Stress corrosion cracking
Water Treatment for Closed Heating and Cooling Systems (BG 50/2021), second edition, by Dr Pamela Simpson, published by BSRIA in 2021, defines stress corrosion cracking as: ‘a specific form of corrosion that leads to cracking and mechanical failure of stressed brass and stainless steel components when exposed to certain chemical species.’
The Illustrated Guide to Hot and Cold Water Services (BG 33/2014), written by Reginald Brown and published by BSRIA in 2014, in states: ‘Stress corrosion cracking (SCC) is a particular form of corrosion affecting brass and stainless steel that can result in catastrophic failure. For SCC to occur there needs to be a concentration of stress (imposed or residual from manufacturing) and a corrosive agent. In the case of brass components, SCC can be triggered by ammonia or amines concentrating in condensation collecting under the insulation of a chilled water pipe. In principle SCC could also occur in cold water pipework components but no instances of this are known to BSRIA.’
--BSRIA
[edit] Related articles on Designing Buildings
Featured articles
Check out some of the best features and news from Designing Buildings as well as key stories from around the web.
Your views needed - a strategy for the professions, trades and occupations.
Confronting competency, codes, capacity and costs.
The hidden risk in modern construction supply chains.
Construction Management, 10 June
24 months to 14: CITB launches accelerated apprenticeships.
Bridging the gap between clients and contractors
Concerns remain around contractor quality, capability, and delivery.
Construction Management, 10 June.
Heat pumps beat boilers in new home tests.
Building Safety Act implementation in Wales
CIAT to host industry panel on 26 June.
New and updated CLC building safety guidance.
New UK National Buildings Database.
Building Safety Wiki Interviews
Chief executive of the British Woodworking Federation.
Planning condition discharge in England and Wales
A brief explanation from a building compliance expert, with further links.