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850.0 Aluminum vs. S30415 Stainless Steel

850.0 aluminum belongs to the aluminum alloys classification, while S30415 stainless steel belongs to the iron alloys. There are 31 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 S30415 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 45
190
Elastic (Young's, Tensile) Modulus, GPa 69
200
Elongation at Break, % 7.9
45
Fatigue Strength, MPa 59
300
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 26
77
Shear Strength, MPa 100
470
Tensile Strength: Ultimate (UTS), MPa 140
670
Tensile Strength: Yield (Proof), MPa 76
330

Thermal Properties

Latent Heat of Fusion, J/g 380
300
Maximum Temperature: Mechanical, °C 190
940
Melting Completion (Liquidus), °C 650
1410
Melting Onset (Solidus), °C 370
1370
Specific Heat Capacity, J/kg-K 850
480
Thermal Conductivity, W/m-K 180
21
Thermal Expansion, µm/m-K 23
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 47
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 140
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 14
15
Density, g/cm3 3.1
7.7
Embodied Carbon, kg CO2/kg material 8.5
3.1
Embodied Energy, MJ/kg 160
43
Embodied Water, L/kg 1160
140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 9.1
250
Resilience: Unit (Modulus of Resilience), kJ/m3 42
280
Stiffness to Weight: Axial, points 12
14
Stiffness to Weight: Bending, points 44
25
Strength to Weight: Axial, points 12
24
Strength to Weight: Bending, points 19
22
Thermal Diffusivity, mm2/s 69
5.6
Thermal Shock Resistance, points 6.1
15

Alloy Composition

Aluminum (Al), % 88.3 to 93.1
0
Carbon (C), % 0
0.040 to 0.060
Cerium (Ce), % 0
0.030 to 0.080
Chromium (Cr), % 0
18 to 19
Copper (Cu), % 0.7 to 1.3
0
Iron (Fe), % 0 to 0.7
67.8 to 71.8
Magnesium (Mg), % 0 to 0.1
0
Manganese (Mn), % 0 to 0.1
0 to 0.8
Nickel (Ni), % 0.7 to 1.3
9.0 to 10
Nitrogen (N), % 0
0.12 to 0.18
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 0 to 0.7
1.0 to 2.0
Sulfur (S), % 0
0 to 0.030
Tin (Sn), % 5.5 to 7.0
0
Titanium (Ti), % 0 to 0.2
0
Residuals, % 0 to 0.3
0