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A384.0 Aluminum vs. S30452 Stainless Steel

A384.0 aluminum belongs to the aluminum alloys classification, while S30452 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 A384.0 aluminum and the bottom bar is S30452 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 74
200
Elongation at Break, % 2.5
34
Fatigue Strength, MPa 140
250
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 28
77
Shear Strength, MPa 200
440
Tensile Strength: Ultimate (UTS), MPa 330
660
Tensile Strength: Yield (Proof), MPa 170
310

Thermal Properties

Latent Heat of Fusion, J/g 550
290
Maximum Temperature: Mechanical, °C 170
960
Melting Completion (Liquidus), °C 610
1420
Melting Onset (Solidus), °C 510
1380
Specific Heat Capacity, J/kg-K 880
480
Thermal Conductivity, W/m-K 96
16
Thermal Expansion, µm/m-K 21
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 23
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 73
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 11
15
Density, g/cm3 2.8
7.8
Embodied Carbon, kg CO2/kg material 7.5
3.0
Embodied Energy, MJ/kg 140
43
Embodied Water, L/kg 1010
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 6.9
180
Resilience: Unit (Modulus of Resilience), kJ/m3 180
250
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 50
25
Strength to Weight: Axial, points 32
23
Strength to Weight: Bending, points 38
22
Thermal Diffusivity, mm2/s 39
4.2
Thermal Shock Resistance, points 15
15

Alloy Composition

Aluminum (Al), % 79.3 to 86.5
0
Carbon (C), % 0
0 to 0.080
Chromium (Cr), % 0
18 to 20
Copper (Cu), % 3.0 to 4.5
0
Iron (Fe), % 0 to 1.3
66.3 to 73.8
Magnesium (Mg), % 0 to 0.1
0
Manganese (Mn), % 0 to 0.5
0 to 2.0
Nickel (Ni), % 0 to 0.5
8.0 to 10.5
Nitrogen (N), % 0
0.16 to 0.3
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 10.5 to 12
0 to 0.75
Sulfur (S), % 0
0 to 0.030
Tin (Sn), % 0 to 0.35
0
Zinc (Zn), % 0 to 1.0
0
Residuals, % 0 to 0.5
0