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C70700 Copper-nickel vs. Grade 37 Titanium

C70700 copper-nickel belongs to the copper alloys classification, while grade 37 titanium belongs to the titanium alloys. There are 29 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 C70700 copper-nickel and the bottom bar is grade 37 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
110
Elongation at Break, % 39
22
Poisson's Ratio 0.34
0.32
Shear Modulus, GPa 46
40
Shear Strength, MPa 220
240
Tensile Strength: Ultimate (UTS), MPa 320
390
Tensile Strength: Yield (Proof), MPa 110
250

Thermal Properties

Latent Heat of Fusion, J/g 220
420
Maximum Temperature: Mechanical, °C 220
310
Melting Completion (Liquidus), °C 1120
1650
Melting Onset (Solidus), °C 1060
1600
Specific Heat Capacity, J/kg-K 390
550
Thermal Conductivity, W/m-K 59
21
Thermal Expansion, µm/m-K 16
8.9

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
3.4
Electrical Conductivity: Equal Weight (Specific), % IACS 12
6.8

Otherwise Unclassified Properties

Base Metal Price, % relative 34
36
Density, g/cm3 8.9
4.5
Embodied Carbon, kg CO2/kg material 3.4
31
Embodied Energy, MJ/kg 52
500
Embodied Water, L/kg 300
120

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 100
76
Resilience: Unit (Modulus of Resilience), kJ/m3 51
280
Stiffness to Weight: Axial, points 7.6
13
Stiffness to Weight: Bending, points 19
35
Strength to Weight: Axial, points 10
24
Strength to Weight: Bending, points 12
26
Thermal Diffusivity, mm2/s 17
8.4
Thermal Shock Resistance, points 12
29

Alloy Composition

Aluminum (Al), % 0
1.0 to 2.0
Carbon (C), % 0
0 to 0.080
Copper (Cu), % 88.5 to 90.5
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 0 to 0.050
0 to 0.3
Manganese (Mn), % 0 to 0.5
0
Nickel (Ni), % 9.5 to 10.5
0
Nitrogen (N), % 0
0 to 0.030
Oxygen (O), % 0
0 to 0.25
Titanium (Ti), % 0
96.9 to 99
Residuals, % 0
0 to 0.4