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EN AC-45300 Aluminum vs. N08031 Stainless Steel

EN AC-45300 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-45300 aluminum and the bottom bar is N08031 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 71
210
Elongation at Break, % 1.0 to 2.8
45
Fatigue Strength, MPa 59 to 72
290
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 27
81
Tensile Strength: Ultimate (UTS), MPa 220 to 290
730
Tensile Strength: Yield (Proof), MPa 150 to 230
310

Thermal Properties

Latent Heat of Fusion, J/g 470
310
Maximum Temperature: Mechanical, °C 170
1100
Melting Completion (Liquidus), °C 630
1440
Melting Onset (Solidus), °C 590
1390
Specific Heat Capacity, J/kg-K 890
460
Thermal Conductivity, W/m-K 150
12
Thermal Expansion, µm/m-K 22
18

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
39
Density, g/cm3 2.7
8.1
Embodied Carbon, kg CO2/kg material 8.0
7.1
Embodied Energy, MJ/kg 150
96
Embodied Water, L/kg 1120
240

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.7 to 5.6
270
Resilience: Unit (Modulus of Resilience), kJ/m3 160 to 390
230
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 50
24
Strength to Weight: Axial, points 23 to 29
25
Strength to Weight: Bending, points 30 to 35
22
Thermal Diffusivity, mm2/s 60
3.1
Thermal Shock Resistance, points 10 to 13
14

Alloy Composition

Aluminum (Al), % 90.2 to 94.2
0
Carbon (C), % 0
0 to 0.015
Chromium (Cr), % 0
26 to 28
Copper (Cu), % 1.0 to 1.5
1.0 to 1.4
Iron (Fe), % 0 to 0.65
29 to 36.9
Lead (Pb), % 0 to 0.15
0
Magnesium (Mg), % 0.35 to 0.65
0
Manganese (Mn), % 0 to 0.55
0 to 2.0
Molybdenum (Mo), % 0
6.0 to 7.0
Nickel (Ni), % 0 to 0.25
30 to 32
Nitrogen (N), % 0
0.15 to 0.25
Phosphorus (P), % 0
0 to 0.020
Silicon (Si), % 4.5 to 5.5
0 to 0.3
Sulfur (S), % 0
0 to 0.010
Tin (Sn), % 0 to 0.050
0
Titanium (Ti), % 0 to 0.25
0
Zinc (Zn), % 0 to 0.15
0
Residuals, % 0 to 0.15
0