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Grade CW2M Nickel vs. Grade 21 Titanium

Grade CW2M nickel belongs to the nickel alloys classification, while grade 21 titanium belongs to the titanium alloys. There are 25 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is grade CW2M nickel and the bottom bar is grade 21 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
140
Elongation at Break, % 23
9.0 to 17
Fatigue Strength, MPa 190
550 to 660
Poisson's Ratio 0.29
0.32
Shear Modulus, GPa 83
51
Tensile Strength: Ultimate (UTS), MPa 560
890 to 1340
Tensile Strength: Yield (Proof), MPa 310
870 to 1170

Thermal Properties

Latent Heat of Fusion, J/g 330
410
Maximum Temperature: Mechanical, °C 960
310
Melting Completion (Liquidus), °C 1520
1740
Melting Onset (Solidus), °C 1460
1690
Specific Heat Capacity, J/kg-K 430
500
Thermal Expansion, µm/m-K 12
7.1

Otherwise Unclassified Properties

Base Metal Price, % relative 70
60
Density, g/cm3 8.8
5.4
Embodied Carbon, kg CO2/kg material 12
32
Embodied Energy, MJ/kg 170
490
Embodied Water, L/kg 290
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
110 to 180
Resilience: Unit (Modulus of Resilience), kJ/m3 220
2760 to 5010
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
32
Strength to Weight: Axial, points 18
46 to 69
Strength to Weight: Bending, points 17
38 to 50
Thermal Shock Resistance, points 16
66 to 100

Alloy Composition

Aluminum (Al), % 0
2.5 to 3.5
Carbon (C), % 0 to 0.020
0 to 0.050
Chromium (Cr), % 15 to 17.5
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 0 to 2.0
0 to 0.4
Manganese (Mn), % 0 to 1.0
0
Molybdenum (Mo), % 15 to 17.5
14 to 16
Nickel (Ni), % 60.1 to 70
0
Niobium (Nb), % 0
2.2 to 3.2
Nitrogen (N), % 0
0 to 0.030
Oxygen (O), % 0
0 to 0.17
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0 to 0.8
0.15 to 0.25
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0
76 to 81.2
Tungsten (W), % 0 to 1.0
0
Residuals, % 0
0 to 0.4