Copper (UNS C50700)

May 21 2013

Topics Covered

Introduction
Chemical Composition
Physical Properties
Other Designations
Applications

Introduction

Phosphor bronzes are copper alloys and are designated as UNS C50100 to C54200. The addition of small amounts of phosphorus to the copper alloy further increases the hardness, wear resistance and fatigue resistance.

Copper UNS C50700 alloy has a good combination of strength and ductility with excellent spring qualities.

The following datasheet discusses the chemical composition and properties of copper UNS C50700.

Chemical Composition

The chemical composition of UNS C50700 copper alloy is displayed in the following table.

Element Content (%)
Tin, Sn 1.5 - 2
Phosphorus, P 0.3 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 C50700.

Properties Metric Imperial
Density 8.8 g/cm3 0.321 lb/in3

Other Designations

Equivalent material to copper UNS C50100 alloy is ASTM B105.

Applications

Copper UNS C50700 finds application in the following:

  • Springs
  • Shafts
  • Fasteners
  • Valve spindles
  • Masonry fixings
  • Gears and bearings.

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