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Monel R-405 vs. S44635 Stainless Steel

Monel R-405 belongs to the nickel alloys classification, while S44635 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 S44635 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 160
210
Elongation at Break, % 9.1 to 39
23
Fatigue Strength, MPa 210 to 250
390
Poisson's Ratio 0.32
0.27
Shear Modulus, GPa 62
81
Shear Strength, MPa 350 to 370
450
Tensile Strength: Ultimate (UTS), MPa 540 to 630
710
Tensile Strength: Yield (Proof), MPa 190 to 350
580

Thermal Properties

Latent Heat of Fusion, J/g 270
300
Maximum Temperature: Mechanical, °C 900
1100
Melting Completion (Liquidus), °C 1350
1460
Melting Onset (Solidus), °C 1300
1420
Specific Heat Capacity, J/kg-K 430
470
Thermal Conductivity, W/m-K 23
16
Thermal Expansion, µm/m-K 14
11

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
22
Density, g/cm3 8.9
7.8
Embodied Carbon, kg CO2/kg material 7.9
4.4
Embodied Energy, MJ/kg 110
62
Embodied Water, L/kg 250
170

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 49 to 170
150
Resilience: Unit (Modulus of Resilience), kJ/m3 120 to 370
810
Stiffness to Weight: Axial, points 10
15
Stiffness to Weight: Bending, points 21
25
Strength to Weight: Axial, points 17 to 20
25
Strength to Weight: Bending, points 17 to 18
23
Thermal Diffusivity, mm2/s 5.9
4.4
Thermal Shock Resistance, points 17 to 20
23

Alloy Composition

Carbon (C), % 0 to 0.3
0 to 0.025
Chromium (Cr), % 0
24.5 to 26
Copper (Cu), % 28 to 34
0
Iron (Fe), % 0 to 2.5
61.5 to 68.5
Manganese (Mn), % 0 to 2.0
0 to 1.0
Molybdenum (Mo), % 0
3.5 to 4.5
Nickel (Ni), % 63 to 72
3.5 to 4.5
Niobium (Nb), % 0
0.2 to 0.8
Nitrogen (N), % 0
0 to 0.035
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 0.030
Titanium (Ti), % 0
0.2 to 0.8