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242.0 Aluminum vs. S46500 Stainless Steel

242.0 aluminum belongs to the aluminum alloys classification, while S46500 stainless steel belongs to the iron alloys. There are 25 material properties with values for both materials. Properties with values for just one material (11, 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 242.0 aluminum and the bottom bar is S46500 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 73
190
Elongation at Break, % 0.5 to 1.5
2.3 to 14
Fatigue Strength, MPa 55 to 110
550 to 890
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 27
75
Shear Strength, MPa 150 to 240
730 to 1120
Tensile Strength: Ultimate (UTS), MPa 180 to 290
1260 to 1930
Tensile Strength: Yield (Proof), MPa 120 to 220
1120 to 1810

Thermal Properties

Latent Heat of Fusion, J/g 390
280
Maximum Temperature: Mechanical, °C 210
780
Melting Completion (Liquidus), °C 640
1450
Melting Onset (Solidus), °C 530
1410
Specific Heat Capacity, J/kg-K 870
470
Thermal Expansion, µm/m-K 22
11

Otherwise Unclassified Properties

Base Metal Price, % relative 12
15
Density, g/cm3 3.1
7.9
Embodied Carbon, kg CO2/kg material 8.3
3.6
Embodied Energy, MJ/kg 150
51
Embodied Water, L/kg 1130
120

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 1.3 to 3.4
43 to 210
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 45
25
Strength to Weight: Axial, points 16 to 26
44 to 68
Strength to Weight: Bending, points 23 to 32
33 to 44
Thermal Shock Resistance, points 8.0 to 13
44 to 67

Alloy Composition

Aluminum (Al), % 88.4 to 93.6
0
Carbon (C), % 0
0 to 0.020
Chromium (Cr), % 0 to 0.25
11 to 12.5
Copper (Cu), % 3.5 to 4.5
0
Iron (Fe), % 0 to 1.0
72.6 to 76.1
Magnesium (Mg), % 1.2 to 1.8
0
Manganese (Mn), % 0 to 0.35
0 to 0.25
Molybdenum (Mo), % 0
0.75 to 1.3
Nickel (Ni), % 1.7 to 2.3
10.7 to 11.3
Nitrogen (N), % 0
0 to 0.010
Phosphorus (P), % 0
0 to 0.015
Silicon (Si), % 0 to 0.7
0 to 0.25
Sulfur (S), % 0
0 to 0.010
Titanium (Ti), % 0 to 0.25
1.5 to 1.8
Zinc (Zn), % 0 to 0.35
0
Residuals, % 0 to 0.15
0

Comparable Variants