Steel Corrosion Test

Project Scope: A client requested evaluation of potential corrosion caused by filter cake material on steel surfaces. A candidate thermal processor raised concerns about potential damage to their equipment if this material was processed.

Material Background

The filter cake contained mildly acidic components, raising concerns about corrosion during storage or transport in contact with steel.

Services Provided

Conti Testing Laboratories designed and executed a custom corrosion study to simulate real-world contact conditions:

• • Steel coupons were embedded in moist filter cake and sealed in a plastic container for 50 hours.
  • Weight loss and surface finish changes were measured post-exposure.
  • Visual inspection documented color changes and corrosion development.
  • A proprietary custom method was developed in tandem with the client to meet the bespoke needs of the project.

Results and Impact

• The test confirmed the filter cake is corrosive to steel under sealed contact conditions.
• Coupons exhibited measurable weight loss, dulling of finish, and visible corrosion within 50 hours.
• The brown filter cake turned black where in contact with steel, indicating active chemical interactions.

This testing provided the client with clear, actionable evidence to support mitigation planning during storage and transport, helping prevent equipment damage and unplanned maintenance costs.