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N08926 Stainless Steel vs. EN AC-47100 Aluminum

N08926 stainless steel belongs to the iron alloys classification, while EN AC-47100 aluminum belongs to the aluminum alloys. There are 29 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 N08926 stainless steel and the bottom bar is EN AC-47100 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
73
Elongation at Break, % 40
1.1
Fatigue Strength, MPa 290
110
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 80
27
Tensile Strength: Ultimate (UTS), MPa 740
270
Tensile Strength: Yield (Proof), MPa 330
160

Thermal Properties

Latent Heat of Fusion, J/g 300
570
Maximum Temperature: Mechanical, °C 1100
170
Melting Completion (Liquidus), °C 1460
590
Melting Onset (Solidus), °C 1410
560
Specific Heat Capacity, J/kg-K 460
890
Thermal Conductivity, W/m-K 12
130
Thermal Expansion, µm/m-K 16
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
30
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
100

Otherwise Unclassified Properties

Base Metal Price, % relative 33
9.5
Density, g/cm3 8.1
2.6
Embodied Carbon, kg CO2/kg material 6.2
7.6
Embodied Energy, MJ/kg 84
140
Embodied Water, L/kg 200
1030

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 240
2.6
Resilience: Unit (Modulus of Resilience), kJ/m3 270
170
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 24
53
Strength to Weight: Axial, points 25
28
Strength to Weight: Bending, points 22
35
Thermal Diffusivity, mm2/s 3.2
54
Thermal Shock Resistance, points 16
12

Alloy Composition

Aluminum (Al), % 0
81.4 to 88.8
Carbon (C), % 0 to 0.020
0
Chromium (Cr), % 19 to 21
0 to 0.1
Copper (Cu), % 0.5 to 1.5
0.7 to 1.2
Iron (Fe), % 41.7 to 50.4
0 to 1.3
Lead (Pb), % 0
0 to 0.2
Magnesium (Mg), % 0
0 to 0.35
Manganese (Mn), % 0 to 2.0
0 to 0.55
Molybdenum (Mo), % 6.0 to 7.0
0
Nickel (Ni), % 24 to 26
0 to 0.3
Nitrogen (N), % 0.15 to 0.25
0
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0 to 0.5
10.5 to 13.5
Sulfur (S), % 0 to 0.010
0
Tin (Sn), % 0
0 to 0.1
Titanium (Ti), % 0
0 to 0.2
Zinc (Zn), % 0
0 to 0.55
Residuals, % 0
0 to 0.25