Corrosion Resistant Alloy (Buy Online from Stock)
Corrosion Resistant Alloys (also known as CRAs) provide essential long-term corrosion resistance to various components which are exposed to environments associated with oil and gas production.
A corrosion-resistant alloy (CRA) is an alloy consisting of metals such as:
There are many different Corrosion Resistant Alloys to choose from and are usually categorised according to their resistance levels when exposed to particular environments.
Some key environmental parameters which play a part in influencing the corrosion properties of Corrosion Resistant Alloys include:
Partial pressure CO2
Whether sulphur is present or absent
Chloride ion concentration
Partial pressure H2S
The above parameters can influence:
The passive film’s stability (initiation of general corrosion or pitting)
Repassivation ease of initiated pits
Dissolution rates or metal from pits
The Stress Corrosion Cracking (SCC) risk, initiating and propagating
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