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3105 Aluminum vs. SAE-AISI 9310 Steel

3105 aluminum belongs to the aluminum alloys classification, while SAE-AISI 9310 steel belongs to the iron alloys. There are 31 material properties with values for both materials. Properties with values for just one material (2, 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 3105 aluminum and the bottom bar is SAE-AISI 9310 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 29 to 67
540 to 610
Elastic (Young's, Tensile) Modulus, GPa 69
190
Elongation at Break, % 1.1 to 20
17 to 19
Fatigue Strength, MPa 39 to 95
300 to 390
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
73
Shear Strength, MPa 77 to 140
510 to 570
Tensile Strength: Ultimate (UTS), MPa 120 to 240
820 to 910
Tensile Strength: Yield (Proof), MPa 46 to 220
450 to 570

Thermal Properties

Latent Heat of Fusion, J/g 400
250
Maximum Temperature: Mechanical, °C 180
440
Melting Completion (Liquidus), °C 660
1460
Melting Onset (Solidus), °C 640
1420
Specific Heat Capacity, J/kg-K 900
470
Thermal Conductivity, W/m-K 170
48
Thermal Expansion, µm/m-K 24
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 44
7.7
Electrical Conductivity: Equal Weight (Specific), % IACS 140
8.9

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
4.4
Density, g/cm3 2.8
7.9
Embodied Carbon, kg CO2/kg material 8.2
1.8
Embodied Energy, MJ/kg 150
24
Embodied Water, L/kg 1180
57

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.6 to 19
120 to 150
Resilience: Unit (Modulus of Resilience), kJ/m3 15 to 340
540 to 860
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 50
24
Strength to Weight: Axial, points 12 to 24
29 to 32
Strength to Weight: Bending, points 20 to 31
25 to 27
Thermal Diffusivity, mm2/s 68
13
Thermal Shock Resistance, points 5.2 to 11
24 to 27

Alloy Composition

Aluminum (Al), % 96 to 99.5
0
Carbon (C), % 0
0.080 to 0.13
Chromium (Cr), % 0 to 0.2
1.0 to 1.4
Copper (Cu), % 0 to 0.3
0
Iron (Fe), % 0 to 0.7
93.8 to 95.2
Magnesium (Mg), % 0.2 to 0.8
0
Manganese (Mn), % 0.3 to 0.8
0.45 to 0.65
Molybdenum (Mo), % 0
0.080 to 0.15
Nickel (Ni), % 0
3.0 to 3.5
Phosphorus (P), % 0
0 to 0.015
Silicon (Si), % 0 to 0.6
0.2 to 0.35
Sulfur (S), % 0
0 to 0.012
Titanium (Ti), % 0 to 0.1
0
Zinc (Zn), % 0 to 0.4
0
Residuals, % 0 to 0.15
0

Comparable Variants