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EN 1.6957 Steel vs. A535.0 Aluminum

EN 1.6957 steel belongs to the iron alloys classification, while A535.0 aluminum belongs to the aluminum alloys. There are 29 material properties with values for both materials. Properties with values for just one material (5, 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 1.6957 steel and the bottom bar is A535.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
67
Elongation at Break, % 18
9.0
Fatigue Strength, MPa 530
95
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 73
25
Tensile Strength: Ultimate (UTS), MPa 930
250
Tensile Strength: Yield (Proof), MPa 780
120

Thermal Properties

Latent Heat of Fusion, J/g 250
390
Maximum Temperature: Mechanical, °C 450
170
Melting Completion (Liquidus), °C 1460
620
Melting Onset (Solidus), °C 1420
550
Specific Heat Capacity, J/kg-K 470
910
Thermal Conductivity, W/m-K 47
100
Thermal Expansion, µm/m-K 13
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.9
23
Electrical Conductivity: Equal Weight (Specific), % IACS 9.1
79

Otherwise Unclassified Properties

Base Metal Price, % relative 5.0
9.5
Density, g/cm3 7.9
2.6
Embodied Carbon, kg CO2/kg material 2.1
9.3
Embodied Energy, MJ/kg 29
160
Embodied Water, L/kg 60
1180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 160
19
Resilience: Unit (Modulus of Resilience), kJ/m3 1630
120
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
51
Strength to Weight: Axial, points 33
26
Strength to Weight: Bending, points 27
33
Thermal Diffusivity, mm2/s 13
42
Thermal Shock Resistance, points 27
11

Alloy Composition

Aluminum (Al), % 0
91.4 to 93.4
Carbon (C), % 0.22 to 0.32
0
Chromium (Cr), % 1.2 to 1.8
0
Copper (Cu), % 0
0 to 0.1
Iron (Fe), % 92.7 to 94.7
0 to 0.2
Magnesium (Mg), % 0
6.5 to 7.5
Manganese (Mn), % 0.15 to 0.4
0.1 to 0.25
Molybdenum (Mo), % 0.25 to 0.45
0
Nickel (Ni), % 3.4 to 4.0
0
Phosphorus (P), % 0 to 0.010
0
Silicon (Si), % 0 to 0.15
0 to 0.2
Sulfur (S), % 0 to 0.0070
0
Titanium (Ti), % 0
0 to 0.25
Vanadium (V), % 0.050 to 0.15
0
Residuals, % 0
0 to 0.15