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771.0 Aluminum vs. EN 1.4710 Stainless Steel

771.0 aluminum belongs to the aluminum alloys classification, while EN 1.4710 stainless steel belongs to the iron alloys. There are 22 material properties with values for both materials. Properties with values for just one material (11, 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 771.0 aluminum and the bottom bar is EN 1.4710 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 85 to 120
260
Elastic (Young's, Tensile) Modulus, GPa 70
190
Elongation at Break, % 1.7 to 6.5
20
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 26
74

Thermal Properties

Latent Heat of Fusion, J/g 380
290
Maximum Temperature: Mechanical, °C 180
750
Melting Completion (Liquidus), °C 630
1430
Melting Onset (Solidus), °C 620
1390
Specific Heat Capacity, J/kg-K 870
480
Thermal Conductivity, W/m-K 140 to 150
24
Thermal Expansion, µm/m-K 24
9.9

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 27
6.4
Electrical Conductivity: Equal Weight (Specific), % IACS 82
7.5

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
5.0
Density, g/cm3 3.0
7.7
Embodied Carbon, kg CO2/kg material 8.0
1.8
Embodied Energy, MJ/kg 150
24
Embodied Water, L/kg 1130
76

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 46
25
Thermal Diffusivity, mm2/s 54 to 58
6.5

Alloy Composition

Aluminum (Al), % 90.5 to 92.5
0
Carbon (C), % 0
0.2 to 0.35
Chromium (Cr), % 0.060 to 0.2
6.0 to 8.0
Copper (Cu), % 0 to 0.1
0
Iron (Fe), % 0 to 0.15
87.4 to 92.3
Magnesium (Mg), % 0.8 to 1.0
0
Manganese (Mn), % 0 to 0.1
0.5 to 1.0
Molybdenum (Mo), % 0
0 to 0.15
Nickel (Ni), % 0
0 to 0.5
Phosphorus (P), % 0
0 to 0.035
Silicon (Si), % 0 to 0.15
1.0 to 2.5
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 0.1 to 0.2
0
Zinc (Zn), % 6.5 to 7.5
0
Residuals, % 0 to 0.15
0