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EN 1.7338 Steel vs. 7010 Aluminum

EN 1.7338 steel belongs to the iron alloys classification, while 7010 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 1.7338 steel and the bottom bar is 7010 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
70
Elongation at Break, % 23
3.9 to 6.8
Fatigue Strength, MPa 220
160 to 190
Poisson's Ratio 0.29
0.32
Shear Modulus, GPa 73
26
Shear Strength, MPa 310
300 to 340
Tensile Strength: Ultimate (UTS), MPa 490
520 to 590
Tensile Strength: Yield (Proof), MPa 300
410 to 540

Thermal Properties

Latent Heat of Fusion, J/g 260
380
Maximum Temperature: Mechanical, °C 430
200
Melting Completion (Liquidus), °C 1460
630
Melting Onset (Solidus), °C 1420
480
Specific Heat Capacity, J/kg-K 470
860
Thermal Conductivity, W/m-K 40
150
Thermal Expansion, µm/m-K 13
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.5
40
Electrical Conductivity: Equal Weight (Specific), % IACS 8.6
120

Otherwise Unclassified Properties

Base Metal Price, % relative 3.1
10
Density, g/cm3 7.8
3.0
Embodied Carbon, kg CO2/kg material 1.6
8.3
Embodied Energy, MJ/kg 21
150
Embodied Water, L/kg 53
1120

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 97
22 to 33
Resilience: Unit (Modulus of Resilience), kJ/m3 240
1230 to 2130
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
45
Strength to Weight: Axial, points 17
47 to 54
Strength to Weight: Bending, points 18
47 to 52
Thermal Diffusivity, mm2/s 11
58
Thermal Shock Resistance, points 14
22 to 26

Alloy Composition

Aluminum (Al), % 0 to 0.040
87.9 to 90.6
Carbon (C), % 0 to 0.15
0
Chromium (Cr), % 1.0 to 1.5
0 to 0.050
Copper (Cu), % 0 to 0.3
1.5 to 2.0
Iron (Fe), % 95.4 to 97.8
0 to 0.15
Magnesium (Mg), % 0
2.1 to 2.6
Manganese (Mn), % 0.3 to 0.6
0 to 0.1
Molybdenum (Mo), % 0.45 to 0.65
0
Nickel (Ni), % 0 to 0.3
0 to 0.050
Phosphorus (P), % 0 to 0.025
0
Silicon (Si), % 0.5 to 1.0
0 to 0.12
Sulfur (S), % 0 to 0.010
0
Titanium (Ti), % 0
0 to 0.060
Zinc (Zn), % 0
5.7 to 6.7
Zirconium (Zr), % 0
0.1 to 0.16
Residuals, % 0
0 to 0.15