Standards, Testing & Quality
Steel Quality Inspection Checklist: From Delivery to Dispatch
A practical steel quality inspection checklist for buyers and fabricators: receipt inspection, certificate review, dimensional checks, surface, welding, NDT, coating and documentation.
Saudi Steel Work Editorial Team · · 3 min read
Short answer: A steel quality inspection checklist covers receipt inspection (documents, heat numbers, dimensions, surface), storage and traceability, fabrication checks (fit-up, welding, NDT, dimensions), surface treatment (blast profile, DFT, galvanizing thickness), and final documentation before dispatch or handover.
Use this checklist as a starting point for your inspection and test plan (ITP). Adapt it to your project specification.
1. Receipt inspection
- Delivery note matches PO
- Certificates present, correct type (e.g. 3.1) (MTC guide)
- Heat numbers on steel match certificates
- Grade and standard as ordered
- Dimensions within tolerance (tolerances)
- Surface: no laminations, deep pitting, excessive rust, damage
- Quantity and lengths correct
- PMI for alloy and stainless where required (PMI)
2. Storage and traceability
- Stored off ground, by grade and heat
- Stainless segregated from carbon steel
- Heat numbers transferred to cut pieces
3. Fabrication
- Approved shop drawings in use
- Qualified WPS and welders (WPS/PQR)
- Consumables stored correctly
- Fit-up and preheat checked
- Visual weld inspection on 100% of welds
- NDT per ITP: MT, UT, RT as specified (NDT guide)
- Dimensional checks of assemblies
- Bolt holes: size, position, edge distance
4. Surface treatment
- Surface cleanliness and profile before coating
- Ambient conditions within limits
- DFT per coat recorded
- Galvanizing thickness measured (galvanizing)
- Repairs documented
5. Final inspection and dispatch
- Piece marks correct and legible
- Packing protects coatings
- Packing list matches erection sequence
6. Documentation
- Material certificates
- Weld maps and NDT reports
- Coating reports
- Non-conformance reports and closures
- Final quality dossier
See quality and standards and our inspection support service.
Frequently asked questions
What is an ITP?
An Inspection and Test Plan defining each inspection step, acceptance criteria, responsible party and hold or witness points.
What is a hold point?
An inspection stage where work cannot proceed until the client or inspector has inspected and released it.