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Grade CX2MW Nickel vs. Nickel 686

Both grade CX2MW nickel and nickel 686 are nickel alloys. They have a very high 97% of their average alloy composition in common. There are 29 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is grade CX2MW nickel and the bottom bar is nickel 686.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
220
Elongation at Break, % 34
51
Fatigue Strength, MPa 260
410
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 84
77
Tensile Strength: Ultimate (UTS), MPa 620
780
Tensile Strength: Yield (Proof), MPa 350
350

Thermal Properties

Latent Heat of Fusion, J/g 330
320
Maximum Temperature: Mechanical, °C 980
980
Melting Completion (Liquidus), °C 1550
1380
Melting Onset (Solidus), °C 1490
1340
Specific Heat Capacity, J/kg-K 430
420
Thermal Conductivity, W/m-K 10
9.8
Thermal Expansion, µm/m-K 12
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.5
1.4
Electrical Conductivity: Equal Weight (Specific), % IACS 1.5
1.4

Otherwise Unclassified Properties

Base Metal Price, % relative 65
70
Density, g/cm3 8.9
9.0
Embodied Carbon, kg CO2/kg material 12
12
Embodied Energy, MJ/kg 170
170
Embodied Water, L/kg 290
300

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 180
320
Resilience: Unit (Modulus of Resilience), kJ/m3 290
280
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 23
22
Strength to Weight: Axial, points 19
24
Strength to Weight: Bending, points 18
21
Thermal Diffusivity, mm2/s 2.7
2.6
Thermal Shock Resistance, points 17
21

Alloy Composition

Carbon (C), % 0 to 0.020
0 to 0.010
Chromium (Cr), % 20 to 22.5
19 to 23
Iron (Fe), % 2.0 to 6.0
0 to 5.0
Manganese (Mn), % 0 to 1.0
0 to 0.75
Molybdenum (Mo), % 12.5 to 14.5
15 to 17
Nickel (Ni), % 51.3 to 63
49.5 to 63
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0 to 0.8
0 to 0.080
Sulfur (S), % 0 to 0.025
0 to 0.020
Titanium (Ti), % 0
0.020 to 0.25
Tungsten (W), % 2.5 to 3.5
3.0 to 4.4
Vanadium (V), % 0 to 0.35
0