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1050A Aluminum vs. EN 1.7706 Steel

1050A aluminum belongs to the aluminum alloys classification, while EN 1.7706 steel belongs to the iron alloys. There are 30 material properties with values for both materials. Properties with values for just one material (3, 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 1050A aluminum and the bottom bar is EN 1.7706 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 20 to 45
210
Elastic (Young's, Tensile) Modulus, GPa 68
190
Elongation at Break, % 1.1 to 33
17
Fatigue Strength, MPa 22 to 55
330
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
73
Tensile Strength: Ultimate (UTS), MPa 68 to 170
690
Tensile Strength: Yield (Proof), MPa 22 to 150
500

Thermal Properties

Latent Heat of Fusion, J/g 400
260
Maximum Temperature: Mechanical, °C 170
440
Melting Completion (Liquidus), °C 660
1470
Melting Onset (Solidus), °C 650
1430
Specific Heat Capacity, J/kg-K 900
470
Thermal Conductivity, W/m-K 230
40
Thermal Expansion, µm/m-K 24
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 59
7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 200
8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
3.7
Density, g/cm3 2.7
7.9
Embodied Carbon, kg CO2/kg material 8.2
2.3
Embodied Energy, MJ/kg 150
32
Embodied Water, L/kg 1200
57

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 1.9 to 19
110
Resilience: Unit (Modulus of Resilience), kJ/m3 3.7 to 160
670
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 50
24
Strength to Weight: Axial, points 6.9 to 18
24
Strength to Weight: Bending, points 14 to 25
22
Thermal Diffusivity, mm2/s 94
11
Thermal Shock Resistance, points 3.0 to 7.6
20

Alloy Composition

Aluminum (Al), % 99.5 to 100
0
Carbon (C), % 0
0.15 to 0.2
Chromium (Cr), % 0
1.2 to 1.5
Copper (Cu), % 0 to 0.050
0 to 0.3
Iron (Fe), % 0 to 0.4
94.7 to 97.1
Magnesium (Mg), % 0 to 0.050
0
Manganese (Mn), % 0 to 0.050
0.5 to 0.9
Molybdenum (Mo), % 0
0.9 to 1.1
Nickel (Ni), % 0
0 to 0.4
Phosphorus (P), % 0
0 to 0.020
Silicon (Si), % 0 to 0.25
0 to 0.6
Sulfur (S), % 0
0 to 0.015
Titanium (Ti), % 0 to 0.050
0
Vanadium (V), % 0
0.2 to 0.3
Zinc (Zn), % 0 to 0.070
0