Flat Coupon Surface Area Calculator | Cassidy Corrosion Control

Surface area calculator (in square inches) for a flat coupon. Useful for calculating corrosion rates and weight losses. Try it! Home. Curved Pipe Coupon. Cylindrical Coupon. Corrosion Weight …

FAQs about Flat Coupon Surface Area Calculator | Cassidy Corrosion Control Coupon?

How is corrosion rate calculated using corrosion coupons?

The corrosion rate calculated using corrosion coupons assumes uniform corrosion across the coupon (e.g. uniform corrosion of the pipe wall at the monitoring point). This approximation is acceptable for most circumstances to determine the average rate of corrosion. ...

What is a corrosion coupon worksheet?

Worksheets can be printed, saved individually, or saved to a database file. The Corrosion Coupon Worksheet is a simple, step-by-step method for calculating metal loss and corrosion rate from weight loss coupons. The user is prompted for alloy density, coupon dimensions, and exposure data. ...

How do you calculate corrosion rate?

By dividing both sides of the equation by the coupon surface area, this gives the corrosion rate as equal to a constant multiplied by the current density (amp) / area (cm2). In other words, the rate of weight loss from a given area is directly proportional to the current density. ...

How do you convert a blank coupon to a corrosion rate?

Any weight loss suffered by the blank coupon should be converted to a corrosion rate expressed in mpy and be subtracted from the corrosion rate of an exposed coupon to give a corrected corrosion rate in mpy for the exposed coupon. 1. Ultrasonic Cleaning: Degrease coupons in benzene, toluene or carbon tetrachloride. ...

How do you estimate corrosion losses?

The simplest, and longest-established, method of estimating corrosion losses in plant and equipment is weight loss analysis. A weighed sample (coupon) of the metal or alloy under consideration is introduced into the process, and later removed after a reasonable time interval. The coupon is then cleaned of all corrosion product and is reweighed. ...

Are corrosion coupons effective?

Corrosion coupons are an inexpensive, effective method for monitoring the corrosion rate in any system or structure. However, obtaining meaningful results from these tests is not always as simple as measuring the weight loss and calculating the uniform corrosion rate. ...