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Nickel 625 vs. N07750 Nickel

Both nickel 625 and N07750 nickel are nickel alloys. They have 84% of their average alloy composition in common.

For each property being compared, the top bar is nickel 625 and the bottom bar is N07750 nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 33 to 34
25
Fatigue Strength, MPa 240 to 320
520
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 79
73
Shear Strength, MPa 530 to 600
770
Tensile Strength: Ultimate (UTS), MPa 790 to 910
1200
Tensile Strength: Yield (Proof), MPa 320 to 450
820

Thermal Properties

Curie Temperature, °C -200
-130
Latent Heat of Fusion, J/g 330
310
Maximum Temperature: Mechanical, °C 980
960
Melting Completion (Liquidus), °C 1350
1430
Melting Onset (Solidus), °C 1290
1400
Specific Heat Capacity, J/kg-K 440
460
Thermal Conductivity, W/m-K 11
13
Thermal Expansion, µm/m-K 13
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.3
1.4
Electrical Conductivity: Equal Weight (Specific), % IACS 1.4
1.5

Otherwise Unclassified Properties

Base Metal Price, % relative 80
60
Density, g/cm3 8.6
8.4
Embodied Carbon, kg CO2/kg material 14
10
Embodied Energy, MJ/kg 190
150
Embodied Water, L/kg 290
260

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 220 to 250
270
Resilience: Unit (Modulus of Resilience), kJ/m3 260 to 490
1770
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 23
23
Strength to Weight: Axial, points 26 to 29
40
Strength to Weight: Bending, points 22 to 24
30
Thermal Diffusivity, mm2/s 2.9
3.3
Thermal Shock Resistance, points 22 to 25
36

Alloy Composition

Aluminum (Al), % 0 to 0.4
0.4 to 1.0
Carbon (C), % 0 to 0.1
0 to 0.080
Chromium (Cr), % 20 to 23
14 to 17
Cobalt (Co), % 0 to 1.0
0 to 1.0
Copper (Cu), % 0
0 to 0.5
Iron (Fe), % 0 to 5.0
5.0 to 9.0
Manganese (Mn), % 0 to 0.5
0 to 1.0
Molybdenum (Mo), % 8.0 to 10
0
Nickel (Ni), % 58 to 68.9
70 to 77.7
Niobium (Nb), % 3.2 to 4.2
0.7 to 1.2
Phosphorus (P), % 0 to 0.015
0
Silicon (Si), % 0 to 0.5
0 to 0.5
Sulfur (S), % 0 to 0.015
0 to 0.010
Titanium (Ti), % 0 to 0.4
2.3 to 2.8