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Grade C-5 Titanium vs. Nickel 689

Grade C-5 titanium belongs to the titanium alloys classification, while nickel 689 belongs to the nickel alloys. There are 26 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is grade C-5 titanium and the bottom bar is nickel 689.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 310
350
Elastic (Young's, Tensile) Modulus, GPa 110
210
Elongation at Break, % 6.7
23
Fatigue Strength, MPa 510
420
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 40
80
Tensile Strength: Ultimate (UTS), MPa 1000
1250
Tensile Strength: Yield (Proof), MPa 940
690

Thermal Properties

Latent Heat of Fusion, J/g 410
330
Maximum Temperature: Mechanical, °C 340
990
Melting Completion (Liquidus), °C 1610
1440
Melting Onset (Solidus), °C 1560
1390
Specific Heat Capacity, J/kg-K 560
450
Thermal Expansion, µm/m-K 9.6
12

Otherwise Unclassified Properties

Base Metal Price, % relative 36
70
Density, g/cm3 4.4
8.5
Embodied Carbon, kg CO2/kg material 38
11
Embodied Energy, MJ/kg 610
150
Embodied Water, L/kg 200
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 66
240
Resilience: Unit (Modulus of Resilience), kJ/m3 4200
1170
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 35
23
Strength to Weight: Axial, points 63
41
Strength to Weight: Bending, points 50
30
Thermal Shock Resistance, points 71
35

Alloy Composition

Aluminum (Al), % 5.5 to 6.8
0.75 to 1.3
Boron (B), % 0
0.0030 to 0.010
Carbon (C), % 0 to 0.1
0.1 to 0.2
Chromium (Cr), % 0
18 to 20
Cobalt (Co), % 0
9.0 to 11
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.4
0 to 5.0
Manganese (Mn), % 0
0 to 0.5
Molybdenum (Mo), % 0
9.0 to 10.5
Nickel (Ni), % 0 to 0.050
48.3 to 60.9
Oxygen (O), % 0 to 0.25
0
Phosphorus (P), % 0
0 to 0.015
Silicon (Si), % 0
0 to 0.5
Sulfur (S), % 0
0 to 0.015
Titanium (Ti), % 87.5 to 91
2.3 to 2.8
Vanadium (V), % 3.5 to 4.5
0
Residuals, % 0 to 0.4
0