Hastelloy N
Details
Lork Group high-quality Hastelloy N (UNS N10003) 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.
Products Description
Lork Group high-quality Hastelloy N (UNS N10003) 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. It has good oxidation resistance to hot fluoride salts in the temperature range of 1300 to 1600°F (704 to 871°C).
Developed to withstand the rigorous conditions of nuclear reactor cores, Hastelloy N offers robust mechanical properties and reliable performance at elevated temperatures.Hastelloy N alloy has good oxidation resistance in air. It shows promise for continuous operations at temperatures up to 1800°F (982°C).
Intermittent use at temperatures up to 1900°F (1038°C) may also be possible. No discernible oxidation could be measured for the alloy at temperatures up to 1200°F (649°C).
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.
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
|
Element |
Content (%) |
|
Nickel, Ni |
71 |
|
Molybdenum, Mo |
16 |
|
Chromium, Cr |
7 |
|
Iron, Fe |
≤ 5 |
|
Silicon, Si |
≤ 1 |
|
Manganese, Mn |
≤ 0.80 |
|
Tungsten, W |
≤ 0.50 |
|
Aluminum, Al + Titanium, Ti |
≤ 0.50 |
|
Copper, Cu |
≤ 0.35 |
|
Cobalt, Co |
≤ 0.20 |
|
Carbon, C |
≤ 0.080 |
Physical Properties
|
Properties |
Metric |
Imperial |
|
Density |
8.86 g/cm³ |
0.320 lb/in³ |
|
Melting point |
1372°C |
2500°F |
Mechanical Properties
|
Properties |
Metric |
Imperial |
|
Tensile strength |
800 MPa |
116000 psi |
|
Elongation at break (in 25.4 mm) |
39.3% |
39.3% |
|
Modulus of elasticity (@14°C) |
219 GPa |
31800 ksi |
Fabrication and Heat Treatment
Machinability
Can be machined using conventional machining methods which are used for iron-based alloys. Machining operations are performed using commercial coolants. High-speed operations such as grinding, milling or turning, are performed using water-based coolants. Heavy lubricants are used for, tapping, drilling, boring, or broaching.
Forming
Hastelloy N is formed using conventional techniques.
Welding
Hastelloy N is welded using gas-tungsten arc welding, gas metal-arc welding, shielded metal-arc welding. Submerged-arc welding method is not preferred.
Heat Treatment
Hastelloy N does not respond to heat treatment.
Cold Working
Can be cold worked using standard tooling. Soft die materials such as zinc alloys, and bronze are used for producing good finish and reducing galling problems. During the sequence of cold forming process, intermediate annealing can be performed.
Annealing
Hastelloy N is annealed at 1177°C (2150°F) followed by cooling.
Hardening
Hastelloy N is hardened only by cold working.
Application
- Molten Fluoride Salt Container
- Chemical process equipment
- Nuclear Reactors
- Heat Treating Equipment
- Aerospace Components
- Hydrocarbon Processing
- Environmental Control Systems