The HMT fabrications facilites (Blackwell, OK and Baytown, TX) are turnkey shops that provide design, manufacturing, engineering services, and outstanding customer support for all aboveground storage tank appurtenances, energy, and maritime industry.

Full in-house capabilities — from engineering and design to production (laser cutting, machining, welding, blasting) and NDE inspection services — help ensure all jobs are completed at the highest industry standards in quality and performance, even with short lead time and quick turnaround.

All HMT’s experienced welders are certified in Carbon Steel AWS D1.1, Aluminum AWS D1.2, and Stainless Steel AWS D1.6 while on-site certified Level II inspectors make sure execution meets design specifications and requirements.

welding progress

Fabrication Capabilities

  • Steel fabrication
  • Laser cutting
  • CNC plasma cutting
  • Waterjet cutting
  • Welding
  • Beveling
  • Plate rolling/angle rolling
  • Pipe rolling
  • Plate beveling
  • Bottom fabrication
  • Tank shell plate fabrication
  • Roof plate fabrication
  • Nozzles & manways
  • Stairs, platforms & rolling ladders
  • Tank wind girders
  • Fire protection/foam piping
  • Floating roof legs & components

In-house NDE Capabilities

  • Level II quality inspections
  • Certified weld inspections (CWI)
  • Radiography
  • Share wave ultrasound
  • Mag particle
  • Ultrasonic testing (UT)
  • Positive material identification (PMI)
  • Penetrating testing (PT)
  • Visual testing

In-house Engineering

  • Design services
  • Detailing services
  • Structural analysis
  • Calculations


Fabricated Items

  • Shop-primed shell plate
  • Shop-built pontoons
  • Floating suctions
  • Roof drain systems
  • Shell nozzles
  • Roof nozzles
  • Thickened insert/assemblies
  • Clean out doors and assemblies
  • Platforms of any size
  • Center columns
  • Shell plate & roof plate
  • Tank accessories
  • Tank egress appurtenances
  • Prefab floating roof pontoons
  • Prefab appurtenances
  • Rolled angle
  • Rolled plate
  • Gauge poles
  • Circulation vents
  • Foam piping systems
  • Foam piping assemblies
  • Foam piping systems
  • Wind girders
  • Spiral stairways
  • Caged ladders
  • Rolling ladders
  • Manways
  • David arms
  • Shell vents
  • Shop-built tanks
  • Rafters, girders
  • Sumps
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