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850.0 Aluminum vs. N08801 Stainless Steel

850.0 aluminum belongs to the aluminum alloys classification, while N08801 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 850.0 aluminum and the bottom bar is N08801 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
200
Elongation at Break, % 7.9
34
Fatigue Strength, MPa 59
260
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 26
77
Shear Strength, MPa 100
570
Tensile Strength: Ultimate (UTS), MPa 140
860
Tensile Strength: Yield (Proof), MPa 76
190

Thermal Properties

Latent Heat of Fusion, J/g 380
300
Maximum Temperature: Mechanical, °C 190
1090
Melting Completion (Liquidus), °C 650
1390
Melting Onset (Solidus), °C 370
1360
Specific Heat Capacity, J/kg-K 850
480
Thermal Conductivity, W/m-K 180
12
Thermal Expansion, µm/m-K 23
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 47
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 140
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 14
30
Density, g/cm3 3.1
8.0
Embodied Carbon, kg CO2/kg material 8.5
5.5
Embodied Energy, MJ/kg 160
79
Embodied Water, L/kg 1160
200

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 9.1
220
Resilience: Unit (Modulus of Resilience), kJ/m3 42
92
Stiffness to Weight: Axial, points 12
14
Stiffness to Weight: Bending, points 44
24
Strength to Weight: Axial, points 12
30
Strength to Weight: Bending, points 19
25
Thermal Diffusivity, mm2/s 69
3.3
Thermal Shock Resistance, points 6.1
20

Alloy Composition

Aluminum (Al), % 88.3 to 93.1
0
Carbon (C), % 0
0 to 0.1
Chromium (Cr), % 0
19 to 22
Copper (Cu), % 0.7 to 1.3
0 to 0.5
Iron (Fe), % 0 to 0.7
39.5 to 50.3
Magnesium (Mg), % 0 to 0.1
0
Manganese (Mn), % 0 to 0.1
0 to 1.5
Nickel (Ni), % 0.7 to 1.3
30 to 34
Silicon (Si), % 0 to 0.7
0 to 1.0
Sulfur (S), % 0
0 to 0.015
Tin (Sn), % 5.5 to 7.0
0
Titanium (Ti), % 0 to 0.2
0.75 to 1.5
Residuals, % 0 to 0.3
0