorus (P), % 0
0 to 0.035
Silicon (Si), % 0 to 0.2
0.15 to 0.35
Sulfur (S), % 0
0 to 0.040
Titanium (Ti), % 0 to 0.030
0
Vanadium (V), % 0
0.15 to 0.3
Zinc (Zn), % 0 to 0.070
0

Comparable Variants