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N08926 Stainless Steel vs. 7076 Aluminum

N08926 stainless steel belongs to the iron alloys classification, while 7076 aluminum belongs to the aluminum alloys. There are 30 material properties with values for both materials. Properties with values for just one material (3, 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 7076 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
70
Elongation at Break, % 40
6.2
Fatigue Strength, MPa 290
170
Poisson's Ratio 0.28
0.32
Shear Modulus, GPa 80
27
Shear Strength, MPa 500
310
Tensile Strength: Ultimate (UTS), MPa 740
530
Tensile Strength: Yield (Proof), MPa 330
460

Thermal Properties

Latent Heat of Fusion, J/g 300
380
Maximum Temperature: Mechanical, °C 1100
170
Melting Completion (Liquidus), °C 1460
630
Melting Onset (Solidus), °C 1410
460
Specific Heat Capacity, J/kg-K 460
860
Thermal Conductivity, W/m-K 12
140
Thermal Expansion, µm/m-K 16
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
35
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
100

Otherwise Unclassified Properties

Base Metal Price, % relative 33
9.5
Density, g/cm3 8.1
3.0
Embodied Carbon, kg CO2/kg material 6.2
8.0
Embodied Energy, MJ/kg 84
150
Embodied Water, L/kg 200
1110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 240
31
Resilience: Unit (Modulus of Resilience), kJ/m3 270
1510
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
45
Strength to Weight: Axial, points 25
49
Strength to Weight: Bending, points 22
48
Thermal Diffusivity, mm2/s 3.2
54
Thermal Shock Resistance, points 16
23

Alloy Composition

Aluminum (Al), % 0
86.9 to 91.2
Carbon (C), % 0 to 0.020
0
Chromium (Cr), % 19 to 21
0
Copper (Cu), % 0.5 to 1.5
0.3 to 1.0
Iron (Fe), % 41.7 to 50.4
0 to 0.6
Magnesium (Mg), % 0
1.2 to 2.0
Manganese (Mn), % 0 to 2.0
0.3 to 0.8
Molybdenum (Mo), % 6.0 to 7.0
0
Nickel (Ni), % 24 to 26
0
Nitrogen (N), % 0.15 to 0.25
0
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0 to 0.5
0 to 0.4
Sulfur (S), % 0 to 0.010
0
Titanium (Ti), % 0
0 to 0.2
Zinc (Zn), % 0
7.0 to 8.0
Residuals, % 0
0 to 0.15