• Coupons


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. The weight loss is converted to a corrosion rate (CR) or a metal loss (ML), as follows:

Corrosion Rate (CR) = Weight loss (g) * K .
Alloy Density (g/cm3) * Exposed Area (A) * Exposure Time (hr) .

Refer to attached data sheets for more information on the coupon process, and available products.
Thumb File Name File Size Action
Coupons_Stressed.pdf 1.83MB
Coupons_Welded.pdf 1.34MB
Intro_To_Coupons.pdf 730.78KB
Coupons_Standard.pdf 430.18KB
Coupons_HP.pdf 656.27KB
Coupon_Test_Racks.pdf 251.3KB
Coupon_Insertion_System_Retractable.pdf 613.96KB
Coupon_Insertion_System_Low_Pressure.pdf 582.41KB
Coupon_Holders_HP.pdf 635.09KB
Coupon_Holders.pdf 1.07MB