About Alloy
Hastelloy N is an advanced nickel-based alloy renowned for its exceptional resistance to high-temperature corrosion and stress cracking in hydrogen-rich environments, specifically engineered for critical applications within the nuclear industry. Developed to withstand the rigorous conditions of nuclear reactor cores, Hastelloy N offers robust mechanical properties and reliable performance at elevated temperatures.
This alloy's superior resistance to hydrogen embrittlement and stress corrosion cracking makes it indispensable in nuclear power generation, ensuring safety and longevity in pressurized water reactors (PWRs) and boiling water reactors (BWRs). Its ability to maintain structural integrity under extreme conditions underscores its significance in safeguarding against the challenges posed by high-pressure water environments and hydrogen exposure.
Key to Hastelloy N's effectiveness is its composition, which typically includes high levels of nickel, chromium, and molybdenum, augmented by additional elements such as iron and cobalt. These components not only enhance its resistance to corrosion but also contribute to its durability and strength in demanding operational environments.
With its proven track record in nuclear applications, Hastelloy N continues to be a material of choice for critical components where reliability, safety, and performance under harsh conditions are essential considerations.
Product Form
Rod, Bar, Wire and Forgings: ASTM B573, ASME SB573, AMS 5771
Plate, Sheet and Strip: AMS 5607, ASTM B434, ASME SB434
Welding Product: ERNiMo-2 A5.14
Pipe and Tube:-
Chemical Composition
| Alloy | C | Si | Mn | P | S | Cr | Ni | Mo | W | Al+Ti | Cu | B | V | Fe |
| Hastelloy N | 0.04-0.08 | ≤1.00 | ≤1.00 | ≤0.025 | ≤0.010 | 6.0-8.0 | Bal | 15.0-18.0 | ≤0.50 | ≤0.50 | ≤0.35 | ≤0.01 | ≤0.50 | ≤5. |
Property
| Density, g/cm3 | Melting Point, ℃ | Tensile Strength, MPa | Yield Strength, MPa | ELongation, % | Hardness, HRB |
| 8.86 | 1300-1400 | 462 | 148 | 47 | / |
Application
Chemical process equipment
Nuclear Reactors
Heat Treating Equipment
Aerospace Components
Hydrocarbon Processing
Environmental Control Systems
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