May 17 2013
Topics Covered
Introduction
Chemical Composition
Physical Properties
Mechanical Properties
Thermal Properties
Fabrication
Applications
Introduction
A copper alloy is an alloy with copper as its primary metal, which is mixed with different alloying elements to provide a range of materials designed to maximize characteristics such as ductility, strength, machinability, formability, or electrical conductivity.
UNS C19210 copper alloy possesses good corrosion resistance in natural atmosphere, industrial atmosphere as well as sea atmosphere. This alloy has better abrasive corrosion resistance than UNS C19210 when exposed to different waters and neutral saline solutions. Likewise it is resistant to stress corrosion cracking.
The following datasheet discusses the chemical composition and properties of copper UNS C19210.
Chemical Composition
The chemical composition of UNS C19210 copper is outlined in the following table.
|
Element |
Content (%) |
|
Iron, Fe |
0.05-0.15 |
|
Phosphorous |
0.025-0.04 |
|
Copper, Cu |
Balance |
Physical Properties
The following table discusses the physical properties of copper UNS C19210.
|
Properties |
Metric |
Imperial |
|
Density |
8.94 g/cm3 |
0.323 lb/in3 |
|
Melting point |
≤ 1082 °C |
≤ 1980°F |
Mechanical Properties
The mechanical properties of copper UNS C19210 are tabulated below.
|
Properties |
Metric |
Imperial |
|
Tensile strength |
345 MPa |
50000 ksi |
|
Yield strength |
330 MPa |
47900 ksi |
|
Modulus of elasticity |
125 GPa |
18100 ksi |
|
Elongation |
13 % |
13 % |
|
Machinability |
20 |
20 |
Thermal Properties
The thermal properties of copper UNS C19210 are tabulated below.
|
Properties |
Metric |
Imperial |
|
Thermal expansion co-efficient (@20-300°C/68-572°F) |
16.9 µm/m°C |
9.39 µin/in°F |
|
Thermal conductivity |
28 W/mK |
200 BTU in/hr.ft².°F |
Fabrication
Welding - Soldering, brazing, and coated metal arc welding of copper UNS C19210 is rated as excellent. This alloy can also be welded using butt, resistance, and oxyacetylene welding; however gas-shielded arc, spot, and seam resistance welding should be avoided.
Cold working- The capacity of UNS C19210 for being cold worked is considered as excellent.
Applications
Copper UNS C19210 finds application in:
-
Connector pins
-
Lead frames used in power transistors
-
Components for the electrical industry
-
Air conditioner heat exchanger tubing.