+27 16 423 7731
Ceramic Pad Preheater (CPP) elements for preheating and hydrogen diffusion heat treatments prior to welding. Flexible design is ideal for curved or flat pipework, vessels, and fabricated components.
Scroll to view all images
The Ceramic Pad Preheater (CPP) Element is a high-flexibility resistance heater specifically developed for preheating and hydrogen diffusion heat treatments associated with welding. Thanks to their flexible design, these elements can be effectively applied to both flat and curved surfaces across a wide range of fabricated components (Supplier: Incertech).
The ability to conform to complex shapes is the core benefit of the CPP element. This flexibility ensures uniform heat distribution over longitudinal and circumferential weld seams, which is essential for successful welding procedures. By accurately controlling the temperature before and immediately after welding, CPP elements mitigate the risk of hydrogen-induced cracking and ensure the required material properties are maintained.
Preheating weld seams and maintaining interpass temperature during welding, as well as conducting hydrogen diffusion (soak) and Post Weld Heat Treatment (PWHT) on pipe and vessel fabrication.
| Characteristic | Details |
|---|---|
| Heater Type | Flexible Ceramic Pad (CPP) |
| Application | Preheating, Hydrogen Diffusion, PWHT |
| Flexibility | High (Conforms to Curvature) |
| Supplier SKU | MKT-0006 |
Used with standard heat treatment transformers and temperature controllers. Compatible with Type K thermocouple circuits for temperature feedback and control.
1 x Ceramic Pad Preheater Element (CPP).
CPP Heater, Preheater Mat, Flexible PWHT Heater, Weld Preheater.
This is a low-temperature soak period applied immediately after welding to allow any trapped hydrogen within the weld metal to safely diffuse out, which is a necessary step to prevent delayed hydrogen cracking in certain steels.
CPP elements are typically held in firm contact with the workpiece surface using high-temperature insulation pins, ceramic studs, or binding/banding wire to ensure maximum heat transfer efficiency.
Yes, due to their robust construction and ability to achieve the necessary high temperatures, CPP elements are fully suitable for the high-temperature cycles required for stress relieving (Post Weld Heat Treatment).
**Errors and omissions excepted (E&OE)
Need Assistance? Contact Us.
Ceramic Pad Preheater (CPP) elements for preheating and hydrogen diffusion heat treatments prior to welding. Flexible design is ideal for curved or flat pipework, vessels, and fabricated components.