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EN 1.4517 Stainless Steel vs. 712.0 Aluminum

EN 1.4517 stainless steel belongs to the iron alloys classification, while 712.0 aluminum belongs to the aluminum alloys. There are 29 material properties with values for both materials. Properties with values for just one material (6, 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 EN 1.4517 stainless steel and the bottom bar is 712.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
70
Elongation at Break, % 25
4.5 to 4.7
Fatigue Strength, MPa 380
140 to 180
Poisson's Ratio 0.27
0.32
Shear Modulus, GPa 79
27
Tensile Strength: Ultimate (UTS), MPa 730
250 to 260
Tensile Strength: Yield (Proof), MPa 550
180 to 200

Thermal Properties

Latent Heat of Fusion, J/g 300
380
Maximum Temperature: Mechanical, °C 1100
190
Melting Completion (Liquidus), °C 1430
640
Melting Onset (Solidus), °C 1390
610
Specific Heat Capacity, J/kg-K 480
870
Thermal Conductivity, W/m-K 17
160
Thermal Expansion, µm/m-K 13
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
40
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
120

Otherwise Unclassified Properties

Base Metal Price, % relative 20
9.5
Density, g/cm3 7.8
3.0
Embodied Carbon, kg CO2/kg material 3.8
8.0
Embodied Energy, MJ/kg 53
150
Embodied Water, L/kg 180
1140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 170
11
Resilience: Unit (Modulus of Resilience), kJ/m3 740
240 to 270
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
46
Strength to Weight: Axial, points 26
24 to 25
Strength to Weight: Bending, points 23
30 to 31
Thermal Diffusivity, mm2/s 4.6
62
Thermal Shock Resistance, points 20
11

Alloy Composition

Aluminum (Al), % 0
90.7 to 94
Carbon (C), % 0 to 0.030
0
Chromium (Cr), % 24.5 to 26.5
0.4 to 0.6
Copper (Cu), % 2.8 to 3.5
0 to 0.25
Iron (Fe), % 56.7 to 65.1
0 to 0.5
Magnesium (Mg), % 0
0.5 to 0.65
Manganese (Mn), % 0 to 1.5
0 to 0.1
Molybdenum (Mo), % 2.5 to 3.5
0
Nickel (Ni), % 5.0 to 7.0
0
Nitrogen (N), % 0.12 to 0.22
0
Phosphorus (P), % 0 to 0.035
0
Silicon (Si), % 0 to 1.0
0 to 0.3
Sulfur (S), % 0 to 0.025
0
Titanium (Ti), % 0
0.15 to 0.25
Zinc (Zn), % 0
5.0 to 6.5
Residuals, % 0
0 to 0.2