Jul 24 2013
Topics Covered
Introduction
Chemical Composition
Physical Properties
Mechanical Properties
Thermal Properties
Other Designations
Applications
Introduction
Pure copper has the best electrical and thermal conductivity of any commercial metal. It forms alloys more freely than most of the metals. Copper UNSC76400 is a nickel silver alloy that has pleasing silver-like color, good corrosion and tarnish-resistance performance, and good formability.
The following datasheet discusses the chemical composition and properties of copper UNS C76400.
Chemical Composition
The chemical composition of copper UNS C76400 is given in the following table.
|
Element |
Content (%) |
|
Copper, Cu |
60-63 |
|
Nickel, Ni |
17-19 |
|
Manganese, Mn |
0.5 |
|
Iron, Fe |
0.25 |
|
Lead, Pb |
0.05 |
|
Zinc, Zn |
Balance |
Physical Properties
The following table discusses the physical properties of copper UNS C76400.
|
Properties |
Metric |
Imperial |
|
Density |
8.7 g/cm3 |
0.314 lb/in3 |
Mechanical Properties
The mechanical properties of UNS C76400 copper wire (annealed) are tabulated below.
|
Properties |
Metric |
Imperial |
|
Tensile strength |
413 MPa |
60 ksi |
|
Modulus of elasticity |
12500 kg/mm2 |
18000 ksi |
Thermal Properties
The following table discusses the thermal properties of copper UNS C76400.
|
Properties |
Metric |
Imperial |
|
Thermal conductivity |
0.07 cal/cm2/cm/sec/°C |
17 BTU/ft2/ft/hr/°F |
|
Coefficient of thermal expansion |
16.7µm/m°C |
9.3 µin/in°F |
Other Designations
Equivalent materials to UNS C76400 copper alloy are included in the following list:
-
ASTM B151
-
ASTM B206
-
QQ W321.
Applications
Copper UNS C76400 finds application in:
-
Camera parts
-
Optical instrument components
-
Radio dials
-
Costume jewelry
-
Zippers
-
Table flatware and hollowware
-
Musical instrument components.