Wiltsie holds the following ASME and NB code stamps:

{S} Pressure Part Fabrication, Pressure Piping Assembly & Power Boiler Assembly
{U} Unfired Pressure Vessel Assemblies
{R} Repairs and Alterations to Fired and Unfired Pressure Vessels
{NB} National Board of Pressure Vessel Inspectors

Steel Fabrication

As a major steel fabricator in the northeast, Wiltsie’s steel fabrication division provides specialist experience in steel products for customers nationwide. Serving a variety of industries including energy, chemicals, pharmaceuticals, metals and minerals, and refining, as well as institutional and commercial clients, we offer a diverse set of steel products and services. 

Wiltsie is certified by the American Society of Mechanical Engineers (ASME) and the National Board of Boiler and Pressure Vessel Inspectors (NB) and holds code stamps S, U, R and NB.  Our steel products are fabricated to meet specifications and codes of organizations such as the AISC, NYSSCM, SMACNA, ASME, API, ASTM, AWWA and AWS to name and few.  

With dedicated staff and management, we offer our customers cost-effective steel goods of exceptional quality and timely delivery.   

Listed below is a summary of the products Wiltsie manufactures:

  • Platforms
  • Walkways
  • Stairways
  • Handrail
  • Ladders
  • Mezzanines
  • Racks
  • Enclosures
  • Guards
  • Hoppers
  • Columns
  • Beams
  • Plates
  • Supports
  • Brackets
  • Posts
  • Bases/Frames
  • Ductwork
  • Chutes
  • Custom
  • ASME Pressure Vessels
  • API 650 Oil Storage Tanks
  • AWWA Water Tanks
  • Stacks
  • Baghouses
  • Breeching
  • Prototypes
  • Trays
  • Weldments
  • Fabrications

Contact us today for more information about our steel fabrication capabilities.


Wiltsie Construction Co., Inc. • 735 East Seneca Street, Oswego, NY 13126 • P: 315.342.1880 • F: 315.343.8238