Welcome
Midland Corrosion / Midland Corrosion Associates* is a leading provider of corrosion consultancy services to industry. Our corrosion testing laboratories at Rowsley, Derbyshire is the central location from which we deliver a cost-effective, professional service to organisations across the UK.
We provide a comprehensive range of services including:
- Corrosion Consultancy
- Corrosion Testing
- Water Analysis
- DWTA Evaluation Test for Chemical Inhibitors for Central Heating Systems
- Plumbing System Investigation
Midland Corrosion Associates (MCA) works with organisations of all sizes across a broad range of sectors. Please see our client list for examples.
Case Studies & Papers
- Erosion Corrosion in Copper Plumbing Systems
- Microbially Assisted Pitting Corrosion (MIC) in Nursing Home Plumbing
- Corrosion – Its Causes and Prevention in Heating & Cooling Systems
- Corrosion of Copper and Copper Alloys in Plumbing Applications
Latest Tip: Corrosion of Copper Alloys
Copper alloys such as brasses (Cu/Zn alloys), bronzes (Cu/Sn alloys) and Copper Nickel alloys are widely used in industrial and domestic applications.
Brasses are generally immune to general corrosion but can suffer from stress corrosion cracking in ammonia containing water. Brasses containing 20-40% zinc are highly susceptible to SCC. Alloys containing more than 15% zinc may also undergo dezincification in which the zinc rich β phase is dissolved leaving a weak, porous structure behind. The dezincification can be of the plug or layer type. Dezincification resistance can be improved by increasing the copper content or adding small amounts of arsenic, antimony or phosphorous. Specifying a DZR brass or gun-metal (a copper-tin-zinc-lead alloy) will mean that the risk of dezincification is exceedingly low.
* Midland Corrosion and Midland Corrosion Associates are trading names for Corrosion and Environmental Services Ltd.