Nov 12 2012
Topics Covered
Introduction
Chemical Composition
Physical Properties
Mechanical Properties
Other Designations
Fabrication and heat treatment
Welding
Hot Working
Cold Working
Annealing
Introduction
Aluminium / Aluminum bronze UNS C63800 alloy has a protective
alumina film which provides strength and corrosion resistance to the
alloy. UNS C63800 is an alloy of copper and Aluminium / aluminum
which is also commonly known as coronze.
Chemical Composition
The following table shows the chemical composition of UNS C63800
copper alloy.
| Element |
Content
(%) |
| Cu |
99.5 |
| Al |
2.8 |
| Si |
1.8 |
| Cr |
0.40 |
Physical Properties
The physical properties of UNS C63800 are outlined in the following
table.
| Properties |
Metric |
Imperial |
| Density |
8.8-8.94 g/cm3 |
0.317-0.323 lb/in³ |
Mechanical Properties
The following table gives the mechanical properties of UNS C63800
copper alloy.
| Properties |
Metric |
Imperial |
| Poisson's ratio |
117 GPa |
16969 ksi |
| Elastic modulus |
0.34 |
0.34 |
| Tensile Strength |
Depends on temper |
Depends on temper |
| Yield Strength |
Depends on temper |
Depends on temper |
| Elongation (%) |
36 |
36 |
Other Designations
Equivalent designations to UNS C63800 include:
Fabrication and heat treatment
Welding
The welding techniques preferred for UNS C63800 copper alloy
are soldering, brazing, oxyacetylene welding, gas shielded arc welding,
coated metal arc welding, spot welding, seam welding and butt welding.
Hot Working
UNS C63800 has excellent hot forming characteristics.
Cold Working
UNS C63800 copper alloy has excellent cold forming capacity.
Annealing
UNS C63800 can be annealed at temperatures ranging between 398 and
593°C (750 and 1100°F)