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7475 Aluminum vs. AISI 310 Stainless Steel

7475 aluminum belongs to the aluminum alloys classification, while AISI 310 stainless steel belongs to the iron alloys. There are 30 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 7475 aluminum and the bottom bar is AISI 310 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
200
Elongation at Break, % 10 to 12
34 to 45
Fatigue Strength, MPa 190 to 210
240 to 280
Poisson's Ratio 0.32
0.27
Shear Modulus, GPa 26
78
Shear Strength, MPa 320 to 350
420 to 470
Tensile Strength: Ultimate (UTS), MPa 530 to 590
600 to 710
Tensile Strength: Yield (Proof), MPa 440 to 520
260 to 350

Thermal Properties

Latent Heat of Fusion, J/g 380
310
Maximum Temperature: Mechanical, °C 180
1040
Melting Completion (Liquidus), °C 640
1450
Melting Onset (Solidus), °C 480
1400
Specific Heat Capacity, J/kg-K 870
480
Thermal Conductivity, W/m-K 140 to 160
15
Thermal Expansion, µm/m-K 23
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 33 to 42
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 98 to 120
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 10
25
Density, g/cm3 3.0
7.8
Embodied Carbon, kg CO2/kg material 8.2
4.3
Embodied Energy, MJ/kg 150
61
Embodied Water, L/kg 1130
190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 53 to 68
200 to 220
Resilience: Unit (Modulus of Resilience), kJ/m3 1390 to 1920
170 to 310
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 46
25
Strength to Weight: Axial, points 49 to 55
21 to 25
Strength to Weight: Bending, points 48 to 52
20 to 22
Thermal Diffusivity, mm2/s 53 to 63
3.9
Thermal Shock Resistance, points 23 to 26
14 to 17

Alloy Composition

Aluminum (Al), % 88.6 to 91.6
0
Carbon (C), % 0
0 to 0.25
Chromium (Cr), % 0.18 to 0.25
24 to 26
Copper (Cu), % 1.2 to 1.9
0
Iron (Fe), % 0 to 0.12
48.2 to 57
Magnesium (Mg), % 1.9 to 2.6
0
Manganese (Mn), % 0 to 0.060
0 to 2.0
Nickel (Ni), % 0
19 to 22
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 0 to 0.1
0 to 1.5
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 0 to 0.060
0
Zinc (Zn), % 5.1 to 6.2
0
Residuals, % 0 to 0.15
0