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NBIC R-Stamp

JTT is a qualified member of the NBIC and holds a valid R-stamp, which is required for ASME code welding repairs. JTT has the ability to supply qualified welders in accordance with the NBIC and ASME requirements as needed for the refractory installation scope of work.

Because JTT has a valid R-stamp, our clients are able to save money and expedite certain aspects of the project by not having to coordinate multiple contracts and work activities.



 Currently, JTT performs code welding repairs in the following industries:

  • Refining
  • Petrochemical
  • Incineration
  • Cogeneration
  • Power