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AISI 202 Stainless Steel vs. 443.0 Aluminum

AISI 202 stainless steel belongs to the iron alloys classification, while 443.0 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 202 stainless steel and the bottom bar is 443.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210 to 300
41
Elastic (Young's, Tensile) Modulus, GPa 200
71
Elongation at Break, % 14 to 45
5.6
Fatigue Strength, MPa 290 to 330
55
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 77
27
Shear Strength, MPa 490 to 590
96
Tensile Strength: Ultimate (UTS), MPa 700 to 980
150
Tensile Strength: Yield (Proof), MPa 310 to 580
65

Thermal Properties

Latent Heat of Fusion, J/g 290
470
Maximum Temperature: Mechanical, °C 910
180
Melting Completion (Liquidus), °C 1400
630
Melting Onset (Solidus), °C 1360
580
Specific Heat Capacity, J/kg-K 480
900
Thermal Conductivity, W/m-K 15
150
Thermal Expansion, µm/m-K 17
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
38
Electrical Conductivity: Equal Weight (Specific), % IACS 2.9
130

Otherwise Unclassified Properties

Base Metal Price, % relative 13
9.5
Density, g/cm3 7.7
2.7
Embodied Carbon, kg CO2/kg material 2.8
8.0
Embodied Energy, MJ/kg 40
150
Embodied Water, L/kg 150
1120

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120 to 260
6.9
Resilience: Unit (Modulus of Resilience), kJ/m3 250 to 840
30
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 25
52
Strength to Weight: Axial, points 25 to 35
16
Strength to Weight: Bending, points 23 to 29
23
Thermal Diffusivity, mm2/s 4.0
61
Thermal Shock Resistance, points 15 to 21
6.9

Alloy Composition

Aluminum (Al), % 0
90.7 to 95.5
Carbon (C), % 0 to 0.15
0
Chromium (Cr), % 17 to 19
0 to 0.25
Copper (Cu), % 0
0 to 0.6
Iron (Fe), % 63.5 to 71.5
0 to 0.8
Magnesium (Mg), % 0
0 to 0.050
Manganese (Mn), % 7.5 to 10
0 to 0.5
Nickel (Ni), % 4.0 to 6.0
0
Nitrogen (N), % 0 to 0.25
0
Phosphorus (P), % 0 to 0.060
0
Silicon (Si), % 0 to 1.0
4.5 to 6.0
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0
0 to 0.25
Zinc (Zn), % 0
0 to 0.5
Residuals, % 0
0 to 0.35