Corrosion resistant alloy CRA
Corrosion is the gradual destruction of materials (often metals) due to natural processes such as oxidation. It occurs when materials are exposed to the environment and are attacked by liquids or gasses whose actions instigate chemical reactions.
Corrosion resistance is the ease with which materials react to potentially corrosive conditions. Corrosion resistant materials are generally able to withstand deterioration and chemical breakdown.
There are some pure metals (known as corrosion resistant metals) such as gold and platinum that have some natural resistance to corrosion. There are also corrosion resistant alloys (CRAs) created to have corrosion resistance, such as a different types of stainless steel.
An alloy is an impure substance (admixture) comprising a mixture of metals, or a metal to which small additions of other metals and non-metals have been added to give it desired properties. The result is a compound that is likely to be superior in performance to pure metal and may be more economical.
CRAs are particularly important in the gas and oil industries and can be created by combining substances such as chrome, cobalt, iron, nickel, stainless steel, titanium and so on.
[edit] Related articles on Designing Buildings
Featured articles and news
Do you take the lead in a circular construction economy?
Help us develop and expand this wiki as a resource for academia and industry alike.
Warm Homes Plan Workforce Taskforce
Risks of undermining UK’s energy transition due to lack of electrotechnical industry representation, says ECA.
Cost Optimal Domestic Electrification CODE
Modelling retrofits only on costs that directly impact the consumer: upfront cost of equipment, energy costs and maintenance costs.
The Warm Homes Plan details released
What's new and what is not, with industry reactions.
Could AI and VR cause an increase the value of heritage?
The Orange book: 2026 Amendment 4 to BS 7671:2018
ECA welcomes IET and BSI content sign off.
How neural technologies could transform the design future
Enhancing legacy parametric engines, offering novel ways to explore solutions and generate geometry.
Key AI related terms to be aware of
With explanations from the UK government and other bodies.
From QS to further education teacher
Applying real world skills with the next generation.
A guide on how children can use LEGO to mirror real engineering processes.
Data infrastructure for next-generation materials science
Research Data Express to automate data processing and create AI-ready datasets for materials research.
Wired for the Future with ECA; powering skills and progress
ECA South Wales Business Day 2025, a day to remember.
AI for the conservation professional
A level of sophistication previously reserved for science fiction.
Biomass harvested in cycles of less than ten years.
An interview with the new CIAT President
Usman Yaqub BSc (Hons) PCIAT MFPWS.
Cost benefit model report of building safety regime in Wales
Proposed policy option costs for design and construction stage of the new building safety regime in Wales.
Do you receive our free biweekly newsletter?
If not you can sign up to receive it in your mailbox here.