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EN 1.6957 Steel vs. 364.0 Aluminum

EN 1.6957 steel belongs to the iron alloys classification, while 364.0 aluminum belongs to the aluminum alloys. There are 30 material properties with values for both materials. Properties with values for just one material (4, 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 364.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
72
Elongation at Break, % 18
7.5
Fatigue Strength, MPa 530
120
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 73
27
Shear Strength, MPa 570
200
Tensile Strength: Ultimate (UTS), MPa 930
300
Tensile Strength: Yield (Proof), MPa 780
160

Thermal Properties

Latent Heat of Fusion, J/g 250
520
Maximum Temperature: Mechanical, °C 450
190
Melting Completion (Liquidus), °C 1460
600
Melting Onset (Solidus), °C 1420
560
Specific Heat Capacity, J/kg-K 470
900
Thermal Conductivity, W/m-K 47
120
Thermal Expansion, µm/m-K 13
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.9
30
Electrical Conductivity: Equal Weight (Specific), % IACS 9.1
100

Otherwise Unclassified Properties

Base Metal Price, % relative 5.0
11
Density, g/cm3 7.9
2.6
Embodied Carbon, kg CO2/kg material 2.1
8.0
Embodied Energy, MJ/kg 29
150
Embodied Water, L/kg 60
1080

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 160
19
Resilience: Unit (Modulus of Resilience), kJ/m3 1630
180
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 24
53
Strength to Weight: Axial, points 33
31
Strength to Weight: Bending, points 27
38
Thermal Diffusivity, mm2/s 13
51
Thermal Shock Resistance, points 27
14

Alloy Composition

Aluminum (Al), % 0
87.2 to 92
Beryllium (Be), % 0
0.020 to 0.040
Carbon (C), % 0.22 to 0.32
0
Chromium (Cr), % 1.2 to 1.8
0.25 to 0.5
Copper (Cu), % 0
0 to 0.2
Iron (Fe), % 92.7 to 94.7
0 to 1.5
Magnesium (Mg), % 0
0.2 to 0.4
Manganese (Mn), % 0.15 to 0.4
0 to 0.1
Molybdenum (Mo), % 0.25 to 0.45
0
Nickel (Ni), % 3.4 to 4.0
0 to 0.15
Phosphorus (P), % 0 to 0.010
0
Silicon (Si), % 0 to 0.15
7.5 to 9.5
Sulfur (S), % 0 to 0.0070
0
Tin (Sn), % 0
0 to 0.15
Vanadium (V), % 0.050 to 0.15
0
Zinc (Zn), % 0
0 to 0.15
Residuals, % 0
0 to 0.15