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Compare 7075 Aluminum to AISI 316 Stainless Steel

7075 aluminum belongs to the aluminum alloys classification, while AISI 316 stainless steel belongs to the iron alloys. There are 23 material properties with values for both materials. Properties with values for just one material (2, 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.

Mechanical Properties in Common

Elastic (Young's, Tensile) Modulus, GPa

7075 Aluminum 73
AISI 316 Stainless Steel 220

Elongation at Break, %

7075 Aluminum 1.8 to 12
AISI 316 Stainless Steel 8.1 to 55

Modulus of Resilience (Unit Resilience), kJ/m3

7075 Aluminum 98 to 1850
AISI 316 Stainless Steel 120 to 1690

Poisson's Ratio

7075 Aluminum 0.32
AISI 316 Stainless Steel 0.28

Shear Modulus, GPa

7075 Aluminum 27
AISI 316 Stainless Steel 82

Strength to Weight Ratio, kN-m/kg

7075 Aluminum 76 to 190
AISI 316 Stainless Steel 66 to 150

Tensile Strength: Ultimate (UTS), MPa

7075 Aluminum 230 to 600
AISI 316 Stainless Steel 530 to 1200

Tensile Strength: Yield (Proof), MPa

7075 Aluminum 120 to 520
AISI 316 Stainless Steel 230 to 870

Unit Rupture Work (Ultimate Resilience), MJ/m3

7075 Aluminum 8.1 to 44
AISI 316 Stainless Steel 88 to 260

Sustainability Properties in Common

Embodied Carbon, kg CO2/kg material

7075 Aluminum 8.3
AISI 316 Stainless Steel 3.9

Embodied Energy, MJ/kg

7075 Aluminum 150
AISI 316 Stainless Steel 53

Embodied Water, L/kg

7075 Aluminum 1120
AISI 316 Stainless Steel 150

Thermal Properties in Common

Melting Onset (Solidus), °C

7075 Aluminum 480
AISI 316 Stainless Steel 1380

Specific Heat Capacity, J/kg-K

7075 Aluminum 860
AISI 316 Stainless Steel 450

Thermal Conductivity, W/m-K

7075 Aluminum 130
AISI 316 Stainless Steel 15

Thermal Diffusivity, m2/s

7075 Aluminum 49
AISI 316 Stainless Steel 4.3

Thermal Expansion, µm/m-K

7075 Aluminum 22 to 23
AISI 316 Stainless Steel 13

Electrical Properties in Common

Electrical Conductivity: Equal Volume, % IACS

7075 Aluminum 33
AISI 316 Stainless Steel 13

Electrical Conductivity: Equal Weight (Specific), % IACS

7075 Aluminum 97
AISI 316 Stainless Steel 15

Electrical Resistivity Order of Magnitude, 10x Ω-m

7075 Aluminum -7.0
AISI 316 Stainless Steel -6.5

Otherwise Unclassified Properties in Common

Base Metal Price, % relative

7075 Aluminum 17
AISI 316 Stainless Steel 32

Calomel Potential, mV

7075 Aluminum -750
AISI 316 Stainless Steel -50

Density, g/cm3

7075 Aluminum 3.1
AISI 316 Stainless Steel 7.9

Alloy Composition Comparison

Aluminum (Al), %

7075 Aluminum 86.9 to 91.4
AISI 316 Stainless Steel 0

Carbon (C), %

7075 Aluminum 0
AISI 316 Stainless Steel 0 to 0.080

Chromium (Cr), %

7075 Aluminum 0.18 to 0.28
AISI 316 Stainless Steel 16 to 18.5

Copper (Cu), %

7075 Aluminum 1.2 to 2.0
AISI 316 Stainless Steel 0

Iron (Fe), %

7075 Aluminum 0 to 0.5
AISI 316 Stainless Steel 62 to 72

Magnesium (Mg), %

7075 Aluminum 2.1 to 2.9
AISI 316 Stainless Steel 0

Manganese (Mn), %

7075 Aluminum 0 to 0.3
AISI 316 Stainless Steel 0 to 2.0

Molybdenum (Mo), %

7075 Aluminum 0
AISI 316 Stainless Steel 2.0 to 3.0

Nickel (Ni), %

7075 Aluminum 0
AISI 316 Stainless Steel 10 to 14

Nitrogen (N), %

7075 Aluminum 0
AISI 316 Stainless Steel 0 to 0.1

Phosphorus (P), %

7075 Aluminum 0
AISI 316 Stainless Steel 0 to 0.045

Silicon (Si), %

7075 Aluminum 0 to 0.4
AISI 316 Stainless Steel 0 to 1.0

Sulfur (S), %

7075 Aluminum 0
AISI 316 Stainless Steel 0 to 0.030

Titanium (Ti), %

7075 Aluminum 0 to 0.2
AISI 316 Stainless Steel 0

Zinc (Zn), %

7075 Aluminum 5.1 to 6.1
AISI 316 Stainless Steel 0

Zirconium (Zr), %

7075 Aluminum 0 to 0.25
AISI 316 Stainless Steel 0

Residuals, %

7075 Aluminum 0 to 0.15
AISI 316 Stainless Steel 0