Sep 13 2012
Topics Covered
IntroductionChemical
CompositionPhysical PropertiesMechanical PropertiesThermal propertiesOther DesignationsFabrication and Heat
Treatment Machinability Welding Heat
Treatment
Introduction
UNS C96400 copper alloy is ductile and anti-corrosive. The addition of iron
to the alloy makes it resistant to flowing sea-water. UNS C96400 alloy is used
in marine applications, condensers and heat exchangers.
The following datasheet provides chemical composition and properties of UNS
C96400 alloy.
Chemical Composition
The chemical composition of UNS C96400 alloy is given in the following
table.
| Element |
Content
(%) |
| Cu |
69.1 |
| Ni |
30 |
| Fe |
0.9 |
Physical Properties
The following table details the physical properties of UNS C96400 alloy.
| Properties |
Metric |
Imperial |
| Density |
8.94 g/cm3 |
0.323 lb/in³ |
Mechanical Properties
The mechanical properties of UNS C96400 alloy are shown in the following
table.
| Properties |
Metric |
Imperial |
| Hardness, Brinell |
140 |
140 |
| Tensile strength |
470 MPa |
68200 psi |
| Yield strength |
255 MPa |
37000 psi |
| Elongation at break |
28.00% |
28.00% |
| Machinability |
20 |
20 |
| Charpy impact |
106 J |
78.2 ft.lb |
| Fatigue strength |
125 MPa |
18100 psi |
| Elastic modulus |
117 GPa |
16969 ksi |
| Poisson's ratio |
0.34 |
0.34 |
Thermal properties
The following table discusses the thermal properties of UNS C96400 alloy.
| Properties |
Metric |
Imperial |
| Thermal conductivity (@20°C/68°F) |
29.0 W/mK |
201 BTUin/hr.ft².°F |
| Thermal expansion co-efficient (@20 - 300°C/68-
72°F) |
16.0 µm/m°C |
8.89 µin/in°F |
Other Designations
Equivalent designations to UNS C96400 alloy include:
- ASTM B30
- ASTM B369
- ASTM B505
- QQ C390
Fabrication and Heat Treatment
Machinability
UNS C96400 alloy has a machinability rating of 20.
Welding
The preferred welding techniques for UNS C96400 alloy are soldering, coated
metal arc welding, brazing and gas shielded arc welding. Carbon arc welding and
oxyacetylene welding are not recommended for this alloy.
Heat Treatment
UNS C96400 alloy does not respond to heat treatment.