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Grade 29 Titanium vs. Nickel 825

Grade 29 titanium belongs to the titanium alloys classification, while nickel 825 belongs to the nickel alloys. There are 30 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is grade 29 titanium and the bottom bar is nickel 825.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
200
Elongation at Break, % 6.8 to 11
34
Fatigue Strength, MPa 460 to 510
190
Poisson's Ratio 0.32
0.28
Shear Modulus, GPa 40
78
Shear Strength, MPa 550 to 560
430
Tensile Strength: Ultimate (UTS), MPa 930 to 940
650
Tensile Strength: Yield (Proof), MPa 850 to 870
260

Thermal Properties

Latent Heat of Fusion, J/g 410
300
Maximum Temperature: Mechanical, °C 340
980
Melting Completion (Liquidus), °C 1610
1400
Melting Onset (Solidus), °C 1560
1370
Specific Heat Capacity, J/kg-K 560
460
Thermal Conductivity, W/m-K 7.3
11
Thermal Expansion, µm/m-K 9.3
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.0
1.5
Electrical Conductivity: Equal Weight (Specific), % IACS 2.0
1.7

Otherwise Unclassified Properties

Base Metal Price, % relative 36
41
Density, g/cm3 4.5
8.2
Embodied Carbon, kg CO2/kg material 39
7.2
Embodied Energy, MJ/kg 640
100
Embodied Water, L/kg 410
230

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 62 to 100
180
Resilience: Unit (Modulus of Resilience), kJ/m3 3420 to 3540
170
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 35
24
Strength to Weight: Axial, points 58 to 59
22
Strength to Weight: Bending, points 47 to 48
20
Thermal Diffusivity, mm2/s 2.9
2.9
Thermal Shock Resistance, points 68 to 69
17

Alloy Composition

Aluminum (Al), % 5.5 to 6.5
0 to 0.2
Carbon (C), % 0 to 0.080
0 to 0.050
Chromium (Cr), % 0
19.5 to 23.5
Copper (Cu), % 0
1.5 to 3.0
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.25
22 to 37.9
Manganese (Mn), % 0
0 to 1.0
Molybdenum (Mo), % 0
2.5 to 3.5
Nickel (Ni), % 0
38 to 46
Nitrogen (N), % 0 to 0.030
0
Oxygen (O), % 0 to 0.13
0
Ruthenium (Ru), % 0.080 to 0.14
0
Silicon (Si), % 0
0 to 0.050
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 88 to 90.9
0.6 to 1.2
Vanadium (V), % 3.5 to 4.5
0
Residuals, % 0 to 0.4
0