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AISI 316 Stainless Steel vs. C443.0 Aluminum

AISI 316 stainless steel belongs to the iron alloys classification, while C443.0 aluminum belongs to the aluminum alloys. There are 31 material properties with values for both materials. Properties with values for just one material (5, 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 316 stainless steel and the bottom bar is C443.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160 to 360
65
Elastic (Young's, Tensile) Modulus, GPa 200
71
Elongation at Break, % 8.0 to 55
9.0
Fatigue Strength, MPa 210 to 430
120
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 78
27
Shear Strength, MPa 350 to 690
130
Tensile Strength: Ultimate (UTS), MPa 520 to 1180
230
Tensile Strength: Yield (Proof), MPa 230 to 850
100

Thermal Properties

Latent Heat of Fusion, J/g 290
470
Maximum Temperature: Mechanical, °C 590
170
Melting Completion (Liquidus), °C 1400
630
Melting Onset (Solidus), °C 1380
600
Specific Heat Capacity, J/kg-K 470
900
Thermal Conductivity, W/m-K 15
140
Thermal Expansion, µm/m-K 16
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
37
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
120

Otherwise Unclassified Properties

Base Metal Price, % relative 19
9.5
Density, g/cm3 7.9
2.7
Embodied Carbon, kg CO2/kg material 3.9
7.9
Embodied Energy, MJ/kg 53
150
Embodied Water, L/kg 150
1120

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 85 to 260
17
Resilience: Unit (Modulus of Resilience), kJ/m3 130 to 1820
70
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 25
51
Strength to Weight: Axial, points 18 to 41
24
Strength to Weight: Bending, points 18 to 31
31
Thermal Diffusivity, mm2/s 4.1
58
Thermal Shock Resistance, points 11 to 26
10

Alloy Composition

Aluminum (Al), % 0
89.6 to 95.5
Carbon (C), % 0 to 0.080
0
Chromium (Cr), % 16 to 18
0
Copper (Cu), % 0
0 to 0.6
Iron (Fe), % 62 to 72
0 to 2.0
Magnesium (Mg), % 0
0 to 0.1
Manganese (Mn), % 0 to 2.0
0 to 0.35
Molybdenum (Mo), % 2.0 to 3.0
0
Nickel (Ni), % 10 to 14
0 to 0.5
Nitrogen (N), % 0 to 0.1
0
Phosphorus (P), % 0 to 0.045
0
Silicon (Si), % 0 to 0.75
4.5 to 6.0
Sulfur (S), % 0 to 0.030
0
Tin (Sn), % 0
0 to 0.15
Zinc (Zn), % 0
0 to 0.5
Residuals, % 0
0 to 0.25