Resource Library

Copper Alloys in Seawater: Avoidance of Corrosion - Pub 225

Corrosion of copper alloys in seawater can be mitigated. This publication offers practical guidance on alloy selection, design and preventative measures and has been written principally for marine, mechanical and other engineers who have to select materials of construction but do not have a corrosion background. 2018. 20 pp.

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Brass is said to be non-magnetic, but a sample reacts to a magnet. Why?

Probably due to the high iron content from recycled scrap. If a non-magnetic copper alloy is required use a nickel aluminium bronze to Def Stan Specifications (were NES).

Pub 826 - Copper Pipework Services in Modern Buildings - A Specifier's Guide

This publication, aimed at material specifiers, details the many reasons why copper is the number one material for pipework services. In addition to the information on copper tube and fittings, there is environmental information on copper, its sustainability and recyclability. 2009. 12pp

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Pub TN44 - Machining Brass, Copper and Copper Alloys

Detailed advice on machining as a production technique. Guidance on materials selection where good machinability is important. Basic information and guidance for those who know what material is to be machined. Advice on the selection of cutting fluids. 1992. 65pp.

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Pub071 - The Nickel-silvers

Nickel silvers are silver/white coloured copper alloys with varying additions of zinc and nickel. This publication gives information on mechanical properties, typical applications, joining techniques, heat treatment, fabrication, surface finishing. 1965. 27pp.

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Can brass be used for architecture?

Yes, brass and bronze alloys are available.

Can brass fittings be cleaned with industrial cleaners?

Yes, but not cleaners that contain ammonia.

Can chrome plated copper tube be formed into a bend?

Yes, with care and the correct procedure.

Can copper and copper alloys be hardened by heat treatment?

Some alloys can, including copper-beryllium, copper-chromium and copper-nickel-silicon. Most unalloyed coppers and brasses can only be softened by heating.

Can copper be used for refrigeration pipelines?

Yes. Copper tubes do not become brittle at low temperatures. The relevant standard is ‘Seamless round tubes for air conditioning and refrigeration’, BS EN 12735: 2010 Part 1: Tubes for Piping Systems, Part 2: Tubes for Equipment.

Can copper-nickels be brazed?

Yes they can be brazed by all processes. Appropriate silver brazing alloys should be used as phosphorus bearing brazing alloys cause a reaction with nickel to form a brittle phosphide phase.

Can copper-nickels be welded directly to steel?

Yes they can using appropriate 65% nickel-copper consumables to avoid iron dilution effects.