Copper Alloy (UNS C79200)

Jul 16 2013

Topics Covered

Introduction
Chemical Composition
Physical Properties
Other Designations
Applications

Introduction

Nickel silvers are one category of copper alloys, designated with the UNS numbers C73150 to C79900.

UNS C79200 is a wrought leaded nickel-silver with good formability, corrosion resistance and tarnish-resistance. Its appealing silvery color adds to the aesthetic quality of the product it is used in.

The following datasheet discusses the chemical composition and properties of copper UNS C79200.

Chemical Composition

The chemical composition of copper UNS C79200 is given in the following table.

Element Content (%)
Copper, Cu 59.0 - 66.5
Nickel, Ni 11-13
Iron, Fe 0.25
Lead, Pb 0.8 – 1.4
Manganese, Mn 0.5
Zinc, Zn Balance

Physical Properties

The following table discusses the physical properties of copper UNS C79200.

Properties Metric Imperial
Density 8.6 g/cm3 0.314 lb/in3

Other Designations

Other designations that are equivalent to copper UNS C79200 include:

  • ASTM B151
  • ASTM B206

Applications

Copper UNS C79200 finds application in:

  • Rivets
  • Screws
  • Jewelry
  • Lock pins
  • Electrodes
  • Slide fasteners
  • Decorative items
  • Lightning protection
  • Trowels for cement working
  • Heating and cooling equipment
  • Optical instrument components
  • Components in the medical sector
  • Fittings for food and dairy equipment
  • Musical instrument valves and components

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