Corrosion Coupon

Description

Corrosion coupon is a simple yet effective tool for providing a quantitative estimation of corrosion rates occurring in an operating system. They also provide a visual indication of the type of corrosion that may be occurring in the monitored system. So if you want to know more about Corrosion Coupon, please contact our professionals to answer them for you.



Name Metal Corrosion Coupon Access Fitting For Pipeline Testing

Material Stainless Steel 304?Stainless Steel 316?DSS F51?Carbon Steel A105N?Inconel 625

Operating Temperature -20±120

Feature Firstly, easy to operate

Secondly, high Accuracy Long Life

At last, high Efficiency, Low cost

Payment TT/LC

Advantage Firstly, they are lightweight and flexible.

Secondly, nice Injection efficiency.

At last, accurate corrosion testing.

Corrosion Coupon

Strip Coupon – Multihole

Used with low-pressure access equipment or through narrow ports that a standard ¾? wide Corrosion Coupon cannot pass.

The size is 3? x ½” x 1/16? 76.2mm x 19.0mm x 3.2mm

with two 2 mounting holes.

The exposed surface area is 2.65 in2 1,709mm2.

Common pipeline corrosion types

For a long time, most of the corrosion conditions were not identified as early as possible. Or we identified but failed to handle it properly. Or problems that are directly ignored can lead to corrosion. Corrosion has always been a problem, and it will bring huge economic losses. This is also the main application scenario of our Corrosion Coupon



Pipeline damage



Pipeline damage is usually the first indication of a corrosion problem. However, in many cases, such signs of pipeline damage will be obvious for months or years. It’s just that we’ve been ignoring it.

This damage can be very small in the form of pinhole leakage. It can also be disastrous. Because no matter whether the water quality is damaged or the pipeline is replaced, it will bring great economic losses.



Pipeline maintenance

There are various forms of pipeline maintenance. In many cases, the consequences of not facing the corrosion problem are serious. That is to face frequent failures or to carry out continuous maintenance. This will waste a lot of valuable time. Therefore, we should face the problem correctly from the very beginning. This will minimize corrosion damage.

The single failure or multiple failure of a part is often due to the failure to find out the hidden causes. Absolute trust will make us relaxed. But this is also a dereliction of duty. It is known from the corrosion rate data provided by the corrosion coupon. The frequently corroded pipeline is contrary to those obvious physical indicators. Such as pipe thread leakage and high rust deposition. High corrosion conditions continue unabated, resulting in more repair problems.



Pipe thread leakage



The thread of each pipe is an inherent weak point. The loss is that about 50% of the pipe wall is cut off. Leakage at the pipe thread is usually the first sign of corrosion problems. This will prompt us to conduct further investigations. And if it is ignored and no solution is taken. Catastrophic water related losses will occur at all pipe intervals.

For the person in charge of a building or factory, the inherent conditions of a large pipeline trunk line are the most worrying. Because they are all threaded pipes. This usually causes the greatest damage. Even if the pipe wall is thick enough to prevent greater damage. However, high pitting conditions will still lead to the failure of any area of the thread. Although in this case, the water may still continue to pass.

Corrosion problems such as small leakage, dissolution of iron oxide and accumulation of other deposits may occur at the pipe thread. At first, they will be reflected on the outer surface of the pipe. However, in fact, this is an internal corrosion problem.

For those threads where the pipe wall is uneven and under high corrosion conditions. The situation is more dangerous. This is because the uniformity of the pipe wall is reduced. They thus fail to provide an indication of leakage problems. All forms of pipe thread leakage. They all have a potential risk of thread failure.



Electrically induced failure

As long as different metals are connected together, electrochemical corrosion may occur. The corrosion degree depends greatly on the corrosion conditions and the pipeline system.

For example, compared to chilled water or fire fighting system water. This corrosion is more common in open condensate and production water systems. This corrosion often occurs between carbon steel pipes and copper valves. The connection between galvanized carbon steel pipe and copper valve is particularly serious. The blue-green deposits at the valve and the connection between the steel pipe and the steel pipe on the reverse side have no leakage. Which provides a condition for current communication. This is a very common and common corrosion behavior. This may lead to large-scale failure and separation of