Corrosion coupons are flat or cylindrical pieces of metal that can be installed in nearly any accessible location in the system.
They are mounted on the appropriate coupon holder and usually placed within an ageing cell, but at times, directly in the flow line at the rig site. Testing is based on the identical principles as the corrosion rings. A simple formula gives a corrosion rate per year.
Corrosion coupons are strip shaped or cylindrical pieces of metal that can be installed in nearly any accessible location in the system.
They are mounted on the appropriate coupon holder and usually placed directly in the flow line and used to calculate a corrosion rate.
| MODEL NO. | SIZE (DIA X T) 'mm' (A) | HOLE DIA 'mm' (B) | HOLE LOCATION FROM END 'mm' (C) | COUPON MATERIAL (D) | ||||
|---|---|---|---|---|---|---|---|---|
| STCC | 75 X 20 X 3 THK | 7 MM | 10 MM |
|
