There are no size limits or restrictions on the samples that can be produced by Top Notch. Samples can be up to five inches thick and six feet tall down to small bore tubing. We can weld a wide range of materials with welding capabilities from


  • SMAW
  • SAW
  • GMAW
  • FCAW
  • MANUAL and fully Automated GTAW


Top Notch EDM manufactures a wide range of

code compliant demonstration blocks


  • ASME Section VIII procedure qualification samples that meet mandatory appendix IX of section V
  • ASME article 14 procedure qualification samples for intermediate and high rigor detection test
  • ASME B31 Code case 181 qualification samples
  • DNV-OS-F101, & DNV-RP-F118 project specific AUT qualification samples (Metallurgical Sectioning and statistical analysis reporting available with Nordtest Models)
  • AWS D1.1 Technician qualification samples
  • API RP2X Technician qualification samples
  • API 620 Appendix U AUT in lieu of RT qualification samples