AWS D1.1 Welding Inspection Services
Need an independent welding inspector for structural-steel fabrication, site erection or a defined ITP hold point working to AWS D1.1?
Dilenza provides AWS D1.1 welding inspection services by matching the inspection scope with relevant structural-steel experience, controlled project documentation, location and schedule. Send the project requirement and we will review the information needed to identify a suitable inspector profile.
ITP · Welding specification · WPS · Welder qualification records · Drawings · PO accepted
- Independent third-party inspection
- Shop, supplier and site support
- One visit, recurring or resident coverage
AWS D1.1 Welding Inspection Services for Structural Steel Work
AWS D1.1/D1.1M is the Structural Welding Code — Steel. On a project where that code is named in the contract documents, the inspection assignment must follow the applicable edition, the project specification, drawings, ITP and agreed inspector responsibilities.
Dilenza supports project-specific inspection requests for structural-steel fabrication and erection. The assignment may cover one defined hold point, recurring surveillance or a longer on-site presence. We do not replace the fabricator’s quality-control function or set the project’s acceptance criteria. The inspector verifies the agreed scope and reports what was reviewed, witnessed and observed.
Typical requests may involve fabricated frames, platforms, modules, support structures, heavy steelwork, site connections or other structural-steel assemblies where the code is invoked by the project.
Build the Inspection Scope Around the ITP and Fabrication Stage
The correct scope is established from the controlled project documents before mobilisation. Depending on the agreed assignment, the inspection may include the following activities.
Before Welding
- Review the applicable code edition, drawings, specification and ITP
- Verify the availability of the project-defined WPS and supporting qualification records
- Check welder qualification records where this is included in the scope
- Verify material identification and traceability requirements
- Inspect joint preparation, fit-up, alignment and cleanliness
- Confirm planned hold points, witness points and reporting requirements
During Fabrication or Site Erection
- Observe welding activity against the agreed project requirements
- Verify the documented welding process, joint details and welder identification where required
- Monitor project-defined preheat, interpass-temperature and consumable controls
- Attend specified hold points and witness points
- Record observations, deviations and escalation items through the agreed route
After Welding
- Carry out visual weld inspection and dimensional checks where included in the assignment
- Verify the status of specified NDT and witness it only where the ITP requires this
- Follow agreed repair, reinspection and close-out activities
- Review the agreed inspection records, weld identification and final documentation
NDT execution remains the responsibility of appropriately qualified NDT personnel where required. A welding inspector can witness or review the status of NDT only within the agreed inspection responsibility.
AWS D1.1 Is a Welding Code, Not an Inspector Qualification
An AWS D1.1 requirement and an AWS CWI requirement are not the same thing. AWS D1.1 defines the welding-code framework for the structural-steel work. AWS CWI is a professional inspector credential that may or may not be required by the project specification.
If the project specifically requires an AWS CWI, include that requirement in the request. We consider the required qualification together with relevant structural-steel experience, welding processes, scope of authority, location and schedule. For a qualification-led request, see AWS CWI inspectors.
Where an AWS Certified Welding Inspector is specifically required, see AWS CWI Welding Inspection Services.
Match the Inspector to the Actual Structural-Steel Scope
The code alone does not define the full assignment. To identify a suitable AWS D1.1 welding inspector, Dilenza considers:
- Fabrication-shop, supplier or site location
- Structure type, steel grades, joint details and welding processes
- Applicable code edition, project specification and document hierarchy
- Required inspector qualification and relevant structural-steel experience
- Inspection authority, ITP points, reporting format and escalation route
- Start date, working pattern and expected duration
This gives the project team a basis for reviewing a profile against the actual work, rather than selecting an inspector on the code name alone.
One Hold Point, Recurring Surveillance or Resident Coverage
Choose the inspection model that follows the production risk and project schedule.
Defined Visit
For a specific fit-up check, welding hold point, repair verification, final inspection or document-review stage. See short-term inspection support.
Recurring Inspection
For planned visits at production milestones, defined ITP points or regular supplier surveillance. See recurring inspection services.
Resident Inspection
For sustained fabrication or construction activity where continuity of inspection, documentation and communication is required. See resident inspector services.
Independent Inspection for AWS D1.1 Fabrication and Erection
Before mobilisation, the project team and Dilenza agree the inspection scope, authority, documents, reporting format and escalation route. This keeps the third-party role clear for the owner, EPC, contractor, fabricator and inspector.
The agreed reporting can cover the inspection points attended, the documents reviewed, the observations made and the status of items within the assigned responsibility. It does not replace fabricator QA/QC records, engineering authority or the project’s final acceptance process.
For broad independent inspection support across other welding codes, see welding inspection services. For an asset-led structural-steel request that is not limited to AWS D1.1, see structural steel welding inspection.
AWS D1.1 Welding Inspection Services FAQ
What does an AWS D1.1 welding inspection service cover?
It is a project-specific independent inspection assignment for structural-steel work where AWS D1.1 is identified in the controlled project documentation. The scope can range from a defined hold point to recurring surveillance or resident coverage, and is set by the agreed documents and responsibilities.
Is AWS D1.1 the same as AWS CWI?
No. AWS D1.1 is a welding code for structural steel. AWS CWI is an inspector credential. A project may require either, both or a different inspector qualification. The project specification and ITP determine the requirement.
Can the inspector support both fabrication-shop and site-erection work?
Yes, where the inspector profile, agreed scope, location and project requirements are suitable. State whether the work is at a supplier, fabrication shop, construction site or across more than one location.
Does the welding inspector perform NDT?
Not unless a separately qualified NDT scope is agreed. Within the assigned responsibility, a welding inspector may witness specified NDT or review its status. NDT must be performed by appropriately qualified personnel where required.
Do I need to know the AWS D1.1 edition before requesting an inspector?
The applicable edition must be confirmed from the contract documents. If it is not clear, send the available specification, ITP, purchase order or drawings with the request so the project requirement can be reviewed.
Can I request one inspection day?
Yes. Use the request form to describe the hold point, inspection objective, location and required date. The scope can also be arranged as recurring or resident coverage when the project requires it.
What should I send with the request?
Send the location, structure or equipment, project phase, inspection scope, applicable code, date and expected duration. Where available, attach the ITP, welding specification, WPS, qualification records, drawings or purchase-order requirements.
Request an AWS D1.1 Welding Inspector
Share the project requirement. We will review the code, inspection scope, location and schedule before identifying a suitable inspector profile.