logo
logo
Sign in

Top Field Tests For Corrosion Assessment

avatar
IWL India
Top Field Tests For Corrosion Assessment

You might have heard about the laboratory tests for corrosion assessment. Well, there are field tests as well that ensure the pipelines, storage tanks, and heat exchangers are corrosion resistant. These tests are performed by making specimens of the testable materials, and then positioning them in the existing environments. These specimens stay in the environment for a specific time period and are then removed for evaluation. Following are the top field tests for corrosion assessment.


Top Field Tests For Corrosion Assessment


1. Corrosion Coupons: The corrosion coupon installation is an easy method of evaluating corrosion in storage tanks and pipelines. During the installation, the coupons are inserted into the equipment using a holder, especially in those areas that are severely prone to corrosion. Once the coupons are restored, the change in weight or size is considered to know the corrosion resistance of the equipment. 


2. Ultrasonic Thickness Gauge: This gauge is used to observe the internal corrosion of pipes and storage tanks. The ultrasonic transducer produces a sound wave that travels to the back wall and reflects back to the starting point. By measuring the reflection time and considering the sound waves’ velocity in the pipe, its thickness is determined. To give additional protection to the pipelines against corrosion and after the field tests, contractors use anti corrosion pipe wrapping tape.


3. Electric Resistance: When the metal corrodes, there is an increase in its electric resistance. This happens due to a reduction in the cross area’s thickness or surface area. Here corrosion rate is determined in millimeters per year by measuring the change in electric resistance of the metal over a certain period of time. Electric resistance probes are used here to measure the corrosion rate of coupons in this field test.


End note

IWL India is a leading and trustworthy name among the manufacturers of anti-corrosion pipe tapes, and other construction materials like polysulphide sealant, adhesives, paints, waterproofing membranes, etc. Get in touch to source a wide range of construction materials for your projects.

collect
0
avatar
IWL India
guide
Zupyak is the world’s largest content marketing community, with over 400 000 members and 3 million articles. Explore and get your content discovered.
Read more