Topics CoveredIntroductionChemical CompositionPhysical PropertiesOther DesignationsFabrication and Heat Treatment Machinability Welding Forging Hot Working Cold Working AnnealingApplications
Unalloyed coppers have high electrical and thermal conductivity as well as high resistance to corrosion. The UNS numbers C10100 to C13000 are used to denote commercially pure copper. The behavior of different grades of unalloyed copper varies with the amount of impurities present in it. Oxygen-free coppers are used for applications that require high conductivity and exceptional ductility.
The following data sheet discusses in detail about oxygen free extra low phosphorus copper UNS C10300.
The following table shows the chemical composition of UNS C10300 oxygen free copper.
The physical properties of UNS C10300 oxygen free copper are given in the following table.
||8.8 - 8.94 g/cm³
||0.317 - 0.323 lb/in3|
Other designations that are equivalent to UNS C10300 oxygen free copper include the following.
Fabrication and Heat Treatment
UNS C10300 copper has a machinability rate of 20%.
Following are the recommended welding methods for UNS C10300 copper:
- Soldering – excellent
- Brazing – excellent
- Oxyacetylene welding – fair
- Gas shielded arc welding – excellent
- Coated metal arc welding – recommended
- Spot welding - not recommended
- Seam welding - not recommended
- Butt welding - good
UNS C10300 copper is forged at hot working temperature between 760 to 871°C (1400 to 1600°F). The hot forgeability rate of this metal is 65%.
UNS C10300 copper has excellent hot working property.
UNS C10300 copper has good cold working property.
Annealing of UNS C10300 copper is performed at temperature between 371 and 649°C (700 and 1200°F).
The following are the major applications of UNS C10300 oxygen free copper:
- Electrical and electronic conductors
- Wave guides
- Cavity resonators
- Superconductor matrixes
- Vacuum tube and solid-state devices
- Glass-to-metal seals