May 24 2013
Topics Covered
Introduction
Chemical Composition
Physical Properties
Mechanical Properties
Other Designations
Fabrication
Applications
Introduction
Copper and its alloys exhibit excellent thermal and electrical conductivity. The nature and amount of the alloyed metals determine the application of copper alloys. To enhance the ultimate yield strength of copper alloys they are subjected to heat treatment methods.
Copper C66100 alloy exhibits good strength and resistance to atmospheric, sea water, acids and organic chemicals. It is composed of copper, silicon, manganese and lead. It is available in the form of nuts, bolts, rods, screws and bars. A notable feature of this alloy is that it is free-cutting and suitable for use in high speed screw machines.
This datasheet will elaborate on the chemical composition, properties and applications of copper UNS C66100 alloy.
Chemical Composition
The chemical composition of copper alloy UNS C66100 is given in the following table.
|
Element |
Content (%) |
|
Copper, Cu +Silver, Ag |
Remainder |
|
Silicon, Si |
2.8-3.5 |
|
Manganese, Mn |
1.5 |
|
Zinc, Zn |
1.5 |
|
Lead, Pb |
0.2-0.8 |
|
Iron, Fe |
0.25 |
Physical Properties
The following table discusses the physical properties of copper alloy UNS C66100.
|
Properties |
Metric |
Imperial |
|
Density |
8.52 gm/cm3 |
0.308 lb/in3 |
Mechanical Properties
The mechanical properties of copper alloy UNS C66100 are tabulated below.
|
Properties |
Metric |
Imperial |
|
Modulus of elasticity |
103.4 GPa |
15000 ksi |
Other Designations
Some of the other designations that are used to denote copper UNS C66100 are as below:-
-
ASME SB98
-
ASTM B98
-
ASTM F467
-
ASTM F468
Fabrication
Machinability: The machinability rating of this alloy is 50.
Welding : Copper alloy C66100 is not recommended for welding due to the lead content.
Hot working - Copper UNS C66100 alloy is not recommended for hot working.
Cold working - Copper UNS C66100 alloy has excellent cold working properties.
Annealing - The annealing temperature for this alloy is between75 and 700 oC.(887-1292oF)
Applications
Copper UNS C66100 is used in the following applications:
-
Valve guides, valve stems, pole line hardware, fasteners and marine fittings
-
Bushings and bearings
-
Electrical contacts, terminals, switch blades and sockets
-
Industrial – oil refinery plumbing tube, high strength bolts