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712.0 Aluminum vs. EN 1.4587 Stainless Steel

712.0 aluminum belongs to the aluminum alloys classification, while EN 1.4587 stainless steel belongs to the iron alloys. There are 30 material properties with values for both materials. Properties with values for just one material (5, 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 712.0 aluminum and the bottom bar is EN 1.4587 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 75 to 90
160
Elastic (Young's, Tensile) Modulus, GPa 70
200
Elongation at Break, % 4.5 to 4.7
34
Fatigue Strength, MPa 140 to 180
200
Poisson's Ratio 0.32
0.28
Shear Modulus, GPa 27
80
Tensile Strength: Ultimate (UTS), MPa 250 to 260
540
Tensile Strength: Yield (Proof), MPa 180 to 200
250

Thermal Properties

Latent Heat of Fusion, J/g 380
310
Maximum Temperature: Mechanical, °C 190
1100
Melting Completion (Liquidus), °C 640
1420
Melting Onset (Solidus), °C 610
1370
Specific Heat Capacity, J/kg-K 870
470
Thermal Conductivity, W/m-K 160
17
Thermal Expansion, µm/m-K 24
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 40
1.8
Electrical Conductivity: Equal Weight (Specific), % IACS 120
2.0

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
36
Density, g/cm3 3.0
8.1
Embodied Carbon, kg CO2/kg material 8.0
6.3
Embodied Energy, MJ/kg 150
87
Embodied Water, L/kg 1140
230

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 11
150
Resilience: Unit (Modulus of Resilience), kJ/m3 240 to 270
150
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 46
24
Strength to Weight: Axial, points 24 to 25
18
Strength to Weight: Bending, points 30 to 31
18
Thermal Diffusivity, mm2/s 62
4.5
Thermal Shock Resistance, points 11
13

Alloy Composition

Aluminum (Al), % 90.7 to 94
0
Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0.4 to 0.6
24 to 26
Copper (Cu), % 0 to 0.25
2.0 to 3.0
Iron (Fe), % 0 to 0.5
32.7 to 41.9
Magnesium (Mg), % 0.5 to 0.65
0
Manganese (Mn), % 0 to 0.1
0 to 2.0
Molybdenum (Mo), % 0
4.0 to 5.0
Nickel (Ni), % 0
28 to 30
Nitrogen (N), % 0
0.15 to 0.25
Phosphorus (P), % 0
0 to 0.035
Silicon (Si), % 0 to 0.3
0 to 1.0
Sulfur (S), % 0
0 to 0.025
Titanium (Ti), % 0.15 to 0.25
0
Zinc (Zn), % 5.0 to 6.5
0
Residuals, % 0 to 0.2
0