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Grade N7M Nickel vs. Grade CX2M Nickel

Both grade N7M nickel and grade CX2M nickel are nickel alloys. Both are furnished in the heat treated (HT) condition. They have 77% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is grade N7M nickel and the bottom bar is grade CX2M nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
220
Elongation at Break, % 22
45
Fatigue Strength, MPa 190
260
Poisson's Ratio 0.31
0.29
Shear Modulus, GPa 85
84
Tensile Strength: Ultimate (UTS), MPa 590
550
Tensile Strength: Yield (Proof), MPa 310
310

Thermal Properties

Latent Heat of Fusion, J/g 320
330
Maximum Temperature: Mechanical, °C 900
990
Melting Completion (Liquidus), °C 1650
1500
Melting Onset (Solidus), °C 1590
1450
Specific Heat Capacity, J/kg-K 390
430
Thermal Expansion, µm/m-K 9.9
12

Otherwise Unclassified Properties

Base Metal Price, % relative 75
65
Density, g/cm3 9.3
8.7
Embodied Carbon, kg CO2/kg material 16
12
Embodied Energy, MJ/kg 200
160
Embodied Water, L/kg 270
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
210
Resilience: Unit (Modulus of Resilience), kJ/m3 220
220
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 22
23
Strength to Weight: Axial, points 18
18
Strength to Weight: Bending, points 17
17
Thermal Shock Resistance, points 19
15

Alloy Composition

Carbon (C), % 0 to 0.070
0 to 0.020
Chromium (Cr), % 0 to 1.0
22 to 24
Iron (Fe), % 0 to 3.0
0 to 1.5
Manganese (Mn), % 0 to 1.0
0 to 1.0
Molybdenum (Mo), % 30 to 33
15 to 16.5
Nickel (Ni), % 60.9 to 70
56.4 to 63
Phosphorus (P), % 0 to 0.040
0 to 0.020
Silicon (Si), % 0 to 1.0
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.020