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EN 1.7365 Steel vs. 3104 Aluminum

EN 1.7365 steel belongs to the iron alloys classification, while 3104 aluminum belongs to the aluminum alloys. There are 29 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 1.7365 steel and the bottom bar is 3104 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
70
Elongation at Break, % 18
1.1 to 20
Fatigue Strength, MPa 320
74 to 130
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 74
26
Tensile Strength: Ultimate (UTS), MPa 700
170 to 310
Tensile Strength: Yield (Proof), MPa 470
68 to 270

Thermal Properties

Latent Heat of Fusion, J/g 260
400
Maximum Temperature: Mechanical, °C 510
180
Melting Completion (Liquidus), °C 1460
650
Melting Onset (Solidus), °C 1420
600
Specific Heat Capacity, J/kg-K 470
900
Thermal Conductivity, W/m-K 40
160
Thermal Expansion, µm/m-K 13
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.2
41
Electrical Conductivity: Equal Weight (Specific), % IACS 9.4
130

Otherwise Unclassified Properties

Base Metal Price, % relative 4.4
9.5
Density, g/cm3 7.8
2.8
Embodied Carbon, kg CO2/kg material 1.8
8.4
Embodied Energy, MJ/kg 24
150
Embodied Water, L/kg 70
1180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
1.6 to 60
Resilience: Unit (Modulus of Resilience), kJ/m3 580
34 to 540
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
50
Strength to Weight: Axial, points 25
17 to 31
Strength to Weight: Bending, points 22
25 to 37
Thermal Diffusivity, mm2/s 11
64
Thermal Shock Resistance, points 20
7.6 to 13

Alloy Composition

Aluminum (Al), % 0
95.1 to 98.4
Carbon (C), % 0.12 to 0.19
0
Chromium (Cr), % 4.0 to 6.0
0
Copper (Cu), % 0 to 0.3
0.050 to 0.25
Gallium (Ga), % 0
0 to 0.050
Iron (Fe), % 91.2 to 94.9
0 to 0.8
Magnesium (Mg), % 0
0.8 to 1.3
Manganese (Mn), % 0.5 to 0.8
0.8 to 1.4
Molybdenum (Mo), % 0.45 to 0.65
0
Phosphorus (P), % 0 to 0.025
0
Silicon (Si), % 0 to 0.8
0 to 0.6
Sulfur (S), % 0 to 0.025
0
Titanium (Ti), % 0
0 to 0.1
Vanadium (V), % 0 to 0.050
0 to 0.050
Zinc (Zn), % 0
0 to 0.25
Residuals, % 0
0 to 0.15