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Grade 2 Titanium vs. C71520 Copper-nickel

Grade 2 titanium belongs to the titanium alloys classification, while C71520 copper-nickel belongs to the copper alloys. There are 29 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 2 titanium and the bottom bar is C71520 copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
140
Elongation at Break, % 23
10 to 45
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 38
51
Shear Strength, MPa 270
250 to 340
Tensile Strength: Ultimate (UTS), MPa 420
370 to 570
Tensile Strength: Yield (Proof), MPa 360
140 to 430

Thermal Properties

Latent Heat of Fusion, J/g 420
230
Maximum Temperature: Mechanical, °C 320
260
Melting Completion (Liquidus), °C 1660
1170
Melting Onset (Solidus), °C 1610
1120
Specific Heat Capacity, J/kg-K 540
400
Thermal Conductivity, W/m-K 22
32
Thermal Expansion, µm/m-K 9.0
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.6
5.7
Electrical Conductivity: Equal Weight (Specific), % IACS 7.2
5.8

Otherwise Unclassified Properties

Base Metal Price, % relative 37
40
Density, g/cm3 4.5
8.9
Embodied Carbon, kg CO2/kg material 31
5.0
Embodied Energy, MJ/kg 510
73
Embodied Water, L/kg 110
280

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 92
54 to 130
Resilience: Unit (Modulus of Resilience), kJ/m3 600
67 to 680
Stiffness to Weight: Axial, points 13
8.6
Stiffness to Weight: Bending, points 35
19
Strength to Weight: Axial, points 26
12 to 18
Strength to Weight: Bending, points 28
13 to 17
Thermal Diffusivity, mm2/s 8.9
8.9
Thermal Shock Resistance, points 32
12 to 19

Alloy Composition

Carbon (C), % 0 to 0.080
0 to 0.050
Copper (Cu), % 0
65 to 71.6
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.3
0.4 to 1.0
Lead (Pb), % 0
0 to 0.020
Manganese (Mn), % 0
0 to 1.0
Nickel (Ni), % 0
28 to 33
Nitrogen (N), % 0 to 0.030
0
Oxygen (O), % 0 to 0.25
0
Phosphorus (P), % 0
0 to 0.2
Sulfur (S), % 0
0 to 0.020
Titanium (Ti), % 98.9 to 100
0
Zinc (Zn), % 0
0 to 0.5
Residuals, % 0
0 to 0.5