Aug 6 2012
Topics Covered
IntroductionChemical CompositionPhysical PropertiesMechanical PropertiesOther DesignationsFabrication and Heat Treatment Machinability Welding Forging Hot Working Cold Working AnnealingApplications
Introduction
Pure copper has high electrical and thermal conductivity due to its alloying metals. The UNS numbers C10100 to C13000 denote commercially pure copper. Pure copper is corrosion resistant and exceptionally ductile. Different grades of unalloyed copper perform differently owing to the amount of impurities present in it. The following data sheet discusses the chemical composition, properties, heat treatment and applications of UNS C16200.
Chemical Composition
The following table shows the chemical composition of copper UNS C16200.
| Element |
Content (%) |
| Cu |
99.0 |
| Cd |
1.0 |
Physical Properties
The following table discusses the physical properties of copper UNS C16200.
| Properties |
Metric |
Imperial |
| Density |
8.89 g/cc |
0.321 lb/in3 |
| Melting point |
1030ºC |
1886ºF |
Mechanical Properties
The mechanical properties of copper UNS C16200 are given in the following table.
| Properties |
Metric |
Imperial |
| Tensile strength |
241-689 MPa |
35-100 ksi |
| Yield strength |
48-476 MPa |
7-69 ksi |
| Modulus of elasticity |
117 GPa |
17000 ksi |
| Poissons ratio |
0.328 |
0.328 |
| Shear modulus |
44.1 GPa |
6400 ksi |
Other Designations
Equivalent designations to the copper UNS C16200 include the following.
| AMS 4700 |
ASTM B173 |
ASTM B224 |
ASTM B3 |
ASTM B451 |
ASTM B641 |
MIL W-85 |
| ASTM B1 |
ASTM B174 |
ASTM B246 |
ASTM B33 |
ASTM B470 |
ASTM B698 |
QQ B575 |
| ASTM B111 |
ASTM B187 |
ASTM B272 |
ASTM B355 |
ASTM B48 |
ASTM B75 |
QQ B650 |
| ASTM B133 |
ASTM B188 |
ASTM B280 |
ASTM B359 |
ASTM B49 |
ASTM F68 |
QQ W343 |
| ASTM B152 |
ASTM B189 |
ASTM B286 |
ASTM B432 |
ASTM B496 |
MIL B-18907 |
UNS C10100 |
| ASTM B172 |
ASTM B2 |
ASTM B298 |
ASTM B447 |
ASTM B640 |
MIL W-3318 |
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Fabrication and Heat Treatment
Machinability
The rate of machinability of the UNS C16200 is 20.
Welding
The preferred welding methods for Copper UNS C16200 are soldering, brazing, oxyacetylene welding, gas shielded arc welding and butt welding. Coated metal arc welding, spot welding and seam welding are not recommended for this alloy.
Forging
The forging temperature for copper UNS C16200 ranges between 760 and 871ºC (1400 and 1600ºF).
Hot Working
Copper UNS C16200 alloy have excellent hot working property.
Cold Working
Copper UNS C16200 alloys have good cold working property.
Annealing
UNS C12900 copper alloys are annealed at temperatures ranging from 371 and 648ºC (700 and 1200ºF).
Applications
UNS C12900 alloys find applications in:
- Electrical and electronic conductors
- Wave guides
- Cavity resonators
- Superconductor matrixes
- Vacuum tube and solid-state devices
- Glass-to-metal seals