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Grade 20 Titanium vs. Grade CW2M Nickel

Grade 20 titanium belongs to the titanium alloys classification, while grade CW2M nickel belongs to the nickel alloys. There are 24 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 20 titanium and the bottom bar is grade CW2M nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
210
Elongation at Break, % 5.7 to 17
23
Fatigue Strength, MPa 550 to 630
190
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 47
83
Tensile Strength: Ultimate (UTS), MPa 900 to 1270
560
Tensile Strength: Yield (Proof), MPa 850 to 1190
310

Thermal Properties

Latent Heat of Fusion, J/g 400
330
Maximum Temperature: Mechanical, °C 370
960
Melting Completion (Liquidus), °C 1660
1520
Melting Onset (Solidus), °C 1600
1460
Specific Heat Capacity, J/kg-K 520
430
Thermal Expansion, µm/m-K 9.6
12

Otherwise Unclassified Properties

Density, g/cm3 5.0
8.8
Embodied Carbon, kg CO2/kg material 52
12
Embodied Energy, MJ/kg 860
170
Embodied Water, L/kg 350
290

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 71 to 150
110
Resilience: Unit (Modulus of Resilience), kJ/m3 2940 to 5760
220
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 33
23
Strength to Weight: Axial, points 50 to 70
18
Strength to Weight: Bending, points 41 to 52
17
Thermal Shock Resistance, points 55 to 77
16

Alloy Composition

Aluminum (Al), % 3.0 to 4.0
0
Carbon (C), % 0 to 0.050
0 to 0.020
Chromium (Cr), % 5.5 to 6.5
15 to 17.5
Hydrogen (H), % 0 to 0.020
0
Iron (Fe), % 0 to 0.3
0 to 2.0
Manganese (Mn), % 0
0 to 1.0
Molybdenum (Mo), % 3.5 to 4.5
15 to 17.5
Nickel (Ni), % 0
60.1 to 70
Nitrogen (N), % 0 to 0.030
0
Oxygen (O), % 0 to 0.12
0
Palladium (Pd), % 0.040 to 0.080
0
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0
0 to 0.8
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 71 to 77
0
Tungsten (W), % 0
0 to 1.0
Vanadium (V), % 7.5 to 8.5
0
Zirconium (Zr), % 3.5 to 4.5
0
Residuals, % 0 to 0.4
0