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EN 1.4826 Stainless Steel vs. 772.0 Aluminum

EN 1.4826 stainless steel belongs to the iron alloys classification, while 772.0 aluminum belongs to the aluminum alloys. There are 29 material properties with values for both materials. Properties with values for just one material (3, 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 1.4826 stainless steel and the bottom bar is 772.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
69
Elongation at Break, % 9.1
6.3 to 8.4
Fatigue Strength, MPa 140
94 to 160
Poisson's Ratio 0.28
0.32
Shear Modulus, GPa 77
26
Tensile Strength: Ultimate (UTS), MPa 500
260 to 320
Tensile Strength: Yield (Proof), MPa 260
220 to 250

Thermal Properties

Latent Heat of Fusion, J/g 310
380
Maximum Temperature: Mechanical, °C 950
180
Melting Completion (Liquidus), °C 1400
630
Melting Onset (Solidus), °C 1360
580
Specific Heat Capacity, J/kg-K 490
870
Thermal Conductivity, W/m-K 14
150
Thermal Expansion, µm/m-K 16
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
35
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
110

Otherwise Unclassified Properties

Base Metal Price, % relative 17
9.5
Density, g/cm3 7.7
3.0
Embodied Carbon, kg CO2/kg material 3.3
8.0
Embodied Energy, MJ/kg 47
150
Embodied Water, L/kg 160
1140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 39
16 to 25
Resilience: Unit (Modulus of Resilience), kJ/m3 170
350 to 430
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
46
Strength to Weight: Axial, points 18
25 to 31
Strength to Weight: Bending, points 18
31 to 36
Thermal Diffusivity, mm2/s 3.7
58
Thermal Shock Resistance, points 11
11 to 14

Alloy Composition

Aluminum (Al), % 0
91.2 to 93.2
Carbon (C), % 0.3 to 0.5
0
Chromium (Cr), % 21 to 23
0.060 to 0.2
Copper (Cu), % 0
0 to 0.1
Iron (Fe), % 60.4 to 68.7
0 to 0.15
Magnesium (Mg), % 0
0.6 to 0.8
Manganese (Mn), % 0 to 2.0
0 to 0.1
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 9.0 to 11
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 1.0 to 2.5
0 to 0.15
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0
0.1 to 0.2
Zinc (Zn), % 0
6.0 to 7.0
Residuals, % 0
0 to 0.15