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Monel R-405 vs. S66286 Stainless Steel

Monel R-405 belongs to the nickel alloys classification, while S66286 stainless steel belongs to the iron alloys. They have a modest 28% of their average alloy composition in common, which, by itself, doesn't mean much. There are 30 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is Monel R-405 and the bottom bar is S66286 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 160
190
Elongation at Break, % 9.1 to 39
17 to 40
Fatigue Strength, MPa 210 to 250
240 to 410
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 62
75
Shear Strength, MPa 350 to 370
420 to 630
Tensile Strength: Ultimate (UTS), MPa 540 to 630
620 to 1020
Tensile Strength: Yield (Proof), MPa 190 to 350
280 to 670

Thermal Properties

Latent Heat of Fusion, J/g 270
300
Maximum Temperature: Mechanical, °C 900
920
Melting Completion (Liquidus), °C 1350
1430
Melting Onset (Solidus), °C 1300
1370
Specific Heat Capacity, J/kg-K 430
470
Thermal Conductivity, W/m-K 23
15
Thermal Expansion, µm/m-K 14
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.4
1.9
Electrical Conductivity: Equal Weight (Specific), % IACS 3.4
2.2

Otherwise Unclassified Properties

Base Metal Price, % relative 50
26
Density, g/cm3 8.9
7.9
Embodied Carbon, kg CO2/kg material 7.9
6.0
Embodied Energy, MJ/kg 110
87
Embodied Water, L/kg 250
170

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 49 to 170
150 to 200
Resilience: Unit (Modulus of Resilience), kJ/m3 120 to 370
190 to 1150
Stiffness to Weight: Axial, points 10
14
Stiffness to Weight: Bending, points 21
24
Strength to Weight: Axial, points 17 to 20
22 to 36
Strength to Weight: Bending, points 17 to 18
20 to 28
Thermal Diffusivity, mm2/s 5.9
4.0
Thermal Shock Resistance, points 17 to 20
13 to 22

Alloy Composition

Aluminum (Al), % 0
0 to 0.35
Boron (B), % 0
0.0010 to 0.010
Carbon (C), % 0 to 0.3
0 to 0.080
Chromium (Cr), % 0
13.5 to 16
Copper (Cu), % 28 to 34
0
Iron (Fe), % 0 to 2.5
49.1 to 59.5
Manganese (Mn), % 0 to 2.0
0 to 2.0
Molybdenum (Mo), % 0
1.0 to 1.5
Nickel (Ni), % 63 to 72
24 to 27
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.5
0 to 1.0
Sulfur (S), % 0.025 to 0.060
0 to 0.030
Titanium (Ti), % 0
1.9 to 2.4
Vanadium (V), % 0
0.1 to 0.5

Comparable Variants