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Hastelloy X (UNS N06002) supplier — ASTM B435/B572. Outstanding high-temperature oxidation resistance to 1200°C. Used in jet engine combustion zones, industrial furnaces, nuclear reactors.
Hangbo Alloy Group provides high-performance Hastelloy X (Alloy X) superalloy products, including oxidation-resistant round bars, seamless tubes, and specialized aircraft-grade sheets. Below is the technical profile for Hastelloy X:
Detailed Introduction to Hastelloy X
Hastelloy X (UNS N06002 / W.Nr. 2.4665) is a nickel-chromium-iron-molybdenum superalloy that possesses an exceptional combination of high-temperature strength, oxidation resistance, and excellent fabricability. It is one of the most widely used nickel-base superalloys for gas turbine engine components. Hastelloy X exhibits outstanding ductility after prolonged exposure to high temperatures (650°C to 870°C) and is remarkably resistant to stress-corrosion cracking in petrochemical applications.
Key Standards: ASTM B572 (Bar), ASTM B435 (Plate/Sheet), AMS 5536, AMS 5754.
Chemical Composition of Hastelloy X (UNS N06002)
| Element | Content (%) |
|---|---|
| Nickel (Ni) | Remainder (41.3 - 53.7) |
| Chromium (Cr) | 20.5 - 23.0 |
| Iron (Fe) | 17.0 - 20.0 |
| Molybdenum (Mo) | 8.0 - 10.0 |
| Cobalt (Co) | 0.50 - 2.50 |
| Tungsten (W) | 0.20 - 1.00 |
| Manganese (Mn) | 1.00 max |
| Silicon (Si) | 1.00 max |
| Carbon (C) | 0.05 - 0.15 |
Mechanical Properties (Room Temperature)
| Property | Value (Min) |
|---|---|
| Tensile Strength | 690 MPa (100 ksi) |
| Yield Strength (0.2% Offset) | 310 MPa (45 ksi) |
| Elongation | 35% |
Material Characteristics
- Extreme Oxidation Resistance: Exceptional resistance to oxidation at temperatures up to 1200°C (2200°F).
- High-Temperature Strength: Maintains mechanical integrity in gas turbine combustion environments.
- Superior Fabricability: Excellent forming and welding characteristics, suitable for complex aerospace designs.
- Atmospheric Versatility: Resists oxidizing, reducing, and neutral atmospheres, as well as carburization.
Common Applications of Hastelloy X
- Aerospace: Combustion cans, transition ducts, spray bars, and flame holders in jet engines.
- Industrial Furnaces: Baffles, muffles, retorts, and furnace rolls operating at 1100°C+.
- Petrochemical: Catalyst support grids and pyrolysis tubing.
- Nuclear: High-temperature structural components.
Pros & Cons of Hastelloy X
| Pros | Cons |
|---|---|
| Outstanding resistance to nitridation and carburization. | Lower creep-rupture strength than cobalt-based superalloys like L-605. |
| Easier to weld and form than most other superalloys. | Susceptible to sigma phase formation after extremely long exposure at mid-range temperatures. |
| Predictable life in cyclic high-temperature service. | Higher cost due to high molybdenum and chromium content. |
Frequently Asked Questions (FAQ)
Q: What is the primary advantage of Hastelloy X over Hastelloy C-276?
A: Hastelloy X is optimized for high-temperature oxidation and strength, whereas C-276 is designed for low-temperature aqueous corrosion resistance.
Q: Can Hastelloy X be used in vacuum furnaces?
A: Yes, it is a preferred material for furnace internals due to its resistance to various industrial atmospheres and high-temperature stability.
Internal Links:
Hastelloy C-276 - The Corrosion Benchmark
Inconel 601 - Alternative Oxidation Resistant Alloy
Production Process
Our Hastelloy X is manufactured using **VIM + VAR** to ensure ultra-low impurity levels and superior fatigue strength. Finished products are solution heat-treated at 1177°C (2150°F) and rapidly cooled to optimize mechanical performance.
Testing & Inspection
- High-Temperature Tensile: Verification of yield and tensile strength at 800°C+.
- Oxidation Testing: Compliance with industrial high-temperature standards.
- Fluorescent Penetrant Inspection: Crack detection in complex formed parts.
Quality Control
Material is certified to **AMS 5536, AMS 5754, and ASTM B572**, with full process traceability and chemical verification.
Product Forms & Standards Comparison
| Product Form | Main Standard | Typical Range |
|---|---|---|
| Round Bar | ASTM B572 / AMS 5754 | Φ6mm - Φ300mm |
| Sheet/Plate | ASTM B435 / AMS 5536 | T 0.5mm - 25mm |
| Seamless Tube | ASTM B622 | Custom OD/WT |
