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Nickel 690 vs. Nickel 725

Both nickel 690 and nickel 725 are nickel alloys. They have 87% of their average alloy composition in common. There are 28 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 nickel 690 and the bottom bar is nickel 725.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 3.4 to 34
34
Fatigue Strength, MPa 180 to 300
260
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 79
78
Shear Strength, MPa 420 to 570
580
Tensile Strength: Ultimate (UTS), MPa 640 to 990
860
Tensile Strength: Yield (Proof), MPa 250 to 760
350

Thermal Properties

Latent Heat of Fusion, J/g 320
320
Maximum Temperature: Mechanical, °C 1010
980
Melting Completion (Liquidus), °C 1380
1340
Melting Onset (Solidus), °C 1340
1270
Specific Heat Capacity, J/kg-K 470
440
Thermal Expansion, µm/m-K 14
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.5
1.5
Electrical Conductivity: Equal Weight (Specific), % IACS 1.6
1.6

Otherwise Unclassified Properties

Base Metal Price, % relative 50
75
Density, g/cm3 8.3
8.5
Embodied Carbon, kg CO2/kg material 8.2
13
Embodied Energy, MJ/kg 120
190
Embodied Water, L/kg 290
270

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 31 to 170
240
Resilience: Unit (Modulus of Resilience), kJ/m3 160 to 1440
300
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
23
Strength to Weight: Axial, points 21 to 33
28
Strength to Weight: Bending, points 20 to 27
24
Thermal Shock Resistance, points 16 to 25
23

Alloy Composition

Aluminum (Al), % 0
0 to 0.35
Carbon (C), % 0 to 0.050
0 to 0.030
Chromium (Cr), % 27 to 31
19 to 22.5
Copper (Cu), % 0 to 0.5
0
Iron (Fe), % 7.0 to 11
2.3 to 15.3
Manganese (Mn), % 0 to 0.5
0 to 0.35
Molybdenum (Mo), % 0
7.0 to 9.5
Nickel (Ni), % 58 to 66
55 to 59
Niobium (Nb), % 0
2.8 to 4.0
Phosphorus (P), % 0
0 to 0.015
Silicon (Si), % 0 to 0.5
0 to 0.2
Sulfur (S), % 0 to 0.015
0 to 0.010
Titanium (Ti), % 0
1.0 to 1.7