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| Material | 17-4 PHS17400 |
|---|---|
Summary | |
| Material family | Special Stainless & Iron-Base Alloys |
| Grade / UNS | S17400 |
| Summary | A precipitation-hardening stainless steel whose strength and toughness depend on the aging condition. |
Performance overview | |
| Material focus | Strength set by heat treatment |
| 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 | 1340 MPa Typical reference values ATI · 17-4 PH · 2016 bulletin · pages 1–2 and 4–5; H900 typical properties ↗H900 Room temperature |
| 0.2% yield strength | 1240 MPa Typical reference values ATI · 17-4 PH · 2016 bulletin · pages 1–2 and 4–5; H900 typical properties ↗H900 Room temperature |
| Elongation | 10 % Typical reference values ATI · 17-4 PH · 2016 bulletin · pages 1–2 and 4–5; H900 typical properties ↗H900 Room temperature |
| 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 | State H900, H1150 or the required condition explicitly. |
| 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 | H900 |
| Reference treatment | Solution treated, then aged at 482°C (900°F).ATI · 17-4 PH · 2016 bulletin · pages 1–2 and 4–5; H900 typical properties ↗ |
Reference applicationsApplication examples provide context for review; suitability depends on the actual service conditions. | |
| Reference applications | Shafts · valve assemblies · structural components |
Standards & documentationConfirm the edition, product form and condition. Material specifications do not establish finished-fastener compliance. | |
| Material specifications by form |
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| Sources | Sources
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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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