Heat Treatment

Versa Integrity Group, Inc. has grown to include our newly integrated Heat Treatment Division that will accompany our other NDE, inspection, and reliability services.

Welding Pre-Heat Treatment

What is Welding Pre-Heat?

Welding Pre-Heat is a process that reduces the inherent risks of hydrogen cracking, shrinkage stresses, and resulting damage mechanisms that occur because of uncontrollable factors while welding. Welding Pre-Heat works by heating the parent metals (adjacent metals being joined) to reduce the likelihood of stress cracks in the rapid heating and cooling process.

  • Advantages

    • Reduces rapid cooling that can cause residual stress
    • Materials with high thermal conductivity are penetrated more effectively
    • Reduction in hydrogen cracking
    • Reduction in later downtime associated with damage mechanisms
  • Common application of Welding Pre-Heat Treatment

    • Any welding situations where the possibility of residual stress is critical
    • High performance steel components
    • Pipeline weldments
    • Pressure vessel weldments
    • Easier future machinability

Post-Weld Heat Treatment

What is Post-Weld Heat Treatment?

Quite similar to welding pre-heat treatment, post-weld heat treatment is a process that again, attempts to reduce the risk of damage mechanisms occurring as the result of welding materials. The factors that influence utilizing post-weld heat treatment are also relatively synonymous with welding pre-heat treatment.

  • Advantages

    • Reduce the risk of Hydrogen Cracking
    • Minimize residual stresses
    • Increase the strength of the weldment
    • Reduce effects of other damage mechanisms
  • Common Applications of Post-Weld Heat Treatment

    • Pipeline weldments
    • Improve machinability of parts
    • Pressure vessels weldments
    • High performance steel components

Refractory Dry Out

What are Refractory Dry-Outs?

Refractory Dry-out is a process by which heat is applied to a refractory to remove existing water that is present in the material, and complete the chemical reaction process of the material. This process is utilized as a result of refractories typically being rammed, gunned, or casted in the field

  • Advantages

    • Reduction in failure rate of the refractory lining
    • Minimization of later shutdowns
    • Improved lining life
    • Reduction of Refractory spalling on start up
  • Common Applications of Refractory Dry-Out

    • Steam generating boilers
    • Furnaces
    • Incinerators
    • Reactors
    • Aluminum melter and holders

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