Copper (UNS C19210)

May 17 2013

Topics Covered

Introduction
Chemical Composition
Physical Properties
Mechanical Properties
Thermal Properties
Fabrication
Applications

Introduction

A copper alloy is an alloy with copper as its primary metal, which is mixed with different alloying elements to provide a range of materials designed to maximize characteristics such as ductility, strength, machinability, formability, or electrical conductivity.

UNS C19210 copper alloy possesses good corrosion resistance in natural atmosphere, industrial atmosphere as well as sea atmosphere. This alloy has better abrasive corrosion resistance than UNS C19210 when exposed to different waters and neutral saline solutions. Likewise it is resistant to stress corrosion cracking.

The following datasheet discusses the chemical composition and properties of copper UNS C19210.

Chemical Composition

The chemical composition of UNS C19210 copper is outlined in the following table.

Element Content (%)
Iron, Fe 0.05-0.15
Phosphorous 0.025-0.04
Copper, Cu Balance

Physical Properties

The following table discusses the physical properties of copper UNS C19210.

Properties Metric Imperial
Density 8.94 g/cm3 0.323 lb/in3
Melting point ≤ 1082 °C ≤ 1980°F

Mechanical Properties

The mechanical properties of copper UNS C19210 are tabulated below.

Properties Metric Imperial
Tensile strength 345 MPa 50000 ksi
Yield strength 330 MPa 47900 ksi
Modulus of elasticity 125 GPa 18100 ksi
Elongation 13 % 13 %
Machinability 20 20

Thermal Properties

The thermal properties of copper UNS C19210 are tabulated below.

Properties Metric Imperial
Thermal expansion co-efficient (@20-300°C/68-572°F) 16.9 µm/m°C 9.39 µin/in°F
Thermal conductivity 28 W/mK 200 BTU in/hr.ft².°F

Fabrication

Welding - Soldering, brazing, and coated metal arc welding of copper UNS C19210 is rated as excellent. This alloy can also be welded using butt, resistance, and oxyacetylene welding; however gas-shielded arc, spot, and seam resistance welding should be avoided.

Cold working- The capacity of UNS C19210 for being cold worked is considered as excellent.

Applications

Copper UNS C19210 finds application in:

  • Connector pins
  • Lead frames used in power transistors
  • Components for the electrical industry
  • Air conditioner heat exchanger tubing.

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