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S46500 Stainless Steel vs. 771.0 Aluminum

S46500 stainless steel belongs to the iron alloys classification, while 771.0 aluminum belongs to the aluminum alloys. There are 24 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 S46500 stainless steel and the bottom bar is 771.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
70
Elongation at Break, % 2.3 to 14
1.7 to 6.5
Fatigue Strength, MPa 550 to 890
92 to 180
Poisson's Ratio 0.28
0.32
Shear Modulus, GPa 75
26
Tensile Strength: Ultimate (UTS), MPa 1260 to 1930
250 to 370
Tensile Strength: Yield (Proof), MPa 1120 to 1810
210 to 350

Thermal Properties

Latent Heat of Fusion, J/g 280
380
Maximum Temperature: Mechanical, °C 780
180
Melting Completion (Liquidus), °C 1450
630
Melting Onset (Solidus), °C 1410
620
Specific Heat Capacity, J/kg-K 470
870
Thermal Expansion, µm/m-K 11
24

Otherwise Unclassified Properties

Base Metal Price, % relative 15
9.5
Density, g/cm3 7.9
3.0
Embodied Carbon, kg CO2/kg material 3.6
8.0
Embodied Energy, MJ/kg 51
150
Embodied Water, L/kg 120
1130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 43 to 210
4.4 to 20
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
46
Strength to Weight: Axial, points 44 to 68
23 to 35
Strength to Weight: Bending, points 33 to 44
29 to 39
Thermal Shock Resistance, points 44 to 67
11 to 16

Alloy Composition

Aluminum (Al), % 0
90.5 to 92.5
Carbon (C), % 0 to 0.020
0
Chromium (Cr), % 11 to 12.5
0.060 to 0.2
Copper (Cu), % 0
0 to 0.1
Iron (Fe), % 72.6 to 76.1
0 to 0.15
Magnesium (Mg), % 0
0.8 to 1.0
Manganese (Mn), % 0 to 0.25
0 to 0.1
Molybdenum (Mo), % 0.75 to 1.3
0
Nickel (Ni), % 10.7 to 11.3
0
Nitrogen (N), % 0 to 0.010
0
Phosphorus (P), % 0 to 0.015
0
Silicon (Si), % 0 to 0.25
0 to 0.15
Sulfur (S), % 0 to 0.010
0
Titanium (Ti), % 1.5 to 1.8
0.1 to 0.2
Zinc (Zn), % 0
6.5 to 7.5
Residuals, % 0
0 to 0.15