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EN AC-48000 Aluminum vs. N08031 Stainless Steel

EN AC-48000 aluminum belongs to the aluminum alloys classification, while N08031 stainless steel belongs to the iron alloys. There are 27 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 EN AC-48000 aluminum and the bottom bar is N08031 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 73
210
Elongation at Break, % 1.0
45
Fatigue Strength, MPa 85 to 86
290
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 28
81
Tensile Strength: Ultimate (UTS), MPa 220 to 310
730
Tensile Strength: Yield (Proof), MPa 210 to 270
310

Thermal Properties

Latent Heat of Fusion, J/g 570
310
Maximum Temperature: Mechanical, °C 190
1100
Melting Completion (Liquidus), °C 600
1440
Melting Onset (Solidus), °C 560
1390
Specific Heat Capacity, J/kg-K 890
460
Thermal Conductivity, W/m-K 130
12
Thermal Expansion, µm/m-K 21
18

Otherwise Unclassified Properties

Base Metal Price, % relative 10
39
Density, g/cm3 2.7
8.1
Embodied Carbon, kg CO2/kg material 7.9
7.1
Embodied Energy, MJ/kg 140
96
Embodied Water, L/kg 1030
240

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.2 to 3.0
270
Resilience: Unit (Modulus of Resilience), kJ/m3 300 to 510
230
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 53
24
Strength to Weight: Axial, points 23 to 33
25
Strength to Weight: Bending, points 31 to 39
22
Thermal Diffusivity, mm2/s 54
3.1
Thermal Shock Resistance, points 10 to 15
14

Alloy Composition

Aluminum (Al), % 80.4 to 87.2
0
Carbon (C), % 0
0 to 0.015
Chromium (Cr), % 0
26 to 28
Copper (Cu), % 0.8 to 1.5
1.0 to 1.4
Iron (Fe), % 0 to 0.7
29 to 36.9
Magnesium (Mg), % 0.8 to 1.5
0
Manganese (Mn), % 0 to 0.35
0 to 2.0
Molybdenum (Mo), % 0
6.0 to 7.0
Nickel (Ni), % 0.7 to 1.3
30 to 32
Nitrogen (N), % 0
0.15 to 0.25
Phosphorus (P), % 0
0 to 0.020
Silicon (Si), % 10.5 to 13.5
0 to 0.3
Sulfur (S), % 0
0 to 0.010
Titanium (Ti), % 0 to 0.25
0
Zinc (Zn), % 0 to 0.35
0
Residuals, % 0 to 0.15
0