Material Certificates: Guide to Types 2.1, 2.2, 3.1 and 3.2
Published on 14 August 2026 by Metal S.r.l.
Material certificates certify conformity to technical specifications, regulated by EN 10204.
The 4 certificate types
| Type | Content | Issued by |
|---|---|---|
| 2.1 | Declaration of conformity | Manufacturer |
| 2.2 | Test certificate | Manufacturer |
| 3.1 | Inspection certificate | Independent QA |
| 3.2 | Inspection certificate | Manufacturer + external inspector |
When 3.1 is mandatory
- Pressure equipment (PED)
- Load-bearing structures with CE marking (EN 1090)
- Food plants (BRC, IFS)
- Oil & gas projects
Costs and times
| Certificate | Cost | Time |
|---|---|---|
| 2.1 | Free | Immediate |
| 2.2 | 5–20 € | 1-2 days |
| 3.1 | 20–50 € | 2-5 days |
| 3.2 | 200–500 € | 1-2 weeks |
Metal S.r.l. can supply material with 3.1 or 3.2 certificate on request.
Conclusion
If you need support for your project, the Metal S.r.l. team is available for technical analysis, quotations and samples.
Request 3.1 certificate →