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..

Monitor Corrosion with Precision and Flexibility

The Weld Corrosion Coupon facilitates accurate assessment of corrosion rates in welded areas of pipelines and vessels. With its customizable material, shape, and mounting options, it adapts to your specific environment and operational requirements. Its physical installation and coded identification enable easy retrieval and data logging, making it invaluable for routine corrosion monitoring and maintenance planning.

Durable Construction Meets Industry Standards

Constructed from certified alloys per NACE/ASTM standards, the coupon features a machined weld bead and a robust design. Laser-engraved markings guarantee permanent traceability, while vacuum-sealed individual packaging preserves quality. Each batch is supplied with inspection certification, ensuring compliance and verification for quality assurance.

FAQ's of Weld Corrosion Coupon:

Q: How is the Weld Corrosion Coupon installed and used in monitoring corrosion?

A: The coupon is manually mounted using brackets, racks, holders, or custom fixtures directly in the desired location, such as within pipelines or vessels at welded joints. It is physically installed for a specified period, then retrieved for gravimetric analysis to determine corrosion rates.

Q: What types of corrosion does the coupon help monitor?

A: This coupon is engineered to monitor uniform, pitting, crevice, and intergranular corrosion, providing comprehensive insight into corrosive activity in welded zones.

Q: When should the coupon be inspected or retrieved from service?

A: Inspection or retrieval frequency is user-definable but commonly performed weekly, monthly, or quarterly, depending on operational corrosion monitoring needs and industry best practices.

Q: Where can the Weld Corrosion Coupon be applied?

A: It is designed for use in pipelines, pressure vessels, and other industrial systems where welded joints are present and corrosion monitoring is required.

Q: What is the process after retrieving the corrosion coupon?

A: After retrieval, the coupon undergoes a gravimetric analysis to measure weight loss, which is then used to calculate corrosion rate in mils per year (mpy), with high resolution and accuracy.

Q: What are the benefits of using this coupon for corrosion monitoring?

A: Benefits include customizable material and size, accurate corrosion rate determination, permanent identification, compliance with industry standards, and long, indefinite shelf life under proper storage.

Q: How many specimens can be used per monitoring location?

A: Typically, one coupon is installed per location, but the specimen number and size can be customized according to your monitoring strategy and requirements.