Structural Steel Built-Up Section Fabrication Inspection

Inspection template for structural steel QC to verify welded built-up section fabrication, including web, flange, and splice welds, dimensions, alignment, and shop drawing conformance for metal building frames.

Inspection Details and Document Control

• Shop drawing revision matches the released fabrication package
  Verify the inspected member is being checked against the correct approved shop drawing revision and fabrication release.
• Member identification and heat/traceability marks are present and legible
  Check that the fabricated member can be traced to material certifications and shop records.
• Required inspection hold points and acceptance criteria are identified
  Confirm the inspection plan identifies required visual inspection, NDT, and any hold/witness points.
• Inspector name, date, and shift are recorded
  Document who performed the inspection and when it was completed.

Material Preparation and Fit-Up

• Base material grade, thickness, and size match the shop drawing
  Verify web, flange, cover plate, and splice plate materials match specified grade and dimensions.
• Cut edges, bevels, and joint preparation are clean and within specification
  Inspect prepared edges for burrs, laminations, excessive gouging, or contamination that could affect weld quality.
• Fit-up gap and root opening are within specified tolerance
  Measure the actual fit-up gap at web, flange, and splice joints.
• Parts are properly clamped, aligned, and restrained before welding
  Confirm the assembly is held to prevent movement, distortion, or misalignment during welding.
• Tack welds are sound and do not introduce defects into final weld zones
  Inspect tack welds for cracking, lack of fusion, or placement that interferes with final weld quality.

Web, Flange, and Splice Weld Quality

• Weld procedure specification and welder qualifications are approved for the joint
  Confirm the weld process, filler metal, and welder qualifications are appropriate for the fabricated joint.
• Web-to-flange welds are continuous and free of visible discontinuities
  Inspect the longitudinal welds joining the web and flange for cracks, undercut, overlap, porosity, or incomplete fill.
• Splice welds show full joint preparation and acceptable profile
  Check splice welds for proper preparation, sound tie-in, and acceptable reinforcement/profile.
• Weld size and length meet the shop drawing and WPS requirements
  Measure representative weld size or leg length where applicable.
• No visible cracks, arc strikes, or repair defects remain in the finished weld area
  Verify the finished weld zone is free of cracks, arc strikes, gouges, and incomplete repairs.
• Required nondestructive testing is complete and accepted
  Confirm any required VT, MT, UT, or other NDT has been performed and accepted per project requirements.

Dimensional Accuracy and Alignment

• Overall member length matches the shop drawing tolerance
  Measure the overall fabricated length of the built-up section.
• Web straightness and flange alignment are within tolerance
  Check for bow, camber deviation, twist, or flange offset beyond allowable limits.
• Flange spacing and web depth match the shop drawing
  Measure the actual section depth and flange spacing at required locations.
• Splice location and orientation match the fabrication layout
  Verify splice placement, orientation, and match marks correspond to the approved layout.
• Camber, sweep, and twist are within specified limits
  Measure the member's geometric deviation from the specified shape.

Surface Condition, Marking, and Protection

• Surface is free of oil, heavy rust, slag, spatter, and loose mill scale in weld zones
  Check the weld and coating preparation areas for contamination that could affect quality or coating adhesion.
• Grinding, blending, and weld cleanup are smooth and do not reduce section capacity
  Verify any grinding or weld cleanup has not created gouges, sharp notches, or excessive base metal removal.
• Piece marks, orientation marks, and erection marks are correct and legible
  Confirm identification marks are present and readable for shipping and erection.
• Temporary attachments, tabs, and weld stubs have been removed or disposed per specification
  Check for leftover tabs, clips, or attachments that should have been removed after fabrication.

Final Disposition and Sign-Off

• All non-conformances are documented with disposition and corrective action
  Ensure any deficiency has a documented NCR, repair plan, or engineering disposition.
• Re-inspection is required after repairs
  Indicate whether repaired areas must be rechecked before release.
• Inspection result
  Overall disposition of the fabricated built-up section.
• Inspector signature
  Inspector sign-off confirming the inspection was completed and recorded accurately.