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A390.0 Aluminum vs. S64512 Stainless Steel

A390.0 aluminum belongs to the aluminum alloys classification, while S64512 stainless steel belongs to the iron alloys. There are 30 material properties with values for both materials. Properties with values for just one material (5, 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 A390.0 aluminum and the bottom bar is S64512 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 110 to 140
330
Elastic (Young's, Tensile) Modulus, GPa 75
200
Elongation at Break, % 0.87 to 0.91
17
Fatigue Strength, MPa 70 to 100
540
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 28
76
Tensile Strength: Ultimate (UTS), MPa 190 to 290
1140
Tensile Strength: Yield (Proof), MPa 190 to 290
890

Thermal Properties

Latent Heat of Fusion, J/g 640
270
Maximum Temperature: Mechanical, °C 170
750
Melting Completion (Liquidus), °C 580
1460
Melting Onset (Solidus), °C 480
1420
Specific Heat Capacity, J/kg-K 880
470
Thermal Conductivity, W/m-K 130
28
Thermal Expansion, µm/m-K 20
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 20
3.6
Electrical Conductivity: Equal Weight (Specific), % IACS 67
4.1

Otherwise Unclassified Properties

Base Metal Price, % relative 11
10
Density, g/cm3 2.7
7.8
Embodied Carbon, kg CO2/kg material 7.3
3.3
Embodied Energy, MJ/kg 140
47
Embodied Water, L/kg 950
110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 1.6 to 2.6
180
Resilience: Unit (Modulus of Resilience), kJ/m3 240 to 580
2020
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 52
25
Strength to Weight: Axial, points 19 to 30
40
Strength to Weight: Bending, points 27 to 36
31
Thermal Diffusivity, mm2/s 56
7.5
Thermal Shock Resistance, points 9.0 to 14
42

Alloy Composition

Aluminum (Al), % 75.3 to 79.6
0
Carbon (C), % 0
0.080 to 0.15
Chromium (Cr), % 0
11 to 12.5
Copper (Cu), % 4.0 to 5.0
0
Iron (Fe), % 0 to 0.5
80.6 to 84.7
Magnesium (Mg), % 0.45 to 0.65
0
Manganese (Mn), % 0 to 0.1
0.5 to 0.9
Molybdenum (Mo), % 0
1.5 to 2.0
Nickel (Ni), % 0
2.0 to 3.0
Nitrogen (N), % 0
0.010 to 0.050
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 16 to 18
0 to 0.35
Sulfur (S), % 0
0 to 0.025
Titanium (Ti), % 0 to 0.2
0
Vanadium (V), % 0
0.25 to 0.4
Zinc (Zn), % 0 to 0.1
0
Residuals, % 0 to 0.2
0