Cadmium Copper Deoxidized UNS C14300

Topics Covered

Introduction
Chemical Composition
Physical Properties
Mechanical Properties
Fabrication 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).

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