Thermal Stress Relieving Services

Signal Metal Stress Reliving Oven
Signal Metal Stress Reliving Oven

As a major provider of large-scale fabricated, welded, and machined structures and assemblies, at Signal Metal Industries, Inc. we understand the importance of thermal stress relieving. Welding, burning, and other fabrication processes can cause a build-up of residual stress in steel fabrications, which can lead to stress-corrosion cracking, distortion, and other undesirable effects. By relieving this built up tension in a controlled manner, we reduce the risk of dimensional changes or other quality issues affecting the workpiece during further processing or while in service. Also, stress relieving workpieces prior to machining or grinding enables us to hold the tightest machining tolerances.

Inside our large facility, we have a 17' wide x 33' long x 23' tall thermal furnace with a 75-ton capacity capable of operating from ambient to 1,300° F temperature range. Rail-mounted, car bottom loading allows us to transfer large and heavy welded fabrications into and out of the furnace, while state-of-the-art computer controls enable us to keep exceptional temperature uniformity within tighter than normal set-points. For each run, we provide certified stress relief temperature charts to confirm compliance with ASME and AWS standards.

We use this large capacity oven to stress relieve pressure vessels, weldments, and steel fabrications to improve overall integrity and fatigue life. We offer this as a stand-alone service as well as for our own fabrications. This furnace is routinely calibrated in compliance with ASME standards to optimize performance and ensure system accuracy.

For more information about our stress relieving capabilities and its importance for your application, contact us today.

Request Quote

Thermal Stress Relieving Capabilities

Stress Relieving Furnace
Thermal (ambient to 1,300ºF) Rail Car Bottom Furnace
Capabilities Applied / Processes
AWS D1.1
Thermal Stress Relieving
  • 17' wide x 33' long x 23' tall
  • 150,000 lb. capacity with car bottom loading
  • State-of-the-art computer controls
  • Capable of special runs with tighter than normal temperature spreads
  • All runs produce certified stress relief temperature charts
In Process Testing / Inspection Performed
Certified Stress Relieve Chart
Equipment Calibrated (per ASME)
Industry for Use
Pressure Vessel
Power Generation
Steel Fabrication
Industry Standards