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..

Versatile Material and Surface Options

Available in SS316, carbon steel, or custom material as per project requirement, these coupons are machined to deliver a polished or ASTM-standard surface finish to suit demanding test protocols. The adaptability in material and finish ensures compatibility with a broad spectrum of industrial applications and corrosion environments.

Comprehensive Compliance and Customization

Stress Corrosion Coupons meet major industry standards such as ASTM G36, ASTM G38, and NACE TM0177, offering reliable test results. Customers can specify configuration requirements including connection type, size, surface finish, and capacity, allowing each coupon to be tailored for particular corrosion monitoring programs.

Precision and Ease of Use

Engineered for both ease of installation and retrieval, these coupons support weight loss, visual, and analytical monitoring and allow straightforward post-test analysis. They feature a digital or analog display with a 1% accuracy and 0.01 mm resolution for clear, reliable results under variable test conditions.

FAQ's of Stress Corrosion Coupon:

Q: How is a Stress Corrosion Coupon installed and used?

A: The coupon can be installed via threaded or welded connections, mounted using brackets or clamp-on systems. Once installed in the targeted environment, it is exposed to operational conditions and later retrieved for weight loss, visual, or analytical assessment to monitor corrosion or SCC.

Q: What materials and surface finishes are available for Stress Corrosion Coupons?

A: Coupons are available in SS316, carbon steel, or other materials per customer specification, with surface finishes either polished or conforming to ASTM standards. This ensures suitability across various environments and compliance with project requirements.

Q: When should Stress Corrosion Coupons be used for monitoring?

A: Deploy coupons during routine maintenance cycles or new asset commissioning to assess environmental susceptibility to stress corrosion cracking or general corrosion. Their use is vital in pipelines, tanks, and vessels where early detection is critical.

Q: Where are Stress Corrosion Coupons typically applied?

A: These coupons are used in industrial laboratory tests and field applications, such as within pipelines, process vessels, storage tanks, or any infrastructure where corrosion or SCC monitoring is essential for safety and asset integrity.

Q: What is the process for analyzing results from Stress Corrosion Coupons?

A: After retrieval, coupons are cleaned and measured for weight loss, visually inspected for surface changes, and may be analyzed using standard analytical methods. This data provides insight into corrosion rates and material performance under test conditions.

Q: What are the main benefits of using Stress Corrosion Coupons?

A: Benefits include robust corrosion monitoring, ease of installation and retrieval, compliance with international standards, and accurate detection of SCC and general corrosion. They help optimize maintenance schedules and improve safety by providing early warning of material degradation.

Tell us about your requirement