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Monel R-405 vs. S82122 Stainless Steel

Monel R-405 belongs to the nickel alloys classification, while S82122 stainless steel belongs to the iron alloys. There are 30 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is Monel R-405 and the bottom bar is S82122 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 160
200
Elongation at Break, % 9.1 to 39
34
Fatigue Strength, MPa 210 to 250
360
Poisson's Ratio 0.32
0.28
Shear Modulus, GPa 62
78
Shear Strength, MPa 350 to 370
460
Tensile Strength: Ultimate (UTS), MPa 540 to 630
680
Tensile Strength: Yield (Proof), MPa 190 to 350
450

Thermal Properties

Latent Heat of Fusion, J/g 270
290
Maximum Temperature: Mechanical, °C 900
990
Melting Completion (Liquidus), °C 1350
1420
Melting Onset (Solidus), °C 1300
1380
Specific Heat Capacity, J/kg-K 430
480
Thermal Conductivity, W/m-K 23
15
Thermal Expansion, µm/m-K 14
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.4
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 3.4
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 50
12
Density, g/cm3 8.9
7.7
Embodied Carbon, kg CO2/kg material 7.9
2.6
Embodied Energy, MJ/kg 110
37
Embodied Water, L/kg 250
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 49 to 170
210
Resilience: Unit (Modulus of Resilience), kJ/m3 120 to 370
510
Stiffness to Weight: Axial, points 10
14
Stiffness to Weight: Bending, points 21
25
Strength to Weight: Axial, points 17 to 20
25
Strength to Weight: Bending, points 17 to 18
22
Thermal Diffusivity, mm2/s 5.9
4.0
Thermal Shock Resistance, points 17 to 20
19

Alloy Composition

Carbon (C), % 0 to 0.3
0 to 0.030
Chromium (Cr), % 0
20.5 to 21.5
Copper (Cu), % 28 to 34
0.5 to 1.5
Iron (Fe), % 0 to 2.5
68.9 to 75.4
Manganese (Mn), % 0 to 2.0
2.0 to 4.0
Molybdenum (Mo), % 0
0 to 0.6
Nickel (Ni), % 63 to 72
1.5 to 2.5
Nitrogen (N), % 0
0.15 to 0.2
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.5
0 to 0.75
Sulfur (S), % 0.025 to 0.060
0 to 0.020