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Grade 15 Titanium vs. Nickel 625

Grade 15 titanium belongs to the titanium alloys classification, while nickel 625 belongs to the nickel 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 grade 15 titanium and the bottom bar is nickel 625.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
200
Elongation at Break, % 20
33 to 34
Fatigue Strength, MPa 290
240 to 320
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 41
79
Shear Strength, MPa 340
530 to 600
Tensile Strength: Ultimate (UTS), MPa 540
790 to 910
Tensile Strength: Yield (Proof), MPa 430
320 to 450

Thermal Properties

Latent Heat of Fusion, J/g 420
330
Maximum Temperature: Mechanical, °C 320
980
Melting Completion (Liquidus), °C 1660
1350
Melting Onset (Solidus), °C 1610
1290
Specific Heat Capacity, J/kg-K 540
440
Thermal Conductivity, W/m-K 21
11
Thermal Expansion, µm/m-K 8.7
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.4
1.3
Electrical Conductivity: Equal Weight (Specific), % IACS 6.7
1.4

Otherwise Unclassified Properties

Base Metal Price, % relative 37
80
Density, g/cm3 4.5
8.6
Embodied Carbon, kg CO2/kg material 32
14
Embodied Energy, MJ/kg 520
190
Embodied Water, L/kg 210
290

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 100
220 to 250
Resilience: Unit (Modulus of Resilience), kJ/m3 870
260 to 490
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 35
23
Strength to Weight: Axial, points 33
26 to 29
Strength to Weight: Bending, points 33
22 to 24
Thermal Diffusivity, mm2/s 8.4
2.9
Thermal Shock Resistance, points 41
22 to 25

Alloy Composition

Aluminum (Al), % 0
0 to 0.4
Carbon (C), % 0 to 0.080
0 to 0.1
Chromium (Cr), % 0
20 to 23
Cobalt (Co), % 0
0 to 1.0
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.3
0 to 5.0
Manganese (Mn), % 0
0 to 0.5
Molybdenum (Mo), % 0
8.0 to 10
Nickel (Ni), % 0.4 to 0.6
58 to 68.9
Niobium (Nb), % 0
3.2 to 4.2
Nitrogen (N), % 0 to 0.050
0
Oxygen (O), % 0 to 0.25
0
Phosphorus (P), % 0
0 to 0.015
Ruthenium (Ru), % 0.040 to 0.060
0
Silicon (Si), % 0
0 to 0.5
Sulfur (S), % 0
0 to 0.015
Titanium (Ti), % 98.2 to 99.56
0 to 0.4
Residuals, % 0 to 0.4
0