Aug 6 2012
Topics Covered
IntroductionChemical CompositionPhysical PropertiesMechanical PropertiesFabrication and Heat Treatment Machinability Welding Forging Hot Working Cold Working Annealing
Introduction
The UNS C14300 cadmium copper deoxidized alloy has high forgeability, high corrosion resistance and excellent hot and cold workability. This alloy can be fabricated by coppersmithing, drawing and upsetting, coining, stamping, hot forging and pressing, swaging, and spinning.
Chemical Composition
The following table shows chemical composition of the UNS C14300 copper alloy.
Element |
Content (%) |
Cu |
99.9 |
Cd |
0.1 |
Physical Properties
The physical properties of the UNS C14300 copper alloy are outlined in the following table.
Properties |
Metric |
Imperial |
Density |
8.94 g/cc |
0.323 lb/in3 |
Mechanical Properties
The mechanical properties of the UNS C14300 copper alloy are tabulated below.
Properties |
Metric |
Imperial |
Tensile strength |
221-400 MPa |
32100 - 58000 psi |
Yield strength |
76.0-386 MPa |
11000 - 56000 psi |
Elongation at break (25.4 mm) |
42% |
42% |
Elastic modulus |
117 GPa |
17000 ksi |
Poisson’s ratio |
0.34 |
0.34 |
Machinability (UNS C36000 (free-cutting brass) = 100%) |
20% |
20% |
Shear modulus |
44 GPa |
6380 ksi |
Fabrication and Heat Treatment
Machinability
The machinability rate of the UNS C14300 copper alloy is 20.
Welding
Brazing, soldering, gas shielded arc welding, butt welding, and oxyacetylene welding are the methods recommended for welding the UNS C14300 copper alloy. It is suggested that coated metal arc welding, seam welding, and spot welding methods should not be used for welding this alloy.
Forging
The UNS C14300 copper alloy can be forged at 760 to 871°C (1400 to 1600°F). Forgeability of this alloy is 65.
Hot Working
UNS C14300 copper alloy has excellent hot working capacity.
Cold Working
UNS C14300 copper alloy has good cold working capacity.
Annealing
Annealing of the UNS C14300 copper alloy can be done at temperatures ranging from 538 to 760°C (1000 to 1400°F).