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Nickel 625 vs. Nickel 201

Both nickel 625 and nickel 201 are nickel alloys. They have 64% of their average alloy composition in common.

For each property being compared, the top bar is nickel 625 and the bottom bar is nickel 201.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
180
Elongation at Break, % 33 to 34
4.5 to 45
Fatigue Strength, MPa 240 to 320
42 to 210
Poisson's Ratio 0.29
0.31
Shear Modulus, GPa 79
70
Shear Strength, MPa 530 to 600
270 to 380
Tensile Strength: Ultimate (UTS), MPa 790 to 910
390 to 660
Tensile Strength: Yield (Proof), MPa 320 to 450
80 to 510

Thermal Properties

Curie Temperature, °C -200
360
Latent Heat of Fusion, J/g 330
290
Maximum Temperature: Mechanical, °C 980
900
Melting Completion (Liquidus), °C 1350
1450
Melting Onset (Solidus), °C 1290
1440
Specific Heat Capacity, J/kg-K 440
440
Thermal Conductivity, W/m-K 11
78
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.3
19
Electrical Conductivity: Equal Weight (Specific), % IACS 1.4
19

Otherwise Unclassified Properties

Base Metal Price, % relative 80
65
Density, g/cm3 8.6
8.9
Embodied Carbon, kg CO2/kg material 14
11
Embodied Energy, MJ/kg 190
150
Embodied Water, L/kg 290
230

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 220 to 250
25 to 130
Resilience: Unit (Modulus of Resilience), kJ/m3 260 to 490
17 to 720
Stiffness to Weight: Axial, points 13
11
Stiffness to Weight: Bending, points 23
21
Strength to Weight: Axial, points 26 to 29
12 to 20
Strength to Weight: Bending, points 22 to 24
13 to 19
Thermal Diffusivity, mm2/s 2.9
20
Thermal Shock Resistance, points 22 to 25
11 to 19

Alloy Composition

Aluminum (Al), % 0 to 0.4
0
Carbon (C), % 0 to 0.1
0 to 0.020
Chromium (Cr), % 20 to 23
0
Cobalt (Co), % 0 to 1.0
0
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 0 to 5.0
0 to 0.4
Manganese (Mn), % 0 to 0.5
0 to 0.35
Molybdenum (Mo), % 8.0 to 10
0
Nickel (Ni), % 58 to 68.9
99 to 100
Niobium (Nb), % 3.2 to 4.2
0
Phosphorus (P), % 0 to 0.015
0
Silicon (Si), % 0 to 0.5
0 to 0.35
Sulfur (S), % 0 to 0.015
0 to 0.010
Titanium (Ti), % 0 to 0.4
0

Comparable Variants