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7075-O Aluminum vs. Annealed AISI 316

7075-O aluminum belongs to the aluminum alloys classification, while annealed AISI 316 belongs to the iron alloys. There are 32 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 7075-O aluminum and the bottom bar is annealed AISI 316.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 59
190
Elastic (Young's, Tensile) Modulus, GPa 70
200
Elongation at Break, % 12
43
Fatigue Strength, MPa 120
210
Poisson's Ratio 0.32
0.28
Shear Modulus, GPa 26
78
Shear Strength, MPa 150
400
Tensile Strength: Ultimate (UTS), MPa 240
570
Tensile Strength: Yield (Proof), MPa 120
230

Thermal Properties

Latent Heat of Fusion, J/g 380
290
Maximum Temperature: Mechanical, °C 200
590
Melting Completion (Liquidus), °C 640
1400
Melting Onset (Solidus), °C 480
1380
Specific Heat Capacity, J/kg-K 870
470
Thermal Conductivity, W/m-K 130
15
Thermal Expansion, µm/m-K 23
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 33
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 98
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 10
19
Calomel Potential, mV -750
-50
Density, g/cm3 3.0
7.9
Embodied Carbon, kg CO2/kg material 8.3
3.9
Embodied Energy, MJ/kg 150
53
Embodied Water, L/kg 1120
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 24
200
Resilience: Unit (Modulus of Resilience), kJ/m3 110
130
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 46
25
Strength to Weight: Axial, points 22
20
Strength to Weight: Bending, points 28
19
Thermal Diffusivity, mm2/s 50
4.1
Thermal Shock Resistance, points 10
13

Alloy Composition


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Aluminum (Al), % 86.9 to 91.4
0
Carbon (C), % 0
0 to 0.080
Chromium (Cr), % 0.18 to 0.28
16 to 18
Copper (Cu), % 1.2 to 2.0
0
Iron (Fe), % 0 to 0.5
62 to 72
Magnesium (Mg), % 2.1 to 2.9
0
Manganese (Mn), % 0 to 0.3
0 to 2.0
Molybdenum (Mo), % 0
2.0 to 3.0
Nickel (Ni), % 0
10 to 14
Nitrogen (N), % 0
0 to 0.1
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 0 to 0.4
0 to 0.75
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 0 to 0.2
0
Zinc (Zn), % 5.1 to 6.1
0
Zirconium (Zr), % 0 to 0.25
0
Residuals, % 0 to 0.15
0