The Post Weld Heat Treatment (PWHT) service offered by Hotwork International, helps improve the weld microstructure, which in turn reduces the residual stresses that often develops during the welding stage. This is crucial to maximize the life of your vessels, pressure tanks, towers, equipment and pipes etc. Our team of engineers and highly experienced specialists is able to perform a wide array of PWHT services for industries like construction, pressure piping, bridges, offshore platforms, storage tanks, pressure vessels, petrochemical plants, refineries, and others.
Our post-weld heat treatment procedure includes software based heat and thermal calculations, band width, weight and wind load analysis and Zick analysis for horizontal vessels and fully comply with the latest welding codes and other mandatory requirements for metals like stainless steel, carbon steel, work-hardened steel, and high alloy steel.
We provide and perform PWHT both at our clients’ sites and our own factories globally. The on-site facilities include specialized furnaces of different sizes, where the weldments are placed for PWHT. Additionally, we also offer businesses the option of our pickup and delivery services.
Strategicaly located hubs globally and highly skilled and experienced PWHT engineers enable us to respond to virtually any request, following highest safety and quality standards and ensuring that all treated surfaces or weldments meet the required welding code requirements.
After treatment, our Non-destructive inspections include, ultrasound, Magnetic particle, Radiographic testing and hardness testing
Partnering with metallurgical laboratories and engineers providing the flexibility to execute all types of pre weld heat treatment procedures with the highest quality assurance.