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Nickel 689 vs. Grade N7M Nickel

Both nickel 689 and grade N7M nickel are nickel alloys. They have 67% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is nickel 689 and the bottom bar is grade N7M nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
220
Elongation at Break, % 23
22
Fatigue Strength, MPa 420
190
Poisson's Ratio 0.29
0.31
Shear Modulus, GPa 80
85
Tensile Strength: Ultimate (UTS), MPa 1250
590
Tensile Strength: Yield (Proof), MPa 690
310

Thermal Properties

Latent Heat of Fusion, J/g 330
320
Maximum Temperature: Mechanical, °C 990
900
Melting Completion (Liquidus), °C 1440
1650
Melting Onset (Solidus), °C 1390
1590
Specific Heat Capacity, J/kg-K 450
390
Thermal Expansion, µm/m-K 12
9.9

Otherwise Unclassified Properties

Base Metal Price, % relative 70
75
Density, g/cm3 8.5
9.3
Embodied Carbon, kg CO2/kg material 11
16
Embodied Energy, MJ/kg 150
200
Embodied Water, L/kg 330
270

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 240
110
Resilience: Unit (Modulus of Resilience), kJ/m3 1170
220
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 23
22
Strength to Weight: Axial, points 41
18
Strength to Weight: Bending, points 30
17
Thermal Shock Resistance, points 35
19

Alloy Composition

Aluminum (Al), % 0.75 to 1.3
0
Boron (B), % 0.0030 to 0.010
0
Carbon (C), % 0.1 to 0.2
0 to 0.070
Chromium (Cr), % 18 to 20
0 to 1.0
Cobalt (Co), % 9.0 to 11
0
Iron (Fe), % 0 to 5.0
0 to 3.0
Manganese (Mn), % 0 to 0.5
0 to 1.0
Molybdenum (Mo), % 9.0 to 10.5
30 to 33
Nickel (Ni), % 48.3 to 60.9
60.9 to 70
Phosphorus (P), % 0 to 0.015
0 to 0.040
Silicon (Si), % 0 to 0.5
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.030
Titanium (Ti), % 2.3 to 2.8
0