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EN 1.0070 Steel vs. 1050A Aluminum

EN 1.0070 steel belongs to the iron alloys classification, while 1050A aluminum belongs to the aluminum 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 EN 1.0070 steel and the bottom bar is 1050A aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210
20 to 45
Elastic (Young's, Tensile) Modulus, GPa 190
68
Elongation at Break, % 9.1
1.1 to 33
Fatigue Strength, MPa 210
22 to 55
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 73
26
Shear Strength, MPa 440
44 to 97
Tensile Strength: Ultimate (UTS), MPa 740
68 to 170
Tensile Strength: Yield (Proof), MPa 350
22 to 150

Thermal Properties

Latent Heat of Fusion, J/g 250
400
Maximum Temperature: Mechanical, °C 400
170
Melting Completion (Liquidus), °C 1470
660
Melting Onset (Solidus), °C 1430
650
Specific Heat Capacity, J/kg-K 470
900
Thermal Conductivity, W/m-K 53
230
Thermal Expansion, µm/m-K 12
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 6.8
59
Electrical Conductivity: Equal Weight (Specific), % IACS 7.8
200

Otherwise Unclassified Properties

Base Metal Price, % relative 1.7
9.0
Density, g/cm3 7.9
2.7
Embodied Carbon, kg CO2/kg material 1.4
8.2
Embodied Energy, MJ/kg 18
150
Embodied Water, L/kg 45
1200

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 56
1.9 to 19
Resilience: Unit (Modulus of Resilience), kJ/m3 320
3.7 to 160
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
50
Strength to Weight: Axial, points 26
6.9 to 18
Strength to Weight: Bending, points 23
14 to 25
Thermal Diffusivity, mm2/s 14
94
Thermal Shock Resistance, points 23
3.0 to 7.6

Alloy Composition

Aluminum (Al), % 0
99.5 to 100
Copper (Cu), % 0
0 to 0.050
Iron (Fe), % 99.876 to 100
0 to 0.4
Magnesium (Mg), % 0
0 to 0.050
Manganese (Mn), % 0
0 to 0.050
Nitrogen (N), % 0 to 0.014
0
Phosphorus (P), % 0 to 0.055
0
Silicon (Si), % 0
0 to 0.25
Sulfur (S), % 0 to 0.055
0
Titanium (Ti), % 0
0 to 0.050
Zinc (Zn), % 0
0 to 0.070