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AISI 202 Stainless Steel vs. 518.0 Aluminum

AISI 202 stainless steel belongs to the iron alloys classification, while 518.0 aluminum belongs to the aluminum alloys. There are 31 material properties with values for both materials. Properties with values for just one material (2, 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 518.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210 to 300
80
Elastic (Young's, Tensile) Modulus, GPa 200
67
Elongation at Break, % 14 to 45
5.0
Fatigue Strength, MPa 290 to 330
140
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 77
25
Shear Strength, MPa 490 to 590
200
Tensile Strength: Ultimate (UTS), MPa 700 to 980
310
Tensile Strength: Yield (Proof), MPa 310 to 580
190

Thermal Properties

Latent Heat of Fusion, J/g 290
390
Maximum Temperature: Mechanical, °C 910
170
Melting Completion (Liquidus), °C 1400
620
Melting Onset (Solidus), °C 1360
560
Specific Heat Capacity, J/kg-K 480
900
Thermal Conductivity, W/m-K 15
98
Thermal Expansion, µm/m-K 17
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
24
Electrical Conductivity: Equal Weight (Specific), % IACS 2.9
81

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
9.4
Embodied Energy, MJ/kg 40
150
Embodied Water, L/kg 150
1160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120 to 260
14
Resilience: Unit (Modulus of Resilience), kJ/m3 250 to 840
270
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
51
Strength to Weight: Axial, points 25 to 35
32
Strength to Weight: Bending, points 23 to 29
38
Thermal Diffusivity, mm2/s 4.0
40
Thermal Shock Resistance, points 15 to 21
14

Alloy Composition

Aluminum (Al), % 0
88.1 to 92.5
Carbon (C), % 0 to 0.15
0
Chromium (Cr), % 17 to 19
0
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 63.5 to 71.5
0 to 1.8
Magnesium (Mg), % 0
7.5 to 8.5
Manganese (Mn), % 7.5 to 10
0 to 0.35
Nickel (Ni), % 4.0 to 6.0
0 to 0.15
Nitrogen (N), % 0 to 0.25
0
Phosphorus (P), % 0 to 0.060
0
Silicon (Si), % 0 to 1.0
0 to 0.35
Sulfur (S), % 0 to 0.030
0
Tin (Sn), % 0
0 to 0.15
Zinc (Zn), % 0
0 to 0.15
Residuals, % 0
0 to 0.25