Fabrication Services

HMT Fabrication Services are available for all aboveground storage tank appurtenances. HMT offers complete flexibility in order to conform to customer’s specifications, standards or custom procedures.

HMT welders are qualified to ASME IX standards and inspection and examination personnel are qualified to ASME V standards.

    HMT’s Fabrication Services Group utilizes these primary welding types:
  • Shield metal arc
  • Flux cored arc
  • Gas tungsten arc
  • Gas metal arc

Complementing the full range of welding capabilities is a complete range of non-destructive examination (NDE) capabilities. Weld examinations can include visual, liquid penetrate, vacuum box, magnetic particle and radiographic to provide high quality appurtenances without concern of possible rework.

HMT uses state-of-the-art equipment like automated welding machines capable of performing multiple weld processes and complex jobs such as intermittent stitch welds on fillet joints as well as computer numerical controlled burning tables. In addition to state-of-the-art equipment, HMT employs fully trained and qualified hand welders.

At HMT, quality, safety and completion times are always top of mind. Let HMT put more than three decades of excellence in the fabrication of appurtenances to work for you today.

  • Handrails - pipe & angle
  • Platforms
  • Staircases - spiral & radial
  • Vertical cage ladders
  • Thickened inserts (designed under guidance from API 650)
  • Rafters
  • Quick draw sumps
  • Roof sumps
  • Carbon steel floating roofs & pontoon sections
  • Retrofit stair treads for rolling ladders
  • Firefighting foam chambers
  • Firefighting foam suppression systems
  • Bleeder vents
  • Gauge pole & gauge pole ladders
  • Negotiator seals for gauge poles & columns
  • Diffusers
  • Leg sleeves
  • Wind girders
  • Floating suction lines
  • Fabrication of underground pipe spools
  • Suction troughs
  • Weirs
  • Gauge hatches
  • Emergency drains
  • Nozzles
  • Goose neck vents
  • Float wells
  • Overfill vents
  • Vent hoods
  • Shafts, flanges
  • Pipe caps & dished heads
  • Galvanized stairs & platforms
  • Application of protective coatings
  • Prefabricated EFR pontoons
  • Shop built tanks
  • Sample funnels 
  • Rolling ladders 

Fabrication Offices: Houston, TX & Blackwell, OK