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EN 1.6958 Steel vs. 6162 Aluminum

EN 1.6958 steel belongs to the iron alloys classification, while 6162 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 1.6958 steel and the bottom bar is 6162 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
68
Elongation at Break, % 16
6.7 to 9.1
Fatigue Strength, MPa 700
100 to 130
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 73
26
Shear Strength, MPa 700
170 to 180
Tensile Strength: Ultimate (UTS), MPa 1140
290 to 300
Tensile Strength: Yield (Proof), MPa 1070
260 to 270

Thermal Properties

Latent Heat of Fusion, J/g 250
400
Maximum Temperature: Mechanical, °C 450
160
Melting Completion (Liquidus), °C 1460
640
Melting Onset (Solidus), °C 1420
620
Specific Heat Capacity, J/kg-K 470
900
Thermal Conductivity, W/m-K 47
190
Thermal Expansion, µm/m-K 11
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.9
50
Electrical Conductivity: Equal Weight (Specific), % IACS 9.1
170

Otherwise Unclassified Properties

Base Metal Price, % relative 5.0
9.5
Density, g/cm3 7.9
2.7
Embodied Carbon, kg CO2/kg material 2.0
8.3
Embodied Energy, MJ/kg 27
150
Embodied Water, L/kg 60
1180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 180
19 to 26
Resilience: Unit (Modulus of Resilience), kJ/m3 3050
510 to 550
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
50
Strength to Weight: Axial, points 40
29 to 30
Strength to Weight: Bending, points 31
36
Thermal Diffusivity, mm2/s 13
79
Thermal Shock Resistance, points 39
13

Alloy Composition

Aluminum (Al), % 0.0050 to 0.050
96.7 to 98.9
Carbon (C), % 0.25 to 0.3
0
Chromium (Cr), % 1.2 to 1.7
0 to 0.1
Copper (Cu), % 0
0 to 0.2
Iron (Fe), % 92.6 to 94.5
0 to 0.5
Magnesium (Mg), % 0
0.7 to 1.1
Manganese (Mn), % 0.2 to 0.5
0 to 0.1
Molybdenum (Mo), % 0.35 to 0.55
0
Nickel (Ni), % 3.3 to 3.8
0
Phosphorus (P), % 0 to 0.020
0
Silicon (Si), % 0.15 to 0.3
0.4 to 0.8
Sulfur (S), % 0 to 0.015
0
Titanium (Ti), % 0
0 to 0.1
Vanadium (V), % 0 to 0.12
0
Zinc (Zn), % 0
0 to 0.25
Residuals, % 0
0 to 0.15