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772.0 Aluminum vs. EN 1.4600 Stainless Steel

772.0 aluminum belongs to the aluminum alloys classification, while EN 1.4600 stainless steel belongs to the iron 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 772.0 aluminum and the bottom bar is EN 1.4600 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
190
Elongation at Break, % 6.3 to 8.4
23
Fatigue Strength, MPa 94 to 160
290
Poisson's Ratio 0.32
0.28
Shear Modulus, GPa 26
76
Tensile Strength: Ultimate (UTS), MPa 260 to 320
580
Tensile Strength: Yield (Proof), MPa 220 to 250
430

Thermal Properties

Latent Heat of Fusion, J/g 380
270
Maximum Temperature: Mechanical, °C 180
730
Melting Completion (Liquidus), °C 630
1440
Melting Onset (Solidus), °C 580
1400
Specific Heat Capacity, J/kg-K 870
480
Thermal Conductivity, W/m-K 150
27
Thermal Expansion, µm/m-K 24
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 35
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 110
3.4

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
7.0
Density, g/cm3 3.0
7.7
Embodied Carbon, kg CO2/kg material 8.0
2.0
Embodied Energy, MJ/kg 150
28
Embodied Water, L/kg 1140
100

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 16 to 25
120
Resilience: Unit (Modulus of Resilience), kJ/m3 350 to 430
470
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 46
25
Strength to Weight: Axial, points 25 to 31
21
Strength to Weight: Bending, points 31 to 36
20
Thermal Diffusivity, mm2/s 58
7.3
Thermal Shock Resistance, points 11 to 14
21

Alloy Composition

Aluminum (Al), % 91.2 to 93.2
0
Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0.060 to 0.2
11 to 13
Copper (Cu), % 0 to 0.1
0
Iron (Fe), % 0 to 0.15
82 to 87.7
Magnesium (Mg), % 0.6 to 0.8
0
Manganese (Mn), % 0 to 0.1
1.0 to 2.5
Nickel (Ni), % 0
0.3 to 1.0
Nitrogen (N), % 0
0 to 0.025
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.15
0 to 1.0
Sulfur (S), % 0
0 to 0.015
Titanium (Ti), % 0.1 to 0.2
0 to 0.35
Zinc (Zn), % 6.0 to 7.0
0
Residuals, % 0 to 0.15
0