Jiangyin Chengxin Alloy Material Co., Ltd ，
Jiangsu Xiangcheng Supply Chain Management Co. LTD
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Nickel201/N 02201/2.4061 Pure Nickel Wire for Chemical Processing and Marine Applications
Nickel 201 is a high-purity nickel alloy containing at least 99.6% nickel, renowned for its excellent corrosion resistance, particularly in alkalis, acids, and seawater. It also offers strong performance in high-temperature environments, with oxidation resistance up to around 1,000°C (1,832°F). The alloy is non-magnetic, making it suitable for sensitive applications in electronics and instrumentation. Nickel 201 is easily weldable and machinable, allowing for versatile fabrication into various forms like tanks, piping, and heat exchangers.
Its low carbon content reduces the risk of carbide formation, maintaining corrosion resistance, especially in welded areas. This alloy is widely used in industries such as chemical processing, aerospace, food production, and nuclear applications, where resistance to corrosive environments and high temperatures is critical. The combination of mechanical strength, corrosion resistance, and fabrication ease makes Nickel 201 ideal for demanding, high-performance applications.
Trade Code
| GB | ASTM | DIN |
| NS 5201 | W-Nr.2.4061 |
Nominal Chemical Composition (%)
| Alloy | Ni | Mn | Fe | Si | Cu | C | Ti |
| Ni200 | ≥ 99.2 | ≤ 0.30 | ≤ 0.20 | ≤ 0.10 | ≤ 0.20 | ≤ 0.10 | ≤ 0.10 |
| Ni201 | ≥ 99.2 | ≤ 0.30 | ≤ 0.20 | ≤ 0.10 | ≤ 0.20 | ≤ 0.05 | ≤ 0.10 |
| Ni205 | ≥ 99.6 | ≤ 0.20 | ≤ 0.20 | ≤ 0.10 | ≤ 0.10 | ≤ 0.05 | ≤ 0.05 |
Size Range
| Type | Dia. (mm) | Width (mm) | Thickness (mm) |
| Wire | 0.04 - 12.0 | - | - |
| Ribbon | - | 2.0 | ≥ 0.08 |
Physical Properties (at room temperature)
| Alloy | Density (g/cm3) | Thermal Conductivity (W/m K) | Thermal Linear Expansion Coeff. (20-95 ℃) (10-6/K) | Electrical Resistivity at 20 ℃ (μΩ-cm) |
| Ni200/201 | 8.89 | 70.20 | 13.3 | 9 |
| Ni205 | 8.89 | 75.00 | 13.3 | 8.9 |
Mechanical Properties (for cold drawn annealed wire)
| Alloy | Tensile strength (N/mm2) | Elongation (% at L0=100mm) | ||
| Min | Max | Min | Max | |
| Ni200/201 | 400 | 550 | 20 | 30 |
| Ni205 | 400 | 530 | 20 | 30 |
Key features of Nickel 201 alloy:
Nickel Content: Nickel 201 contains a minimum of 99.6% nickel, which classifies it as a commercially pure nickel alloy.
Low Impurity Levels: The low levels of impurities, especially sulfur and carbon, enhance its performance in many applications, particularly those involving high temperatures or corrosive environments.Excellent Corrosion Resistance
Resistant to Corrosion in Neutral and Reducing Environments**: It is highly resistant to corrosion in neutral and reducing environments, including exposure to many acids, such as hydrochloric acid (at low concentrations).
Good Resistance to Sea Water: Nickel 201 shows resistance to corrosion in seawater and marine environments, making it suitable for marine and offshore applications.
Good Resistance to Organic Acids: The alloy performs well in many organic acids and other corrosive chemicals, such as vinegar or citric acid.
High Melting Point: Nickel 201 has a melting point of about 1,455°C (2,651°F), which gives it good strength and stability at elevated temperatures.
Heat Resistance: The alloy is capable of maintaining its mechanical properties even at high temperatures (up to 1,000°C / 1,832°F) without significant degradation.
