On Site Stress Relieving Services

On-Site Stress Relieving Services, LP. is a specialty industrial heat treating company offering portable on-site services to oil & gas processing facilities, refinery and petrochemical plants, power generation plants, fabricating companies, manufacturing companies, and off shore equipment companies. OSR specializes in On-site Post Weld Heat Treating (PWHT) of pressure vessels, welded structures, field fabrications and piping using portable electrical heating and combustion heat treating equipment.