Hastelloy N Tubing

Hastelloy N tubing is a nickel-molybdenum alloy designed for high-temperature applications in nuclear power plants. Being one of the most heat resistant and having high strength at high temperatures, Hastelloy N (UNS N10003) is also resistant to fluoride salts, thus being suitable for molten salt reactors and other applications.

Chemical Composition of Hastelloy N Tubing

The composition of Hastelloy N tubing is crucial for understanding its properties and performance in various industrial applications.

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

Thus, this table provides valuable insights into the chemical composition of these flanges, highlighting their properties and suitability.

Mechanical Properties of Hastelloy N Tubing

The table provides essential information for engineers and manufacturers to assess the integrity and durability of Hastelloy N tubing in demanding environments.

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

Thus, this valuable data on the strength, flexibility, and resilience of Hastelloy N tubing is crucial for ensuring reliability and longevity.

Advantages of Hastelloy N Tubing

These flexible tubes offer numerous benefits for various industrial applications, which are as follows.

High-Temperature Strength: Hastelloy N tubing has good mechanical strength that is not significantly affected by high temperatures and performs well in high-temperature applications.
Oxidation Resistance: The alloy also exhibits superior oxidation resistance at high temperatures, which is necessary for preserving the material’s mechanical properties over time.
Fluoride Salt Resistance: Hastelloy N is very resistant to fluoride salts. Therefore, it is used in molten salt reactors and other processes that involve these substances.
Thermal Stability: The alloy also has good thermal stability and is not affected by high or low temperatures as it retains most of its properties.
Fabricability: Hastelloy N tubes can be easily formed and welded by various methods, and thus, complex shapes and structures can be developed.

Hastelloy N tubing offers several advantages that make it suitable for industrial and commercial applications.

Common Applications of Hastelloy N Tubing

Due to its excellent features, Hastelloy N tubing is preferred in various industrial applications. Some of the main applications include.

Nuclear Industry: Hastelloy N tubing is also widely applied in the nuclear power industry, especially in molten salt reactors where the tubing can withstand the corrosive action of fluoride salts and high operating temperatures.
Aerospace Industry: Hastelloy N tubes are applied in the aerospace industry, the parts of jet engines and rocket motors, in which high-temperature strength and oxidation resistance are required.
Chemical Processing: Hastelloy N tubes are recommended for use in chemical processing equipment that requires high-temperature and corrosion resistance, such as reactors, heat exchangers and piping systems.
Industrial Furnaces: Hastelloy N tubes are applied in industrial furnaces for internal and external furnace protection, burners, heat exchangers, etc., where high-temperature strength and oxidation resistance are required.
Power Generation: Hastelloy N tubing is used in power plants where high-temperature heat exchangers and boiler tubes are exposed to high temperatures and corrosive environments.
Petrochemical Industry: The petrochemical industry uses the Hastelloy N tube for equipment subjected to high temperatures and corrosive agents, including reactors and heat exchangers.
Solar Energy Systems: Hastelloy N is applied in solar energy systems, especially in parts subjected to high temperature and thermal shock, to guarantee the stable and efficient operation of the system.
Desalination Plants: Hastelloy N is used in desalination plants for such parts as evaporators and heat exchangers since the material must be resistant to saltwater and high temperatures.