EN 10204 3.1 and EN 10204 3.2 are material certification standards commonly required for aerospace, medical, energy, and industrial applications.
The primary difference is the level of independent inspection and certification.
What Is EN 10204 3.1?
EN 10204 3.1 certification is issued by the material manufacturer and confirms that supplied material meets the specified requirements.
The certificate typically includes:
- chemical composition
- mechanical properties
- heat number traceability
- inspection results
What Is EN 10204 3.2?
EN 10204 3.2 certification includes additional verification by an independent inspection body or customer-designated representative.
This provides a higher level of material verification.
EN 10204 3.1 vs 3.2 Comparison
| Feature | EN 10204 3.1 | EN 10204 3.2 |
|---|---|---|
| Material Traceability | Yes | Yes |
| Mechanical Properties | Yes | Yes |
| Chemical Analysis | Yes | Yes |
| Independent Verification | No | Yes |
| Cost | Lower | Higher |
When Is EN 10204 3.1 Used?
EN 10204 3.1 is commonly required for:
- general aerospace materials
- stainless steel bar
- nickel alloys
- titanium alloys
- industrial manufacturing
When Is EN 10204 3.2 Required?
EN 10204 3.2 is often specified for:
- critical aerospace applications
- defense programs
- nuclear projects
- high-risk engineering applications
Common Materials Supplied With EN 10204 Certification
- 1.4542 stainless steel
- 1.4301 stainless steel
- 1.4404 stainless steel
- A286
- Inconel 718
- MP35N
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