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C72700 Copper-nickel vs. AWS ERTi-2

C72700 copper-nickel belongs to the copper alloys classification, while AWS ERTi-2 belongs to the titanium alloys. There are 28 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is C72700 copper-nickel and the bottom bar is AWS ERTi-2.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
110
Elongation at Break, % 4.0 to 36
20
Poisson's Ratio 0.34
0.32
Shear Modulus, GPa 44
40
Tensile Strength: Ultimate (UTS), MPa 460 to 1070
340
Tensile Strength: Yield (Proof), MPa 580 to 1060
280

Thermal Properties

Latent Heat of Fusion, J/g 210
420
Maximum Temperature: Mechanical, °C 200
320
Melting Completion (Liquidus), °C 1100
1670
Melting Onset (Solidus), °C 930
1620
Specific Heat Capacity, J/kg-K 380
540
Thermal Conductivity, W/m-K 54
21
Thermal Expansion, µm/m-K 17
8.7

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
3.6
Electrical Conductivity: Equal Weight (Specific), % IACS 11
7.1

Otherwise Unclassified Properties

Base Metal Price, % relative 36
37
Density, g/cm3 8.8
4.5
Embodied Carbon, kg CO2/kg material 4.0
31
Embodied Energy, MJ/kg 62
510
Embodied Water, L/kg 350
110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 20 to 380
64
Resilience: Unit (Modulus of Resilience), kJ/m3 1420 to 4770
360
Stiffness to Weight: Axial, points 7.4
13
Stiffness to Weight: Bending, points 19
35
Strength to Weight: Axial, points 14 to 34
21
Strength to Weight: Bending, points 15 to 26
24
Thermal Diffusivity, mm2/s 16
8.7
Thermal Shock Resistance, points 16 to 38
27

Alloy Composition

Carbon (C), % 0
0 to 0.030
Copper (Cu), % 82.1 to 86
0
Hydrogen (H), % 0
0 to 0.0080
Iron (Fe), % 0 to 0.5
0 to 0.12
Lead (Pb), % 0 to 0.020
0
Magnesium (Mg), % 0 to 0.15
0
Manganese (Mn), % 0.050 to 0.3
0
Nickel (Ni), % 8.5 to 9.5
0
Niobium (Nb), % 0 to 0.1
0
Nitrogen (N), % 0
0 to 0.015
Oxygen (O), % 0
0.080 to 0.16
Tin (Sn), % 5.5 to 6.5
0
Titanium (Ti), % 0
99.667 to 99.92
Zinc (Zn), % 0 to 0.5
0
Residuals, % 0 to 0.3
0