Tips for Thru-Deck Structural Steel Welding

Stud welding is used extensively throughout the construction industry for residential and commercial buildings, industrial facilities, infrastructure, and more. The widespread use of stud welding in construction is largely due to the powerful fastening and composite building capabilities that different operations provide. With shear connectors, builders can secure concrete onto steel beams; bar anchors allow connections between bearing plates and concrete; and many other studs are key in structural steel welding processes. If you’re using stud welding operations in your construction projects, Northland Fastening Systems (NFS) has the tools, supplies, and expertise you need. We provide a complete selection of drawn arc and CD welding studs, welding tools for rent or purchase, welding accessories, and the advice of our own welding technicians. We also provide repairs and services for many standard stud welding tool models.

Structural Steel Welding

Within the structural steel welding industry, one of the most valuable operations is thru-deck welding. Thru-deck welding allows builders to attach various sizes, thicknesses, and materials of steel decking to beams and other building components. Decking materials are used in several kinds of building construction for its strength, flexibility, and cost-effectiveness.

Thru-Deck Studs

When welding thru-deck studs, the following steps should be taken into account.

  • Make sure you are using the right tools for the job, including thru-deck studs, a drawn arc welding unit calibrated correctly, the best power supply suited to the task, and thru-deck welding ferrules. Thru-deck welding ferrules have wider gaps between teeth than other ferrules. These gaps allow more oxygen to reach the weld, creating better stud penetration through the deck to the underlying beam.
  • Attach the decking as securely to the beam as possible and use grounding correctly. Grounding can be done with a welding ground C-clamp attached in a spot on the beam that has been ground down to bare metal.
  • Check your power source(s). Thru-deck welding sites can be larger than others. This means you often need power extensions to reach far away welds. This can be done successfully, but keep in mind how cable length and wire size can impact power supply.
  • Clean and dry the decking. For accurate thru-deck welding, sweep away dust and debris before each weld. If there are unavoidable wet conditions, the weld point should be dried with a blower or heat gun to remove moisture from in between the beam and the deck.
  • Monitor temperatures. Thru-deck welding temperatures should be above 0ºF according to the American Welding Society (AWS) “Ambient and Base-Metal Temperature Requirements.”

Standardized Procceure

Thru-deck welding is a highly standardized procedure used today on many construction sites. However standardized, it still is a technical process that requires a deep understanding and well-manicured conditions.

To learn more about thru-deck structural steel welding, contact NFS at (651) 730-7770. You can also request a quote online to get started with us today.