Copper (UNS C69430)

May 23 2013

Topics Covered

Introduction
Chemical Composition
Mechanical Properties
Other Designations
Applications

Introduction

Copper is one of the most useful metals known to man and has been in use for thousands of years. Copper alloys are immensely popular in myriad fields due to their unique properties and because they can be made into strips, rods, plates, tubes, sheets, pipes, foils, forgings, extrusions, wires, and castings from foundries.

The following datasheet discusses the chemical composition and properties of copper UNS C69430.

Chemical Composition

The chemical composition of UNS C69430 copper alloy is outlined in the following table.

Element Content (%)
Copper, Cu 80-83
Silicon, Si 3.5-4.5
Lead, Pb 0.3
Iron, Fe 0.2
Arsenic, As 0.03-0.06
Zinc, Zn Balance

Mechanical Properties

The mechanical properties of copper UNS C69430 are tabulated below.

Properties Metric Imperial
Tensile strength 689 MPa 100 ksi
Yield strength 393 MPa 57 ksi
Elongation 21% 21%
Hardness, Rockwell B 95 95

Other Designations

An equivalent material to UNS C69430 copper alloy is ASTM B371.

Applications

Copper UNS C69430 finds application in:

  • Valves Stems
  • Fasteners
  • Bolts

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