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EN 1.0456 Steel vs. 705.0 Aluminum

EN 1.0456 steel belongs to the iron alloys classification, while 705.0 aluminum belongs to the aluminum 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 EN 1.0456 steel and the bottom bar is 705.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 120 to 130
62 to 65
Elastic (Young's, Tensile) Modulus, GPa 190
69
Elongation at Break, % 24 to 26
8.4 to 10
Fatigue Strength, MPa 210 to 220
63 to 98
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 73
26
Tensile Strength: Ultimate (UTS), MPa 420 to 450
240 to 260
Tensile Strength: Yield (Proof), MPa 290 to 300
130

Thermal Properties

Latent Heat of Fusion, J/g 250
390
Maximum Temperature: Mechanical, °C 400
180
Melting Completion (Liquidus), °C 1460
640
Melting Onset (Solidus), °C 1420
610
Specific Heat Capacity, J/kg-K 470
890
Thermal Conductivity, W/m-K 48
140
Thermal Expansion, µm/m-K 12
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
34
Electrical Conductivity: Equal Weight (Specific), % IACS 8.4
110

Otherwise Unclassified Properties

Base Metal Price, % relative 2.2
9.5
Density, g/cm3 7.8
2.8
Embodied Carbon, kg CO2/kg material 1.5
8.4
Embodied Energy, MJ/kg 20
150
Embodied Water, L/kg 49
1170

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 93 to 99
18 to 20
Resilience: Unit (Modulus of Resilience), kJ/m3 220 to 230
120 to 130
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
49
Strength to Weight: Axial, points 15 to 16
24 to 26
Strength to Weight: Bending, points 16 to 17
31 to 32
Thermal Diffusivity, mm2/s 13
55
Thermal Shock Resistance, points 13 to 14
11

Alloy Composition

Aluminum (Al), % 0.020 to 0.060
92.3 to 98.6
Carbon (C), % 0 to 0.2
0
Chromium (Cr), % 0 to 0.3
0 to 0.4
Copper (Cu), % 0 to 0.35
0 to 0.2
Iron (Fe), % 96.7 to 99.48
0 to 0.8
Magnesium (Mg), % 0
1.4 to 1.8
Manganese (Mn), % 0.5 to 1.4
0 to 0.6
Molybdenum (Mo), % 0 to 0.1
0
Nickel (Ni), % 0 to 0.3
0
Niobium (Nb), % 0 to 0.050
0
Nitrogen (N), % 0 to 0.015
0
Phosphorus (P), % 0 to 0.035
0
Silicon (Si), % 0 to 0.4
0 to 0.2
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0 to 0.030
0 to 0.25
Vanadium (V), % 0 to 0.050
0
Zinc (Zn), % 0
0 to 3.3
Residuals, % 0
0 to 0.15