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Nickel 685 vs. Monel R-405

Both nickel 685 and Monel R-405 are nickel alloys. They have 58% of their average alloy composition in common. There are 28 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 nickel 685 and the bottom bar is Monel R-405.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
160
Elongation at Break, % 17
9.1 to 39
Fatigue Strength, MPa 470
210 to 250
Poisson's Ratio 0.29
0.32
Shear Modulus, GPa 77
62
Shear Strength, MPa 770
350 to 370
Tensile Strength: Ultimate (UTS), MPa 1250
540 to 630
Tensile Strength: Yield (Proof), MPa 850
190 to 350

Thermal Properties

Latent Heat of Fusion, J/g 320
270
Maximum Temperature: Mechanical, °C 1000
900
Melting Completion (Liquidus), °C 1380
1350
Melting Onset (Solidus), °C 1330
1300
Specific Heat Capacity, J/kg-K 460
430
Thermal Conductivity, W/m-K 13
23
Thermal Expansion, µm/m-K 12
14

Otherwise Unclassified Properties

Base Metal Price, % relative 75
50
Density, g/cm3 8.4
8.9
Embodied Carbon, kg CO2/kg material 10
7.9
Embodied Energy, MJ/kg 140
110
Embodied Water, L/kg 340
250

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
49 to 170
Resilience: Unit (Modulus of Resilience), kJ/m3 1820
120 to 370
Stiffness to Weight: Axial, points 13
10
Stiffness to Weight: Bending, points 23
21
Strength to Weight: Axial, points 42
17 to 20
Strength to Weight: Bending, points 31
17 to 18
Thermal Diffusivity, mm2/s 3.3
5.9
Thermal Shock Resistance, points 37
17 to 20

Alloy Composition

Aluminum (Al), % 1.2 to 1.6
0
Boron (B), % 0.0030 to 0.010
0
Carbon (C), % 0.030 to 0.1
0 to 0.3
Chromium (Cr), % 18 to 21
0
Cobalt (Co), % 12 to 15
0
Copper (Cu), % 0 to 0.5
28 to 34
Iron (Fe), % 0 to 2.0
0 to 2.5
Manganese (Mn), % 0 to 1.0
0 to 2.0
Molybdenum (Mo), % 3.5 to 5.0
0
Nickel (Ni), % 49.6 to 62.5
63 to 72
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0 to 0.75
0 to 0.5
Sulfur (S), % 0 to 0.030
0.025 to 0.060
Titanium (Ti), % 2.8 to 3.3
0
Zinc (Zn), % 0.020 to 0.12
0