N5 Nickel Pipe | UNS N02201 Low Carbon Pure Nickel Tube

N5 Nickel Pipe, also known by its international designation UNS N02201, is a high-purity, low-carbon nickel alloy pipe manufactured with a minimum nickel content of 99.95%. This premium-grade material is highly regarded for its outstanding corrosion resistance, particularly in alkaline media such as caustic soda and potassium hydroxide, as well as in mildly acidic and neutral environments. Thanks to its low carbon content (≤0.02%), N5 nickel pipe provides enhanced resistance to intergranular corrosion during welding and thermal processing, making it an ideal choice for critical chemical and electronic applications.

Manufactured in accordance with ASTM B161, GB/T 5235, and other global standards, N5 nickel pipes are available in both seamless and welded forms. They feature excellent ductility, good mechanical strength, and superb thermal and electrical conductivity. These properties make N5 nickel tubing suitable for use in high-purity piping systems, chemical processing plants, marine engineering, power generation, battery production, and vacuum technology.

• Low carbon for improved weldability

• Outstanding resistance to alkali corrosion

• High thermal and electrical conductivity

• Non-magnetic with excellent ductility

• Suitable for high-purity and vacuum applications

• Caustic soda production (NaOH lines)

• Chlor-alkali and salt production

• Electronics and battery industry

• Food processing and pharmaceutical equipment

• Aerospace fluid transport systems

• Nuclear and vacuum system pipelines

Q1: What is N5 Nickel Pipe?
A: N5 Nickel Pipe is a high-purity nickel alloy pipe with a minimum nickel content of 99.95%. It corresponds to UNS N02201, a low-carbon grade nickel known for its excellent corrosion resistance and weldability, especially in caustic alkaline environments.

Q2: What is the difference between N5 and Nickel 200 or N02200?
A: While all are commercially pure nickel grades, N5 (UNS N02201) has a lower carbon content than N02200 (Nickel 200), which improves its performance in welding and high-temperature environments by minimizing carbide precipitation and intergranular corrosion.

Q3: What industries commonly use N5 Nickel Pipes?
A: N5 Nickel Pipes are widely used in the chemical processing industry, caustic soda production, battery manufacturing, electronics, marine engineering, food processing, and vacuum systems due to their excellent corrosion resistance and purity.

Q4: What standards does N5 Nickel Pipe comply with?
A: N5 Nickel Pipe meets international standards including ASTM B161, GB/T 5235, and JIS H4552. It is available in both seamless and welded types.