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UNS C19100 Nickel-Tellurium Copper

C19100 copper is a lightly alloyed grade of copper, formulated for primary forming into wrought products. It can have a moderately high ductility among the wrought coppers in the database.

The properties of C19100 copper include four common variations. This page shows summary ranges across all of them. For more specific values, follow the links immediately below. The graph bars on the material properties cards further below compare C19100 copper to: wrought coppers (top), all copper alloys (middle), and the entire database (bottom). A full bar means this is the highest value in the relevant set. A half-full bar means it's 50% of the highest, and so on.

Mechanical Properties

Elastic (Young's, Tensile) Modulus

120 GPa 17 x 106 psi

Elongation at Break

17 to 37 %

Poisson's Ratio


Rockwell F Hardness

35 to 97

Shear Modulus

43 GPa 6.3 x 106 psi

Shear Strength

170 to 330 MPa 24 to 49 x 103 psi

Tensile Strength: Ultimate (UTS)

250 to 630 MPa 36 to 91 x 103 psi

Tensile Strength: Yield (Proof)

75 to 550 MPa 11 to 80 x 103 psi

Thermal Properties

Latent Heat of Fusion

210 J/g

Maximum Temperature: Mechanical

200 °C 390 °F

Melting Completion (Liquidus)

1080 °C 1980 °F

Melting Onset (Solidus)

1040 °C 1900 °F

Specific Heat Capacity

390 J/kg-K 0.092 BTU/lb-°F

Thermal Conductivity

250 W/m-K 150 BTU/h-ft-°F

Thermal Expansion

17 µm/m-K

Electrical Properties

Electrical Conductivity: Equal Volume

55 % IACS

Electrical Conductivity: Equal Weight (Specific)

56 % IACS

Otherwise Unclassified Properties

Base Metal Price

33 % relative


8.9 g/cm3 560 lb/ft3

Embodied Carbon

2.7 kg CO2/kg material

Embodied Energy

43 MJ/kg 18 x 103 BTU/lb

Embodied Water

310 L/kg 37 gal/lb

Common Calculations

Resilience: Ultimate (Unit Rupture Work)

60 to 99 MJ/m3

Resilience: Unit (Modulus of Resilience)

24 to 1310 kJ/m3

Stiffness to Weight: Axial

7.2 points

Stiffness to Weight: Bending

18 points

Strength to Weight: Axial

7.7 to 20 points

Strength to Weight: Bending

9.9 to 18 points

Thermal Diffusivity

73 mm2/s

Thermal Shock Resistance

8.9 to 22 points

Alloy Composition

Among wrought copper alloys, the composition of C19100 copper is notable for including tellurium (Te). Tellurium is used to improve machinability.

Copper (Cu)Cu 96.5 to 98.6
Nickel (Ni)Ni 0.9 to 1.3
Tellurium (Te)Te 0.35 to 0.6
Phosphorus (P)P 0.15 to 0.35
Zinc (Zn)Zn 0 to 0.5
Iron (Fe)Fe 0 to 0.2
Lead (Pb)Pb 0 to 0.1
Residualsres. 0 to 0.5

All values are % weight. Ranges represent what is permitted under applicable standards.

Followup Questions

Similar Alloys

Further Reading

Copper Alloys: Preparation, Properties and Applications, Michael Naboka and Jennifer Giordano (editors), 2013