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Grade CW6M Nickel vs. Nickel 725

Both grade CW6M nickel and nickel 725 are nickel alloys. They have 86% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is grade CW6M nickel and the bottom bar is nickel 725.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
200
Elongation at Break, % 29
34
Fatigue Strength, MPa 210
260
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 84
78
Tensile Strength: Ultimate (UTS), MPa 560
860
Tensile Strength: Yield (Proof), MPa 310
350

Thermal Properties

Latent Heat of Fusion, J/g 330
320
Maximum Temperature: Mechanical, °C 970
980
Melting Completion (Liquidus), °C 1530
1340
Melting Onset (Solidus), °C 1470
1270
Specific Heat Capacity, J/kg-K 430
440
Thermal Expansion, µm/m-K 12
13

Otherwise Unclassified Properties

Base Metal Price, % relative 65
75
Density, g/cm3 8.8
8.5
Embodied Carbon, kg CO2/kg material 13
13
Embodied Energy, MJ/kg 170
190
Embodied Water, L/kg 300
270

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140
240
Resilience: Unit (Modulus of Resilience), kJ/m3 220
300
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 23
23
Strength to Weight: Axial, points 18
28
Strength to Weight: Bending, points 17
24
Thermal Shock Resistance, points 16
23

Alloy Composition

Aluminum (Al), % 0
0 to 0.35
Carbon (C), % 0 to 0.070
0 to 0.030
Chromium (Cr), % 17 to 20
19 to 22.5
Iron (Fe), % 0 to 3.0
2.3 to 15.3
Manganese (Mn), % 0 to 1.0
0 to 0.35
Molybdenum (Mo), % 17 to 20
7.0 to 9.5
Nickel (Ni), % 54.9 to 66
55 to 59
Niobium (Nb), % 0
2.8 to 4.0
Phosphorus (P), % 0 to 0.040
0 to 0.015
Silicon (Si), % 0 to 1.0
0 to 0.2
Sulfur (S), % 0 to 0.030
0 to 0.010
Titanium (Ti), % 0
1.0 to 1.7