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Nickel 625 vs. Grade 28 Titanium

Nickel 625 belongs to the nickel alloys classification, while grade 28 titanium belongs to the titanium alloys. There are 30 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 nickel 625 and the bottom bar is grade 28 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
110
Elongation at Break, % 33 to 34
11 to 17
Fatigue Strength, MPa 240 to 320
330 to 480
Poisson's Ratio 0.29
0.32
Shear Modulus, GPa 79
40
Shear Strength, MPa 530 to 600
420 to 590
Tensile Strength: Ultimate (UTS), MPa 790 to 910
690 to 980
Tensile Strength: Yield (Proof), MPa 320 to 450
540 to 810

Thermal Properties

Latent Heat of Fusion, J/g 330
410
Maximum Temperature: Mechanical, °C 980
330
Melting Completion (Liquidus), °C 1350
1640
Melting Onset (Solidus), °C 1290
1590
Specific Heat Capacity, J/kg-K 440
550
Thermal Conductivity, W/m-K 11
8.3
Thermal Expansion, µm/m-K 13
9.9

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.3
1.3
Electrical Conductivity: Equal Weight (Specific), % IACS 1.4
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 80
36
Density, g/cm3 8.6
4.5
Embodied Carbon, kg CO2/kg material 14
37
Embodied Energy, MJ/kg 190
600
Embodied Water, L/kg 290
370

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 220 to 250
87 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 260 to 490
1370 to 3100
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 23
35
Strength to Weight: Axial, points 26 to 29
43 to 61
Strength to Weight: Bending, points 22 to 24
39 to 49
Thermal Diffusivity, mm2/s 2.9
3.4
Thermal Shock Resistance, points 22 to 25
47 to 66

Alloy Composition

Aluminum (Al), % 0 to 0.4
2.5 to 3.5
Carbon (C), % 0 to 0.1
0 to 0.080
Chromium (Cr), % 20 to 23
0
Cobalt (Co), % 0 to 1.0
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 0 to 5.0
0 to 0.25
Manganese (Mn), % 0 to 0.5
0
Molybdenum (Mo), % 8.0 to 10
0
Nickel (Ni), % 58 to 68.9
0
Niobium (Nb), % 3.2 to 4.2
0
Nitrogen (N), % 0
0 to 0.030
Oxygen (O), % 0
0 to 0.15
Phosphorus (P), % 0 to 0.015
0
Ruthenium (Ru), % 0
0.080 to 0.14
Silicon (Si), % 0 to 0.5
0
Sulfur (S), % 0 to 0.015
0
Titanium (Ti), % 0 to 0.4
92.4 to 95.4
Vanadium (V), % 0
2.0 to 3.0
Residuals, % 0
0 to 0.4

Comparable Variants