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AISI 302 Stainless Steel vs. 850.0 Aluminum

AISI 302 stainless steel belongs to the iron alloys classification, while 850.0 aluminum belongs to the aluminum 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 AISI 302 stainless steel and the bottom bar is 850.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170 to 440
45
Elastic (Young's, Tensile) Modulus, GPa 200
69
Elongation at Break, % 4.5 to 46
7.9
Fatigue Strength, MPa 210 to 520
59
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 77
26
Shear Strength, MPa 400 to 830
100
Tensile Strength: Ultimate (UTS), MPa 580 to 1430
140
Tensile Strength: Yield (Proof), MPa 230 to 1100
76

Thermal Properties

Latent Heat of Fusion, J/g 280
380
Maximum Temperature: Mechanical, °C 710
190
Melting Completion (Liquidus), °C 1420
650
Melting Onset (Solidus), °C 1400
370
Specific Heat Capacity, J/kg-K 480
850
Thermal Conductivity, W/m-K 16
180
Thermal Expansion, µm/m-K 17
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
47
Electrical Conductivity: Equal Weight (Specific), % IACS 2.8
140

Otherwise Unclassified Properties

Base Metal Price, % relative 15
14
Density, g/cm3 7.8
3.1
Embodied Carbon, kg CO2/kg material 3.0
8.5
Embodied Energy, MJ/kg 42
160
Embodied Water, L/kg 140
1160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 59 to 260
9.1
Resilience: Unit (Modulus of Resilience), kJ/m3 140 to 3070
42
Stiffness to Weight: Axial, points 14
12
Stiffness to Weight: Bending, points 25
44
Strength to Weight: Axial, points 21 to 51
12
Strength to Weight: Bending, points 20 to 36
19
Thermal Diffusivity, mm2/s 4.4
69
Thermal Shock Resistance, points 12 to 31
6.1

Alloy Composition

Aluminum (Al), % 0
88.3 to 93.1
Carbon (C), % 0 to 0.15
0
Chromium (Cr), % 17 to 19
0
Copper (Cu), % 0
0.7 to 1.3
Iron (Fe), % 67.9 to 75
0 to 0.7
Magnesium (Mg), % 0
0 to 0.1
Manganese (Mn), % 0 to 2.0
0 to 0.1
Nickel (Ni), % 8.0 to 10
0.7 to 1.3
Nitrogen (N), % 0 to 0.1
0
Phosphorus (P), % 0 to 0.045
0
Silicon (Si), % 0 to 0.75
0 to 0.7
Sulfur (S), % 0 to 0.030
0
Tin (Sn), % 0
5.5 to 7.0
Titanium (Ti), % 0
0 to 0.2
Residuals, % 0
0 to 0.3