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Grade 37 Titanium vs. Nickel 689

Grade 37 titanium belongs to the titanium alloys classification, while nickel 689 belongs to the nickel alloys. There are 27 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is grade 37 titanium and the bottom bar is nickel 689.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
210
Elongation at Break, % 22
23
Fatigue Strength, MPa 170
420
Poisson's Ratio 0.32
0.29
Reduction in Area, % 34
21
Shear Modulus, GPa 40
80
Shear Strength, MPa 240
790
Tensile Strength: Ultimate (UTS), MPa 390
1250
Tensile Strength: Yield (Proof), MPa 250
690

Thermal Properties

Latent Heat of Fusion, J/g 420
330
Maximum Temperature: Mechanical, °C 310
990
Melting Completion (Liquidus), °C 1650
1440
Melting Onset (Solidus), °C 1600
1390
Specific Heat Capacity, J/kg-K 550
450
Thermal Expansion, µm/m-K 8.9
12

Otherwise Unclassified Properties

Base Metal Price, % relative 36
70
Density, g/cm3 4.5
8.5
Embodied Carbon, kg CO2/kg material 31
11
Embodied Energy, MJ/kg 500
150
Embodied Water, L/kg 120
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 76
240
Resilience: Unit (Modulus of Resilience), kJ/m3 280
1170
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 35
23
Strength to Weight: Axial, points 24
41
Strength to Weight: Bending, points 26
30
Thermal Shock Resistance, points 29
35

Alloy Composition

Aluminum (Al), % 1.0 to 2.0
0.75 to 1.3
Boron (B), % 0
0.0030 to 0.010
Carbon (C), % 0 to 0.080
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 0.3
0 to 5.0
Manganese (Mn), % 0
0 to 0.5
Molybdenum (Mo), % 0
9.0 to 10.5
Nickel (Ni), % 0
48.3 to 60.9
Nitrogen (N), % 0 to 0.030
0
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), % 96.9 to 99
2.3 to 2.8
Residuals, % 0 to 0.4
0