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213.0 Aluminum vs. S20431 Stainless Steel

213.0 aluminum belongs to the aluminum alloys classification, while S20431 stainless steel belongs to the iron alloys. There are 30 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 213.0 aluminum and the bottom bar is S20431 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 85
210
Elastic (Young's, Tensile) Modulus, GPa 73
200
Elongation at Break, % 1.5
46
Fatigue Strength, MPa 93
320
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 28
76
Tensile Strength: Ultimate (UTS), MPa 190
710
Tensile Strength: Yield (Proof), MPa 130
350

Thermal Properties

Latent Heat of Fusion, J/g 410
280
Maximum Temperature: Mechanical, °C 170
890
Melting Completion (Liquidus), °C 670
1400
Melting Onset (Solidus), °C 480
1360
Specific Heat Capacity, J/kg-K 850
480
Thermal Conductivity, W/m-K 130
15
Thermal Expansion, µm/m-K 23
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 34
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 94
2.8

Otherwise Unclassified Properties

Base Metal Price, % relative 11
12
Density, g/cm3 3.2
7.7
Embodied Carbon, kg CO2/kg material 7.7
2.5
Embodied Energy, MJ/kg 140
36
Embodied Water, L/kg 1090
140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.5
270
Resilience: Unit (Modulus of Resilience), kJ/m3 120
310
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 44
25
Strength to Weight: Axial, points 16
25
Strength to Weight: Bending, points 23
23
Thermal Diffusivity, mm2/s 49
4.0
Thermal Shock Resistance, points 8.0
15

Alloy Composition

Aluminum (Al), % 83.5 to 93
0
Carbon (C), % 0
0 to 0.12
Chromium (Cr), % 0
17 to 18
Copper (Cu), % 6.0 to 8.0
1.5 to 3.5
Iron (Fe), % 0 to 1.2
66.1 to 74.4
Magnesium (Mg), % 0 to 0.1
0
Manganese (Mn), % 0 to 0.6
5.0 to 7.0
Nickel (Ni), % 0 to 0.35
2.0 to 4.0
Nitrogen (N), % 0
0.1 to 0.25
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 1.0 to 3.0
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 0 to 0.25
0
Zinc (Zn), % 0 to 2.5
0
Residuals, % 0 to 0.5
0