TECHNICAL LIBRARY · EN PROCUREMENT REFERENCE
EN 10253-4:2025 — Austenitic and Duplex Stainless Butt-Welding Fittings
Procurement reference for wrought austenitic and austenitic-ferritic stainless steel butt-welding fittings with specific inspection requirements.
This MNK-G.S.A page is an original procurement summary. It does not reproduce or replace the protected EN publication.
Scope in Procurement
- EN 10253-4:2025 covers wrought butt-welding pipe fittings made from austenitic and austenitic-ferritic (duplex) stainless steels with specific inspection requirements.
- The inquiry must identify the fitting type, steel designation, dimensions, wall series, ends, manufacturing route, inspection requirements and piping code.
- A fitting standard does not establish the conformity of the connected pipe, flange, valve or complete piping system. Each component and the assembled system retain their own requirements.
Where This Standard Fits
| Product form | Wrought butt-welding pipe fittings |
| Material families | Austenitic and austenitic-ferritic (duplex) stainless steels |
| Inspection context | Specific inspection requirements |
| Scope boundary | Pipe, flanges, valves and complete piping systems require their own specifications |
Ordering Controls
- Exact EN steel name, material number and edition
- Elbow, tee, reducer, cap or other fitting type
- Outside diameter, wall series, dimensions and tolerances
- Manufacturing route, heat treatment, ends and surface condition
- Piping code, design pressure and temperature, NDT and supplementary tests
- EN 10204 document, traceability, marking, quantity and destination
Edition control: the purchase order, approved material specification and current authorised standard govern the supply. The designation alone does not prove grade, form, design-code or project compliance.
Related MNK Technical Pages
- Stainless Steel Fittings & Flanges
- 904L Stainless Steel
- Duplex & High-Alloy Stainless Steels
- Chemical & Process Industry
- EN Standards Library
Official Publication and Access Policy
Use the official national-standards-body record for EN 10253-4:2025 to verify its title, edition and status. Checked status: Current. Obtain the authorised publication for requirements, tables, tolerances and acceptance criteria. MNK-G.S.A does not publicly reproduce protected standard text. A second official national-standards-body record is available through DIN Media.
Send Your Standards-Based Inquiry
Send EN 10253-4:2025, the material grade, product form, dimensions, quantity, inspection-document requirements and delivery destination.
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