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AISI 310S Stainless Steel vs. B443.0 Aluminum

AISI 310S stainless steel belongs to the iron alloys classification, while B443.0 aluminum belongs to the aluminum alloys. There are 31 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 AISI 310S stainless steel and the bottom bar is B443.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170 to 210
43
Elastic (Young's, Tensile) Modulus, GPa 200
70
Elongation at Break, % 34 to 44
4.9
Fatigue Strength, MPa 250 to 280
55
Poisson's Ratio 0.27
0.33
Shear Modulus, GPa 79
26
Shear Strength, MPa 420 to 470
110
Tensile Strength: Ultimate (UTS), MPa 600 to 710
150
Tensile Strength: Yield (Proof), MPa 270 to 350
50

Thermal Properties

Latent Heat of Fusion, J/g 310
470
Maximum Temperature: Mechanical, °C 1100
170
Melting Completion (Liquidus), °C 1450
620
Melting Onset (Solidus), °C 1400
600
Specific Heat Capacity, J/kg-K 480
900
Thermal Conductivity, W/m-K 16
150
Thermal Expansion, µm/m-K 16
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
38
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
130

Otherwise Unclassified Properties

Base Metal Price, % relative 25
9.5
Density, g/cm3 7.9
2.7
Embodied Carbon, kg CO2/kg material 4.3
8.0
Embodied Energy, MJ/kg 61
150
Embodied Water, L/kg 190
1130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 200 to 220
5.6
Resilience: Unit (Modulus of Resilience), kJ/m3 190 to 310
18
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 25
52
Strength to Weight: Axial, points 21 to 25
15
Strength to Weight: Bending, points 20 to 22
23
Thermal Diffusivity, mm2/s 4.1
61
Thermal Shock Resistance, points 14 to 16
6.8

Alloy Composition


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Aluminum (Al), % 0
91.9 to 95.5
Carbon (C), % 0 to 0.080
0
Chromium (Cr), % 24 to 26
0
Copper (Cu), % 0
0 to 0.15
Iron (Fe), % 48.3 to 57
0 to 0.8
Magnesium (Mg), % 0
0 to 0.050
Manganese (Mn), % 0 to 2.0
0 to 0.35
Nickel (Ni), % 19 to 22
0
Phosphorus (P), % 0 to 0.045
0
Silicon (Si), % 0 to 1.5
4.5 to 6.0
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0
0 to 0.25
Zinc (Zn), % 0
0 to 0.35
Residuals, % 0
0 to 0.15