Corrosion Coupon
Weight loss coupons allow a quantitative measurement of structural corrosion rates in a corrosion monitoring system. Also, in some conditions morphological degradation can be attributed to a specific factor. Corrosion coupons are available in a variety of sizes and types. The size and shape of the coupons are determined by the type of used holder, line size, and placement.
Borna Electronics coupons are stamped with coupon specifications including: serial number, material, size and weight with accuracy of 0.1 mg and are packaged in 1-year vapor phase inhibitor packing within a sealed envelopes.
The surface of standard coupons are glass beaded. Other surface preparations, such as polished or with higher surface roughness are available on request. Borna Electronics can make coupons in any size, shape, or material you need. The company is also ready to produce coupons based on the standard or on the basis of the material sent by the employer, such as a applied pipe.
When ordering test coupons, please be ready to provide the sales person with information regarding the type of material you are testing, the style and size of the coupons you require, surface finish desired, and if applicable, mounting hole size and location.
Post Exposure Coupon Analysis
Considering the occurrence of different types of corrosion on coupons, the calculated corrosion rate is rarely the same as the corrosion observed in the system; because the influence of many factors. The corrosive condition of the system is determined using information obtained from the results of corrosion coupons, corrosion probes and laboratory analysis. The final decision on the operating conditions of the equipment, estimation of residual life and the need for chemical operations such as injection of corrosion inhibitors as well as the rate of their injection into the system are reliable if good initial data is obtained from good monitoring.
Borna Electronics is ready to provide after exposure coupon analysis, including accurate reweighting, coupon appearance and pitting analysis, and mpy corrosion rate calculation in an analytical report.
We are in strict adherence to ASTM-G1 specifications for cleaning and analyzing the coupons.
When using this service, ensure that initial coupon weights, exposure dates, and locations are recorded for each sample. This information can be recorded on the front of our VCI coupon storage bags.
