Hastelloy X is a nickel-chromium-iron-molybdenum alloy with an exceptional combination of high temperature strength, oxidation resistance and fabricability. It shows good ductility after prolonged exposure at temperatures up to 870℃ for 16000 hours. It also has excellent resistance to stress corrosion cracking in petrochemical applications.
Chinese designation: 哈氏合金 X
| Element | Min % | Max % |
|---|---|---|
| Cr | 20.5 | 23 |
| Fe | 17 | 20 |
| Mo | 8 | 10 |
| Co | 0.5 | 2.5 |
| W | 0.2 | 1 |
| Mn | — | 1 |
| Si | — | 1 |
| C | 0.05 | 0.15 |
| P | — | 0.04 |
| S | — | 0.03 |
| Ni | balance | — |
Chemical composition per the grade specification. Values are nominal; the mill test report is issued with every order, traceable to the heat number.
| Product form | ASTM / EN specification |
|---|---|
| Rod | B 572 |
| Plate, sheet and strip | B 435, B 906 |
| Seamless pipe and tube | B 622 |
| Welded pipe | B 619, B 775 |
| Welded tube | B 626, B 751 |
| Welding fitting | B 366 |
| Billet and bar for reforging | B 472 |
Hastelloy X (UNS N06002, DIN W. Nr. 2.4665) is a nickel-based alloys grade. Hastelloy X is a nickel-chromium-iron-molybdenum alloy with an exceptional combination of high temperature strength, oxidation resistance and fabricability. It shows good ductility after prolonged exposure at temperatures up to 870℃ for 16000 hours. It also has excellent resistance to stress corrosion cracking in petrochemical applications.
ROBAN supplies Hastelloy X as rod, plate, sheet and strip, seamless pipe and tube, welded pipe, welded tube, with custom dimensions to your drawing.
Yes. Every order ships with a mill test report 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 report 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.
