---
title: "C102 Copper 102 Busbar"
description: "C102 copper busbar — 100% IACS conductivity. Technical data, specs & pricing."
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C102

# Copper 102 – Oxygen-Free (OF)

C10200

## Overview

Copper 102 is an oxygen-free high-conductivity copper produced by induction melting under non-oxidizing conditions. With a minimum 99.95% copper content and a maximum of only 10 ppm oxygen, Copper 102 is free from hydrogen embrittlement when heated in reducing atmospheres. This makes it the preferred choice for applications involving brazing, welding, or service in vacuum/reducing environments.

### Chemical Composition

Element

Min

Max

Copper (Cu)

99.95%

—

Oxygen (O)

—

0.001% (10 ppm)

### Alloy Designations

UNS C10200 

DIN 2.0040 

BS 2871 C103 

EN CW008A 

ASTM B187, B152, B188 

### Mechanical Properties

Tensile Strength (½ Hard) 42 ksi (290 MPa) 

Yield Strength (½ Hard) 36 ksi (248 MPa) 

Elongation (½ Hard) 14% 

Rockwell Hardness (½ Hard) 40 HRB 

Shear Strength 26 ksi (179 MPa) 

Fatigue Strength 13 ksi (90 MPa) 

### Physical Properties

Density 8.94 g/cm³ 

Melting Point 1,083°C (1,981°F) 

Electrical Conductivity 100% IACS 

Thermal Conductivity 391 W/m·K 

Coefficient of Thermal Expansion 17.0 × 10⁻⁶ /K 

Modulus of Elasticity 117 GPa 

## Typical Applications

-   Vacuum tube and electronic components
-   Waveguides and microwave components
-   Busbars in reducing atmosphere environments
-   Superconductor stabilizers
-   HVAC and refrigeration tubing
-   Chemical process equipment
-   High-reliability electrical connections

## Fabrication & Joining

-   Excellent ductility for cold forming
-   Free from hydrogen embrittlement when heated
-   Excellent brazing and welding characteristics
-   Not recommended for: coated metal art, spot, seam, or resistance welding
-   Superior formability compared to ETP grades

## Need C102 Copper Busbar?

Contact our sales engineers for a custom quote on C102 (C10200) copper busbar — tailored dimensions, tempers, and finishing options for your exact specifications.

[Request a Quote](/contact)

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