Post-Weld Heat Treatment & Stress Relieving
"Relieving stress and a whole lot more"
Welds that don’t meet code requirements aren’t just expensive problems—they’re dangerous ones. Cracking, stress concentrations, and premature failure can shut down operations and put people at risk. That’s where Post Weld Heat Treatment (P.W.H.T.) and stress relieving come in, ensuring your welds perform reliably for the long haul.
At Norweld, we’ve been handling heat treatment challenges across Northern Alberta and BC since 1994. Every job site is different, and our team brings the right equipment and expertise directly to your location. When you need it done right, we show up prepared.
Complete Heat Treatment Solutions
Mobile Units for Localized Heat Treatment
Our mobile heat treatment units bring the heat directly to your site to help keep the work flowing. These units are equipped to handle precise temperature control and documentation requirements, whether you’re dealing with pipeline repairs or pressure vessel modifications.
Furnace and Oven
For components that require controlled atmosphere heat treatment, our furnace and oven ensure uniform heating. We handle everything from small fittings to large structural components, maintaining the precise temperature profiles your specifications demand.
Gas Burners and One-Shot Fires
Quick heat application for localized repairs and modifications. Our gas burner systems provide controlled, efficient heating for situations where full heat treatment cycles aren’t required but targeted thermal application is needed for joint integrity.
Specialized Applications
Hydrogen Degassing and Hydrogen Bake Out
Hydrogen embrittlement is a serious concern in high-strength steel applications. Our hydrogen bake out procedures remove trapped hydrogen from welds and heat-affected zones, preventing delayed cracking and ensuring long-term joint reliability. We follow proven protocols with proper documentation to meet your quality requirements.
Pre-Heat and Post-Heating
Proper thermal management before and after welding prevents cracking and ensures optimal mechanical properties. Our crews understand the critical temperature ranges for different materials and applications, providing consistent pre-heat application and controlled cooling rates that meet code requirements.
Post-Weld Heat Treatment and Stress Relieving
The cornerstone of our heat treatment services. P.W.H.T. relieves residual stresses, improves ductility, and ensures your welded joints meet the mechanical properties specified in your design codes. Whether you’re working with carbon steel, low alloy, or stainless steel systems, we have the equipment and expertise to handle your specific requirements.
Refractory Bakeout and Drying
Proper refractory conditioning is critical for safe startup and long-term performance. Our controlled bakeout procedures remove moisture and volatile compounds from refractory linings, preventing thermal shock and ensuring your furnaces, boilers, and process equipment operate reliably from day one.
CONTACT OUR TEAM
CALL Norweld for Heat Treatment SOLUTIONS
Local Expertise
When you have a critical repair or scheduled maintenance window, we’ve got your back. Our team is equipped to respond quickly with everything needed to complete the job.
Safety & Reliability
Thirty years of field experience with COR certification and ISN membership. We understand the unique hazards of working with high-temperature equipment in industrial environments.
Compliance Excellence
We provide documentation, including temperature charts, holding time records, and cooling rate data that satisfy inspector requirements and support your quality programs.