Oxidation Resistance: It also has excellent resistance to oxidation in air at elevated temperatures, making it ideal for use in heat exchangers and high-temperature industrial processes.
Ease of Fabrication: Nickel 201 can be easily welded, forged, and machined, thanks to its relatively simple composition and high ductility.
Compatibility with Welding Processes: It is compatible with various welding techniques, including TIG (Tungsten Inert Gas) and MIG (Metal Inert Gas) welding.
Non-Magnetic: Nickel 201 is a non-magnetic alloy, which makes it suitable for applications where magnetic properties must be avoided, such as in certain electronics and instrumentation.
Good Tensile Strength: Nickel 201 exhibits good tensile strength and durability, making it suitable for use in structural applications.
Ductility and Toughness: The alloy is highly ductile and tough, providing resistance to brittle fracture and enabling it to absorb energy without breaking.
Low Thermal Expansion: Nickel 201 has a relatively low coefficient of thermal expansion, which helps maintain dimensional stability across temperature changes.
Good Electrical Conductivity: Nickel 201 offers decent electrical conductivity, making it useful in electrical and electronic components, such as connectors, switches, and battery casings.
Low Carbon Content: The alloy’s low carbon content (typically less than 0.02%) minimizes the risk of carbide precipitation, which can lead to the loss of corrosion resistance, particularly in welded areas.
Stress Corrosion Resistance: Nickel 201 is resistant to stress corrosion cracking, especially in aqueous environments, such as those found in chemical and petrochemical industries.
Food Industry Suitability: Because of its excellent resistance to food acids, Nickel 201 is commonly used in food processing equipment, such as tanks and piping systems for acidic food products.
Easy to Form and Shape: Due to its good ductility and malleability, Nickel 201 can be easily fabricated into complex parts, including thin sheets, foils, and intricate welded structures.
These characteristics make Nickel 201 a highly versatile alloy, suitable for a wide range of demanding applications, particularly in chemical processing, aerospace, food processing, and high-temperature environments.
Application:
Reaction vessels and tanks: Used in the production of chemicals like caustic soda and other alkali-based materials.
Heat exchangers: For processes that require resistance to corrosive environments at high temperatures.
Pipes and fittings: For transporting corrosive fluids such as acids or alkaline solutions.
Rocket engines and propulsion systems**: Its high-temperature stability makes it ideal for aerospace applications.
Aircraft components: Used in some aircraft parts that are exposed to high heat or corrosive environments.
Battery casings and components: The alloy’s corrosion resistance and stability make it suitable for use in rechargeable battery systems, particularly in hydrogen fuel cells and nickel-metal hydride (NiMH) batteries.
Electrical contacts and connectors: Nickel 201's resistance to wear and oxidation helps ensure long-lasting performance in electronics.
Food processing equipment: Nickel 201 is used in food and beverage containers, storage tanks, and pipelines, particularly for acidic or corrosive food products like vinegar, fruit juices, or milk.
Brewing equipment: It is used in brewing and fermentation equipment because it resists corrosion caused by acids found in hops and fermentation.
Nuclear reactor core components: Nickel 201 is used in the manufacture of reactor core components and control rods due to its ability to withstand radiation and thermal stress.
Fuel cladding: Nickel alloys can be used in the cladding of nuclear fuel to prevent corrosion from the reactor environment.
Marine equipment: Such as seawater piping, heat exchangers, and pumps.
Shipbuilding: For components exposed to seawater.
Heating elements: It is used in high-temperature furnaces and heating elements.
Vacuum systems: It is also used in vacuum furnace components that require heat resistance.
Welding rods: Nickel 201 welding rods are used for welding pure nickel to itself or to other metals.
Corrosion-resistant coatings: Nickel 201 can be used in coating applications to protect surfaces from corrosion, particularly in harsh chemical environments.
Pressure vessels: It is used in pressure vessels for the chemical industry, oil refining, and other industries requiring resistance to high pressures and corrosion.
These characteristics make Nickel 201 a versatile material in many high-performance environments, especially where corrosion and high-temperature stability are critical.
