Mett-Bio s an independent testing and analysis division with ISO 17025:2017 accreditation located at Ahmedabad is involved with Corrosion Testing and Failure Analysis since 2013. We are pleased to introduce the Corrosion Test Coupons an inexpensive means of on-line monitoring that will allow you to monitor the corrosion within your systems effectively. Materials life assessment can be easily assessed based on the mile per year corrosion rate of an exposed coupon.

Mett-Bio can help you make coupon in any shape, size and material (viz. ferrous, non-ferrous and elastomeric) you need. Suitable marking can be stencilled on the coupons as-well based on the requirement. Typical Coupons shape manufactured are: Flat Strip Type, Disc Coupons and Cylindrical Coupons. Mett-Bio offers a variety of coupon holders and additionally can design and manufacture custom holders as per requirements..

Compliant With Industry Standards

Every Strip Corrosion Coupon adheres to established NACE and ASTM standards for corrosion testing. Each coupon undergoes strict quality control-from material selection to chemical surface preparation-ensuring it suits even the most demanding corrosion monitoring requirements in various industries.

Versatile Material and Custom Sizes

Choose from Mild Steel, Stainless Steel, Copper, Brass, or Aluminum to match your operational needs. Standard dimensions are 3 inch x 0.75 inch x 1/16 inch, but coupons can be custom-fabricated as per project specifications. This versatility enhances compatibility for diverse industrial applications.

Accurate Measurement and Safe Handling

Each coupon is polished, pre-weighed to an exact tolerance, and uniquely identified with a stamped serial number. With rounded edges for safety and thorough chemical cleaning, the coupons arrive ready for immediate use. Detailed packaging ensures accuracy, traceability, and minimizes contamination risks.

FAQ's of Strip Corrosion Coupon:

Q: How should the strip corrosion coupon be installed in a monitoring location?

A: The coupon can be either hung or fixed inside the vessel, pipeline, or system under study. It should be placed so it encounters representative service conditions, ensuring it experiences the same environment as the asset you wish to monitor.

Q: What is the main purpose of using these corrosion coupons?

A: These coupons are used to evaluate corrosion rates and monitor pipeline or asset integrity in service environments such as industrial pipelines, water plants, and petrochemical facilities. They help determine overall corrosion tendencies through visual inspection and precise gravimetric (mass loss) measurement.

Q: When should the coupons be replaced or inspected during monitoring?

A: Typically, coupons are left in service for a predetermined exposure period set by project requirements-commonly ranging from several weeks to months. After exposure, the coupon is retrieved for visual and mass loss analysis to assess the corrosion rate, after which a fresh coupon can be installed.

Q: Where can these strip corrosion coupons be effectively deployed?

A: They are suitable for onshore and offshore applications, including use in pipelines, pressure vessels, water treatment plants, and refineries. Their corrosion-resistant surface preparation makes them ideal across many industrial environments.

Q: What benefits do pre-cleaned and pre-weighed coupons provide?

A: Pre-cleaned and pre-weighed coupons eliminate preparation errors and improve test accuracy. Serial number stamping and sealed packaging help maintain traceability and integrity, supporting accurate corrosion rate measurements and consistent monitoring results.

Q: How is the corrosion rate determined using this coupon?

A: After a specified exposure period, the coupon is removed, cleaned, and weighed. The mass loss, as measured with a precision balance, provides the data necessary to calculate the corrosion rate for the monitored environment.