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CC381H Copper-nickel vs. Grade 21 Titanium

CC381H copper-nickel belongs to the copper alloys classification, while grade 21 titanium belongs to the titanium alloys. There are 26 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is CC381H copper-nickel and the bottom bar is grade 21 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 140
140
Elongation at Break, % 20
9.0 to 17
Poisson's Ratio 0.33
0.32
Shear Modulus, GPa 52
51
Tensile Strength: Ultimate (UTS), MPa 380
890 to 1340
Tensile Strength: Yield (Proof), MPa 140
870 to 1170

Thermal Properties

Latent Heat of Fusion, J/g 240
410
Maximum Temperature: Mechanical, °C 260
310
Melting Completion (Liquidus), °C 1180
1740
Melting Onset (Solidus), °C 1120
1690
Specific Heat Capacity, J/kg-K 410
500
Thermal Conductivity, W/m-K 30
7.5
Thermal Expansion, µm/m-K 16
7.1

Otherwise Unclassified Properties

Base Metal Price, % relative 40
60
Density, g/cm3 8.9
5.4
Embodied Carbon, kg CO2/kg material 5.0
32
Embodied Energy, MJ/kg 73
490
Embodied Water, L/kg 280
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 60
110 to 180
Resilience: Unit (Modulus of Resilience), kJ/m3 68
2760 to 5010
Stiffness to Weight: Axial, points 8.6
14
Stiffness to Weight: Bending, points 19
32
Strength to Weight: Axial, points 12
46 to 69
Strength to Weight: Bending, points 13
38 to 50
Thermal Diffusivity, mm2/s 8.4
2.8
Thermal Shock Resistance, points 13
66 to 100

Alloy Composition


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Aluminum (Al), % 0 to 0.010
2.5 to 3.5
Carbon (C), % 0 to 0.030
0 to 0.050
Copper (Cu), % 64.5 to 69.9
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 0.5 to 1.5
0 to 0.4
Lead (Pb), % 0 to 0.030
0
Manganese (Mn), % 0.6 to 1.2
0
Molybdenum (Mo), % 0
14 to 16
Nickel (Ni), % 29 to 31
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 0.010
0
Silicon (Si), % 0 to 0.1
0.15 to 0.25
Sulfur (S), % 0 to 0.010
0
Titanium (Ti), % 0
76 to 81.2
Zinc (Zn), % 0 to 0.5
0
Residuals, % 0
0 to 0.4