Copper (UNS C70500)

May 24 2013

Topics Covered

Introduction
Chemical Composition
Physical Properties
Mechanical Properties
Applications

Introduction

Copper-nickel (Cu-Ni) alloys are known to possess good corrosion resistance, good strength, and ductility. The nickel content in these alloys enables them to maintain their strength at high temperatures compared to copper alloys that do not have nickel content in them. Absolute solid solubility exists between nickel and copper.

The following datasheet discusses the chemical composition and properties of copper UNS C70500.

Chemical Composition

The chemical composition of copper UNS C70500 is given in the following table.

Element Content (%)
Nickel, Ni 5.8-7.8
Zinc, Zn 0.2 max
Manganese, Mn 0.15 max
Iron, Fe 0.1 max
Lead, Pb 0.05 max
Copper, Cu Balance

Physical Properties

The following table discusses the physical properties of copper UNS C70500.

Properties Metric Imperial
Density 8.9 g/cm3 0.323 lb/in3
Melting point 1100°C 2012°F

Mechanical Properties

The mechanical properties of annealed copper UNS C70500 are tabulated below.

Properties Metric Imperial
Elongation 15-30% 15-30%

Applications

Copper UNS C70500 finds application in:

  • Components for use in seawater environment

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