Description

What are Corrosion Coupons?

Corrosion coupons, also known as coupons, are small metal samples used to assess corrosion. Various industries, like oil and gas, chemical processing, and water treatment, use these coupons. They track the corrosion of pipelines, tanks, and other equipment.

Manufacturers make the coupons from the same material as the system being monitored. These coupons experience the same environmental conditions as the system components. They simulate the system’s corrosion, allowing operators to monitor rates and identify issues early.

Corrosion coupons come in various shapes and sizes, depending on the specific application. They can be flat, disc-shaped, or rod-shaped, and range in size from a few millimeters to several inches. Operators insert the coupons into the system being monitored and leave them in place for a predetermined period, usually between 7 and 90 days. During this time, the corrosive environment exposes the coupons, which experience the same corrosive effects as the system components.

After the coupons have been in place for the designated period, they are retrieved and analyzed to determine the extent and severity of the corrosion that has occurred. The analysis can involve visual inspection, weight loss analysis, or electrochemical methods, depending on the specific needs of the application.

Overall, corrosion coupons are an important tool for monitoring corrosion rates and identifying potential issues before they become more severe. They provide valuable data that can be used to optimize maintenance and corrosion prevention programs and to extend the lifespan of equipment and infrastructure.

Selection Model

Parameters Corrosion Coupons For Corrosion Testing