SubsTech     
SubsTech     

to Wrought copper-nickel alloys and Nickel Silvers
to Properties of copper alloys

Wrought copper alloy C77000 (Nickel Silver 55-18)

(submitted by the website administration)

Wrought copper alloy C77000 (Nickel Silver 55-18)
Chemical composition: Ni=18%, Zn=27%, Cu=55%
Property Value in metric unit Value in US unit
Density 8.69*10³ kg/m³ 542 lb/ft³
Modulus of elasticity 124 GPa 18000 ksi
Thermal expansion (20 ºC) 16.7*10-6 ºCˉ¹ 9.3*10-6 in/(in* ºF)
Specific heat capacity 377 J/(kg*K) 0.090 BTU/(lb*ºF)
Thermal conductivity 29.4 W/(m*K) 204 BTU*in/(hr*ft²*ºF)
Electric resistivity 31.4*10-8 Ohm*m 31.4*10-6 Ohm*cm
Tensile strength (annealed) 414 MPa 60000 psi
Yield strength (annealed) 186 MPa 27000 psi
Elongation (annealed) 40 % 40 %
Hardness (annealed) 55 RB 55 RB
Tensile strength (cold work) 745 MPa 108000 psi
Yield strength (cold work) 621 MPa 90000 psi
Elongation (cold work) 2 % 2 %
Hardness (cold work) 96 RB 96 RB
Annealing temperature 600-850 ºC 1100-1500 ºF
Liquidus temperature 1054 ºC 1930 ºF

Related internal links

wrought_copper_alloy_c77000_nickel_silver_55-18.txt · Last modified: 2023/12/14 by dmitri_kopeliovich
Promote in SubsTech       Creative Commons License Except where otherwise noted, this work is licensed under a Creative Commons Attribution-Noncommercial-Share Alike 3.0 License