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Nickel 684 vs. Grade CW6MC Nickel

Both nickel 684 and grade CW6MC nickel are nickel alloys. They have 78% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is nickel 684 and the bottom bar is grade CW6MC nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 11
28
Fatigue Strength, MPa 390
210
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 76
79
Tensile Strength: Ultimate (UTS), MPa 1190
540
Tensile Strength: Yield (Proof), MPa 800
310

Thermal Properties

Latent Heat of Fusion, J/g 320
330
Maximum Temperature: Mechanical, °C 1000
980
Melting Completion (Liquidus), °C 1370
1480
Melting Onset (Solidus), °C 1320
1430
Specific Heat Capacity, J/kg-K 470
440
Thermal Expansion, µm/m-K 13
12

Otherwise Unclassified Properties

Base Metal Price, % relative 75
80
Density, g/cm3 8.3
8.6
Embodied Carbon, kg CO2/kg material 10
14
Embodied Energy, MJ/kg 140
200
Embodied Water, L/kg 360
290

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
130
Resilience: Unit (Modulus of Resilience), kJ/m3 1610
240
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 23
23
Strength to Weight: Axial, points 40
18
Strength to Weight: Bending, points 30
17
Thermal Shock Resistance, points 34
15

Alloy Composition

Aluminum (Al), % 2.5 to 3.3
0
Boron (B), % 0.0030 to 0.010
0
Carbon (C), % 0 to 0.15
0 to 0.060
Chromium (Cr), % 15 to 20
20 to 23
Cobalt (Co), % 13 to 20
0
Copper (Cu), % 0 to 0.15
0
Iron (Fe), % 0 to 4.0
0 to 5.0
Manganese (Mn), % 0 to 0.75
0 to 1.0
Molybdenum (Mo), % 3.0 to 5.0
8.0 to 10
Nickel (Ni), % 42.7 to 64
55.4 to 68.9
Niobium (Nb), % 0
3.2 to 4.5
Phosphorus (P), % 0 to 0.015
0 to 0.015
Silicon (Si), % 0 to 0.75
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.030
Titanium (Ti), % 2.5 to 3.3
0