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852.0 Aluminum vs. AISI 439 Stainless Steel

852.0 aluminum belongs to the aluminum alloys classification, while AISI 439 stainless steel belongs to the iron alloys. There are 31 material properties with values for both materials. Properties with values for just one material (6, 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 852.0 aluminum and the bottom bar is AISI 439 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 64
160
Elastic (Young's, Tensile) Modulus, GPa 70
200
Elongation at Break, % 3.4
23
Fatigue Strength, MPa 73
170
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 26
77
Shear Strength, MPa 130
310
Tensile Strength: Ultimate (UTS), MPa 200
490
Tensile Strength: Yield (Proof), MPa 150
250

Thermal Properties

Latent Heat of Fusion, J/g 370
280
Maximum Temperature: Mechanical, °C 190
890
Melting Completion (Liquidus), °C 640
1510
Melting Onset (Solidus), °C 210
1430
Specific Heat Capacity, J/kg-K 840
480
Thermal Conductivity, W/m-K 180
25
Thermal Expansion, µm/m-K 23
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 45
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 130
3.4

Otherwise Unclassified Properties

Base Metal Price, % relative 15
9.0
Density, g/cm3 3.2
7.7
Embodied Carbon, kg CO2/kg material 8.5
2.3
Embodied Energy, MJ/kg 160
34
Embodied Water, L/kg 1150
120

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 6.2
95
Resilience: Unit (Modulus of Resilience), kJ/m3 160
160
Stiffness to Weight: Axial, points 12
14
Stiffness to Weight: Bending, points 43
25
Strength to Weight: Axial, points 17
18
Strength to Weight: Bending, points 24
18
Thermal Diffusivity, mm2/s 65
6.7
Thermal Shock Resistance, points 8.7
16

Alloy Composition

Aluminum (Al), % 86.6 to 91.3
0 to 0.15
Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0
17 to 19
Copper (Cu), % 1.7 to 2.3
0
Iron (Fe), % 0 to 0.7
77.1 to 82.8
Magnesium (Mg), % 0.6 to 0.9
0
Manganese (Mn), % 0 to 0.1
0 to 1.0
Nickel (Ni), % 0.9 to 1.5
0 to 0.5
Nitrogen (N), % 0
0 to 0.030
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.4
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Tin (Sn), % 5.5 to 7.0
0
Titanium (Ti), % 0 to 0.2
0.2 to 1.1
Residuals, % 0 to 0.3
0