Welding Certification

welding engineering
Welding Certs and Qualifications

Applied Technical Services is a leader among welding certification and weld procedure qualification companies. Many of our clients require their welders to be certified, and at ATS we are able to test all aspects of weld procedure and performance qualifications by conducting destructive and nondestructive testing to ensure conformance to code requirements.  We typically utilize ASME, AWS, API and PED/EN standards.

Reasons to Certify or Qualify a Welder:
  • Pre-employment screening
  • Ensure welder can meet a specific code or standard requirements
  • Document or prove welder is qualified under applicable code

ATS' Weld Testing Facility

ATS’ weld testing facility has spacious, well-equipped and properly lit welding booths where test takers can feel comfortable while being observed by our CWIs.  During observation we watch for proper set-up, and ensure recommended techniques that should deliver quality workmanship for the utilized weld process (SMAW, GMAW, and GTAW) are being followed to meet requested codes and standards. ATS also keeps an in-house stock of most common test coupons required to take certification tests and can provide them to the welders at a reasonable cost.

Types of Certification and Qualification:

  • Fillet
  • Grove

Plate or Pipe Positions:

  • Flat
  • Horizontal
  • Vertical
  • Overhead


  • Root with Backing Bar
  • Open Root Weld


  • Stick (Shielded Metal Arc Welding-SMAW)
  • TIG (Gas Tungsten Arc Welding-GTAW)
  • MIG (Gas Metal Arc Welding-GMAW)
  • Flux-Cored Arc Welding (FCAW)

Common Industry Qualifications:

  • Structural Welder Qualification Test for Industrial Construction
  • Structural Welder Qualification Test for Shipyards
  • Structural Welder Qualification Test for Reinforcing Bar
  • Structural Welder Qualification Test for Sheet Steel
  • Structural Welder Qualification Test for Bridges
  • Welder Qualification Test for Aircraft Components
  • Pipe Welder Qualification Test for Power Plant Construction
  • Welder Qualification Test for Pressure Vessels

Weld Testing of Coupons, Plates and Pipes

If you are interested in our welding certification and qualification services you can send your weld coupons to our testing facility.  ATS has the capability to perform NDT inspections and mechanical testing on any configuration weld specimen.

Inspection Capabilities:

  • Visual Testing
  • Liquid Penetrant
  • Magnetic Particle
  • Ultrasonic
  • Traditional Radiography
  • Computed Digital Radiography

Testing Capabilities:

  • Bend
  • Load
  • Macro Etching
  • Tensile
  • Macro/Microhardness
  • Hardness
  • Corrosion
  • Chemistry Analysis/PMI
  • Charpy Impact
  • Drop Weight Impact

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