Copper Alloy (UNS C66300)

Jul 15 2013

Topics Covered

Introduction
Chemical Composition
Physical Properties
Mechanical Properties
Other Designations
Fabrication
Applications

Introduction

Copper is known for its excellent thermal and electric conductivity and good resistance to corrosion. Copper alloys are subjected to heat treatment methods in order to enhance their ultimate tensile strength.

Copper alloy C66300 is available in the form of rolled bars, sheets, strips and plates. It is associated with other alloys such as olin alloy C663, which is a phosphor bronze alloy. This alloy is strengthened by dispersion. Copper C66300 is an alloy of copper and silicon. It is available as five rolled tempers, three cold rolled tempers and one annealed temper.

This datasheet will elaborate on the chemical composition, properties and applications of copper UNS C66300 alloy.

Chemical Composition

The chemical composition of copper alloy UNS C66300 is given in the following table.

Element Content (%)
Copper, Cu +Silver, Ag 84.5-87.5
Tin, Sn 1.5-3
Iron, Fe 1.4-2.4
Phosphorus, P 0.35
Cobalt, Co 0.2
Lead, Pb 0.05
Zinc, Zn Remainder

Physical Properties

The following table discusses the physical properties of copper alloy UNS C66300.

Properties Metric Imperial
Density 8.78 gm/cm3 0.317 lb/in3

Mechanical Properties

The mechanical properties of copper alloy UNS C66300 are tabulated below.

Properties Metric Imperial
Modulus of elasticity 124 GPa 18000 ksi

Other Designations

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Some of the other designations that are used to denote copper UNS C66300 are as below:

  • ASTM B592

Fabrication

Some of the methods adopted for fabricating this alloy are coining, bending, coppersmith, upsetting and drawing. Other methods of fabrication are knurling, roll threading, spinning, swaging and stamping.

Forging - Copper UNS C66300 alloy has good forging ability.

Hot working - Copper UNS C66300 alloy has excellent hot working abilities.

Cold working - Copper UNS C66300 alloy has excellent cold working properties.

Applications

Copper UNS C66300 is used in the following applications:-

  • Automotive – making of clutch discs
  • Bearings, bushings and sleeves
  • Electrical – terminals, connectors, fuse clips and switch gears
  • Fasteners and lockwashers
  • Hardware- springs, diaphragms, bellows, beater bars
  • Industrial – textile machinery, chemical hardware, bridge bearing plates and perforated sheets.

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