Hastelloy S has excellent thermal stability, low thermal expansion and excellent oxidation resistance at 1093℃. It has good high temperature and thermal fatigue strength. It retains its strength and ductility after aging at temperatures of 427 to 871℃. Hastelloy S is particularly suitable for cyclical heating conditions where components must be capable of retaining their strength, ductility and metallurgical integrity after long time exposure.
Chinese designation: 哈氏合金 S
| Element | Min % | Max % |
|---|---|---|
| Cr | 14.5 | 17 |
| Mo | 14 | 16.5 |
| Fe | — | 3 |
| Co | — | 2 |
| W | — | 1 |
| Mn | 0.3 | 1 |
| Si | 0.2 | 0.75 |
| Al | 0.1 | 0.5 |
| Cu | — | 0.35 |
| La | 0.01 | 0.1 |
| C | — | 0.02 |
| P | — | 0.02 |
| S | — | 0.015 |
| B | — | 0.015 |
| Ni | balance | — |
Chemical composition per the grade specification. Values are nominal; the certified analysis is issued with every order on EN 10204 3.1 documentation.
| Product form | ASTM / EN specification |
|---|---|
| Specification confirmed against ASTM/EN on enquiry | On request |
This grade is supplied to the applicable ASTM/EN specification, confirmed against your drawing or purchase order.
Hastelloy S (UNS N06635) is a nickel-based alloys grade. Hastelloy S has excellent thermal stability, low thermal expansion and excellent oxidation resistance at 1093℃. It has good high temperature and thermal fatigue strength. It retains its strength and ductility after aging at temperatures of 427 to 871℃. Hastelloy S is particularly suitable for cyclical heating conditions where components must be capable of retaining their strength, ductility and metallurgical integrit
ROBAN supplies Hastelloy S as in standard forms to your drawing, subject to specification confirmation.
Yes. Every order ships with EN 10204 3.1 material certification covering the actual heat analysis. 3.2 documentation is available where the contract requires it.
Stock items ship within 3 to 7 working days. Cut-to-size and forged items typically run 15 to 30 working days depending on quantity and specification. Send us your drawing or enquiry for a firm lead time.
Drawing, grade, dimensions, quantity and delivery date — we price from those.
Request a Quote →Heat analysis certificate issued with every order at no extra charge.
Quality documentation →Shearing, sawing and machining to the tolerances on your drawing.
Capabilities →Buyers often substitute within a family once service conditions, corrosion behaviour or fabrication method narrow the choice.
