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What are corrosion coupons

Crystal's Corrosion coupons from India are an efficient tool for quantitatively estimating the corrosion rates occurring in an operating system. They also offer a visual indication of the type of corrosion that may be occurring in the system being monitored.

Welcome to world-class corrosion coupons from Crystal Industrial in Qatar

Crystal's Corrosion coupons from India are an efficient tool for quantitatively estimating the corrosion rates occurring in an operating system. They also offer a visual indication of the type of corrosion that may be occurring in the system being monitored.

What is a CORROSION COUPON?

  • Is essentially a piece of metal of a predetermined size, shape and surface area
  • Is a metal with chemical composition that's identical to that of the process equipment
  • Provides a uniform reproducible surface finish
  • Has a unique serial number
  • Is exposed to the same corrosive medium as the process equipmen
  • Is exposed to the corrosive medium for a fixed period of time
  • Gives visual indication of the type of corrosion
  • Indicates the rate of corrosion

Every Crystal coupon is stamped with an identifying serial number, and every coupon order is delivered with written certification that includes : serial number, material made from, weight and dimensions.

All Crystal coupons are weighed to up to four (4) decimal places, packaged individually in vapour phase inhibited envelopes and sealed hermetically to offer a one (1) year shelf life.

Crystal standard coupons are grit-blasted and besides, they are furnished with insulation for mounting. Mounting hardware is provided along with the coupon holder. Coupons are available in options of Polished, Ground or Weld bead

Crystal Coupons are manufactured from any material and dimension as per client's request. Material may be supplied by the customer to match an existing system.

corrosion coupons IN Qatar

corrosion-coupons
Strip Coupon
19 mm wide commonly strip coupons supplied for most evaluations. The size is 76.2mm x 19mm x 3.2mm with two mounting holes the exposed surface area is 3000 mm2.
corrosion-coupons
Disc coupons
These circular coupons are used where coupons cannot protrude into the line and interfere with flow or pig passage. Standard size is Ø 31.8mm x 3.2mm. A hole allows for mounting with flathead screw and back-up disc insulation. The exposed surface area is 1,548mm2.
corrosion-coupons
Rod Coupons
This pencil-like coupon is screwed into an insulator which is then screwed into an NPT plug Coupon Holder. The rod coupon standard size is Ø 6.3mm x 101.6mm. One end is threaded for screwing the coupon into the insulator. The exposed surface area is 2,109mm2.
corrosion-coupons
Access Fitting
Access Fitting are specialized piping arrangements which permit internal access to production plant vessels and pipework operating under full process conditions. The corrosion monitoring industry standard for such access systems is based on a 2-inch nominal bore design.