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| Material | 254 SMOS31254 |
|---|---|
Summary | |
| Material family | Special Stainless & Iron-Base Alloys |
| Grade / UNS | S31254 |
| Summary | A high-molybdenum austenitic stainless steel used in chloride-bearing process environments. |
Performance overview | |
| Material focus | 6Mo austenitic stainless |
| Physical reference | Not documented in this reference |
| Chemical composition | Chemical compositionComposition limits · wt.%
|
Mechanical propertiesReference conditions vary or are incomplete. Read the basis, condition and source for each column; these values do not establish a performance ranking or finished-fastener acceptance values. | |
| Tensile strength | ≥650 MPa Catalogue reference minimums Supplied technical reference · Scanned PDF page 2 · printed page 14Not documented in this reference Not documented in this reference |
| 0.2% yield strength | ≥300 MPa Catalogue reference minimums Supplied technical reference · Scanned PDF page 2 · printed page 14Not documented in this reference Not documented in this reference |
| Elongation | ≥35 % Catalogue reference minimums Supplied technical reference · Scanned PDF page 2 · printed page 14Not documented in this reference Not documented in this reference |
| Reference conditions |
|
Temperature & corrosionEvaluate the medium, concentration, impurities, temperature and loading together. A melting point or oxidation reference is not a safe working-temperature limit. | |
| Service conditions to review | Check crevices, chloride concentration and temperature. |
| Temperature-dependent data | Not documented in this reference |
Heat treatmentDelivery condition and heat-treatment requirements are agreed for the requested product form and order. | |
| Condition | Not documented in this reference |
| Reference treatment | Not documented in this reference |
Reference applicationsApplication examples provide context for review; suitability depends on the actual service conditions. | |
| Reference applications | Seawater equipment · chemical-process equipment |
Standards & documentationConfirm the edition, product form and condition. Material specifications do not establish finished-fastener compliance. | |
| Material specifications by form |
|
| Sources | Sources
|
Documents for your enquiry
Every BYBOLT delivery includes an MTC / EN 10204 3.1 certificate, heat-number traceability and mechanical testing. Threaded products include sampled GO / NO-GO gauging. Test methods and acceptance criteria follow the agreed specification; PMI, third-party inspection and additional records are agreed separately at quotation.
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