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850.0 Aluminum vs. EN 1.4659 Stainless Steel

850.0 aluminum belongs to the aluminum alloys classification, while EN 1.4659 stainless steel belongs to the iron alloys. There are 31 material properties with values for both materials. Properties with values for just one material (4, 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 850.0 aluminum and the bottom bar is EN 1.4659 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 45
260
Elastic (Young's, Tensile) Modulus, GPa 69
210
Elongation at Break, % 7.9
49
Fatigue Strength, MPa 59
460
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 26
81
Shear Strength, MPa 100
640
Tensile Strength: Ultimate (UTS), MPa 140
900
Tensile Strength: Yield (Proof), MPa 76
480

Thermal Properties

Latent Heat of Fusion, J/g 380
300
Maximum Temperature: Mechanical, °C 190
1100
Melting Completion (Liquidus), °C 650
1480
Melting Onset (Solidus), °C 370
1430
Specific Heat Capacity, J/kg-K 850
460
Thermal Conductivity, W/m-K 180
12
Thermal Expansion, µm/m-K 23
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 47
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 140
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 14
37
Density, g/cm3 3.1
8.2
Embodied Carbon, kg CO2/kg material 8.5
6.5
Embodied Energy, MJ/kg 160
89
Embodied Water, L/kg 1160
220

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 9.1
370
Resilience: Unit (Modulus of Resilience), kJ/m3 42
550
Stiffness to Weight: Axial, points 12
14
Stiffness to Weight: Bending, points 44
24
Strength to Weight: Axial, points 12
31
Strength to Weight: Bending, points 19
25
Thermal Diffusivity, mm2/s 69
3.2
Thermal Shock Resistance, points 6.1
19

Alloy Composition

Aluminum (Al), % 88.3 to 93.1
0
Carbon (C), % 0
0 to 0.020
Chromium (Cr), % 0
23 to 25
Copper (Cu), % 0.7 to 1.3
1.0 to 2.0
Iron (Fe), % 0 to 0.7
35.7 to 45.7
Magnesium (Mg), % 0 to 0.1
0
Manganese (Mn), % 0 to 0.1
2.0 to 4.0
Molybdenum (Mo), % 0
5.5 to 6.5
Nickel (Ni), % 0.7 to 1.3
21 to 23
Nitrogen (N), % 0
0.35 to 0.5
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0 to 0.7
0 to 0.7
Sulfur (S), % 0
0 to 0.010
Tin (Sn), % 5.5 to 7.0
0
Titanium (Ti), % 0 to 0.2
0
Tungsten (W), % 0
1.5 to 2.5
Residuals, % 0 to 0.3
0