Copper Alloy (UNS C71580)

Jul 16 2013

Topics Covered

Introduction
Chemical Composition
Physical Properties
Other Designations
Applications

Introduction

Cupronickel alloys (UNS C70600 - C71500) are a category of copper alloys. Copper UNS C71580 alloy is a wrought alloy that has good corrosion resistance especially to saline water and ductility. However, cupronickel alloys display high corrosion rates in polluted or stagnant seawater especially when sulfides or ammonia are present. Hence care must be taken to avoid the use of these alloys in such conditions.

The following datasheet discusses the chemical composition and properties of copper UNS C71580.

Chemical Composition

The chemical composition of copper UNS C71580 is given in the following table.

Element Content (%)
Nickel, Ni 29-33
Zinc, Zn 0.05
Iron, Fe 0.5
Manganese, Mn 0.3
Lead, Pb 0.05
Copper, Cu Balance

Physical Properties

The following table discusses the physical properties of copper UNS C71580.

Properties Metric Imperial
Density 8.9 g/cm3 0.323 lb/in3

Other Designations

Equivalent material to copper UNS C71580 alloy is ASTM F96.

Applications

Copper UNS C71580 finds application in:

  • In marine condenser systems
  • In desalination plants
  • Electronics
  • Microwave condenser tubes
  • Wave guides.

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