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3104-O Aluminum vs. Annealed S46910 Stainless Steel

3104-O aluminum belongs to the aluminum alloys classification, while annealed S46910 stainless steel belongs to the iron alloys. There are 26 material properties with values for both materials. Properties with values for just one material (8, 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 3104-O aluminum and the bottom bar is annealed S46910 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
200
Elongation at Break, % 20
11
Fatigue Strength, MPa 74
250
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 26
76
Shear Strength, MPa 110
410
Tensile Strength: Ultimate (UTS), MPa 170
680
Tensile Strength: Yield (Proof), MPa 68
450

Thermal Properties

Latent Heat of Fusion, J/g 400
280
Maximum Temperature: Mechanical, °C 180
810
Melting Completion (Liquidus), °C 650
1460
Melting Onset (Solidus), °C 600
1420
Specific Heat Capacity, J/kg-K 900
470
Thermal Expansion, µm/m-K 23
11

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
18
Density, g/cm3 2.8
7.9
Embodied Carbon, kg CO2/kg material 8.4
4.1
Embodied Energy, MJ/kg 150
55
Embodied Water, L/kg 1180
140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 28
69
Resilience: Unit (Modulus of Resilience), kJ/m3 34
510
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 50
24
Strength to Weight: Axial, points 17
24
Strength to Weight: Bending, points 25
22
Thermal Shock Resistance, points 7.6
23

Alloy Composition

Aluminum (Al), % 95.1 to 98.4
0.15 to 0.5
Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0
11 to 13
Copper (Cu), % 0.050 to 0.25
1.5 to 3.5
Gallium (Ga), % 0 to 0.050
0
Iron (Fe), % 0 to 0.8
65 to 76
Magnesium (Mg), % 0.8 to 1.3
0
Manganese (Mn), % 0.8 to 1.4
0 to 1.0
Molybdenum (Mo), % 0
3.0 to 5.0
Nickel (Ni), % 0
8.0 to 10
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0 to 0.6
0 to 0.7
Sulfur (S), % 0
0 to 0.015
Titanium (Ti), % 0 to 0.1
0.5 to 1.2
Vanadium (V), % 0 to 0.050
0
Zinc (Zn), % 0 to 0.25
0
Residuals, % 0 to 0.15
0