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1070 Aluminum vs. EN 1.0255 Steel

1070 aluminum belongs to the aluminum alloys classification, while EN 1.0255 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 EN 1.0255 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
190
Elongation at Break, % 4.5 to 39
27
Fatigue Strength, MPa 22 to 49
180
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
73
Shear Strength, MPa 48 to 79
280
Tensile Strength: Ultimate (UTS), MPa 73 to 140
430
Tensile Strength: Yield (Proof), MPa 17 to 120
250

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
40
Thermal Expansion, µm/m-K 23
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 61
7.7
Electrical Conductivity: Equal Weight (Specific), % IACS 200
8.8

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
2.1
Density, g/cm3 2.7
7.8
Embodied Carbon, kg CO2/kg material 8.3
1.5
Embodied Energy, MJ/kg 160
19
Embodied Water, L/kg 1200
49

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 4.8 to 21
100
Resilience: Unit (Modulus of Resilience), kJ/m3 2.1 to 110
160
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 50
24
Strength to Weight: Axial, points 7.5 to 14
15
Strength to Weight: Bending, points 14 to 22
16
Thermal Diffusivity, mm2/s 94
11
Thermal Shock Resistance, points 3.3 to 6.1
14

Alloy Composition

Aluminum (Al), % 99.7 to 100
0.020 to 0.2
Carbon (C), % 0
0 to 0.16
Chromium (Cr), % 0
0 to 0.3
Copper (Cu), % 0 to 0.040
0 to 0.3
Iron (Fe), % 0 to 0.25
94.1 to 99.98
Magnesium (Mg), % 0 to 0.030
0
Manganese (Mn), % 0 to 0.030
0 to 1.2
Molybdenum (Mo), % 0
0 to 0.080
Nickel (Ni), % 0
0 to 0.3
Niobium (Nb), % 0
0 to 0.010
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 0 to 0.2
0 to 0.35
Sulfur (S), % 0
0 to 0.015
Titanium (Ti), % 0 to 0.030
0 to 0.040
Vanadium (V), % 0 to 0.050
0 to 0.020
Zinc (Zn), % 0 to 0.040
0
Residuals, % 0 to 0.030
0