May 21 2013
Topics Covered
Introduction
Chemical Composition
Physical Properties
Mechanical Properties
Thermal Properties
Other Designations
Fabrication
Applications
Introduction
Copper UNS C51900 is a phosphor bronze wrought alloy. Copper UNS C51900 alloy is resistant to seawater and industrial atmosphere. It is also resistant to stress corrosion cracking. It has an excellent combination of strength and electrical conductivity.
The following datasheet discusses the chemical composition and properties of copper UNS C51900.
Chemical Composition
The chemical composition of copper UNS C51900 is given in the following table.
|
Element |
Content (%) |
|
Tin, Sn |
5 – 7 |
|
Zinc, Zn |
0.3 max |
|
Phosphorous, P |
0.03 - 0.35 |
|
Lead, Pb |
0.05 max |
|
Iron, Fe |
0.1 max |
|
Copper, Cu |
Balance |
Physical Properties
The following table discusses the physical properties of copper UNS C51900.
|
Properties |
Metric |
Imperial |
|
Density |
8.84 g/cm3 |
0.319 lb/in3 |
|
Melting point (solidus) |
930°C |
1700°F |
Mechanical Properties
The mechanical properties of copper UNS C51900 are tabulated below.
|
Properties |
Metric |
Imperial |
|
Tensile strength (H04-temper) |
551- 661 MPa |
80 – 96 ksi |
|
Yield strength |
586 MPa |
84 ksi |
|
Elongation |
13% |
13% |
Thermal Properties
The thermal properties of copper UNS C51900 are tabulated below.
|
Properties |
Metric |
Imperial |
|
Thermal expansion co-efficient (@20-300°C/68-392°F) |
18 x 10-6 /°C |
10x 10-6/°F |
|
Thermal conductivity |
6.2 W/mK |
43 BTU in/hr.ft².°F |
Other Designations
Equivalent material to copper UNS C51900 is ASTM B103.
Fabrication
Machinability - The machinability of copper UNS C51900 alloy is rated at 20.
Welding - Soldering and butt welding are considered excellent welding options for this alloy. Gas arc shielding, laser welding, and spot welding are rated as good while oxyacetylene welding is rated fair. Coated metal arc welding and seam welding methods should be avoided.
Hot working - Copper UNS C51900 alloy has excellent hot working abilities.
Cold working - Copper UNS C51900 alloy has excellent cold working properties.
Applications
Copper UNS C51900 finds application in:
-
Stamped parts
-
Kettles and pots
-
Perforated sheets
-
Connectors
-
Contact springs
-
Flexible metal hoses
-
All types of springs
-
Electrical flexing contact blades
Copper UNS C51900 can be used in the paper, pulp, textile and chemical industries. It is applied in mechanical engineering, shipbuilding, and process equipment manufacture as well.