May 24 2013
Topics Covered
Introduction
Chemical Composition
Physical Properties
Mechanical Properties
Fabrication
Applications
Introduction
Copper can be easily mined and refined compared to many other metals. Therefore it has been in use for thousands of years. It can be obtained from the ores cuprite, chalcocite, malachite, tenorite, covellite, and bornite. It finds use in construction, marine, defense, architecture, and jewelry sectors.
UNS C23030 is a copper-zinc alloy. It is a type of brass metal. The following datasheet discusses the chemical composition and properties of copper UNS C23030.
Chemical Composition
The chemical composition of UNS C23030 copper alloy is outlined in the following table.
|
Elements |
Content (%) |
|
Copper, Cu |
83.5 - 85.5 |
|
Silicon, Si |
0.2 - 0.4 |
|
Iron, Fe |
0.05 max |
|
Lead, Pb |
0.05 max |
|
Zinc, Zn |
Balance |
Physical Properties
The following table discusses the physical properties of copper UNS C23030.
|
Properties |
Metric |
Imperial |
|
Density |
8.75 g/cm3 |
0.316 lb/in3 |
Mechanical Properties
The mechanical properties of UNS C23030 annealed copper are tabulated below.
|
Properties |
Metric |
Imperial |
|
Tensile strength |
290MPa |
42 ksi |
|
Yield strength |
83 MPa |
12 ksi |
|
Elongation |
70% |
70% |
|
Hardiness, Rockwell F |
55 |
55 |
Fabrication
Machinability - The machinability of copper UNS C23030 is rated at 30.
Welding - Welding methods such as soft soldering and silver alloy brazing, are considered excellent for this alloy. Oxyacetylene welding provides good results. Resistance welding is rated as fair for this alloy.
Cold working - Copper UNS C23030 alloy has excellent cold working properties.
Hot working - Copper UNS C23030 alloy has good hot working abilities at temperatures ranging between 705-870°C (1300-1600°F).
Annealing - Copper UNS C21000 alloy is annealed at temperatures ranging between 425 and 730°C (800 and 1350 °F).
Applications
Copper UNS C23030 is used mainly in rotor applications.