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NICKEL ALLOY STEEL 201 N022001 2.4061 ASTM B161 B163 SEAMLESS PIPE ANF TUBE

Seamless Nickel 201 Nickel Alloy Pipe

Seamless Nickel 201 Nickel Alloy Pipe is made from Nickel Alloy N02201, a low-carbon wrought nickel. With an ultra-low carbon content (≤0.01%), it is designed for temperatures above 600°F (315°C) to prevent embrittling grain-boundary films. This ≥99.0% nickel alloy offers excellent corrosion resistance, thermal/electrical conductivity, and mechanical properties for high-temperature and critical corrosion services.

① STANDARD: ASTM B163 ASTM B161

② OD RANGE : 6-457 MM
③ THICKNESS RANGE: 1-45 MM

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Introduction

Product Introduction

Seamless Nickel 201 Nickel Alloy Pipe is made from Nickel Alloy N02201, a low-carbon wrought nickel. With an ultra-low carbon content (≤0.01%), it is designed for temperatures above 600°F (315°C) to prevent embrittling grain-boundary films. This ≥99.0% nickel alloy offers excellent corrosion resistance, thermal/electrical conductivity, and mechanical properties for high-temperature and critical corrosion services.

Manufactured to meet the rigorous standards of ASTM B161 and ASTM B163, Nickel 201 seamless pipes and tubes undergo a precision seamless production process, ensuring uniform wall thickness, superior mechanical properties, and consistent performance. This alloy's unique combination of high ductility, excellent thermal and electrical conductivity, and remarkable resistance to a wide range of corrosive media makes it an indispensable material in industries where reliability and longevity are non-negotiable.

Zhejiang Xintongda Special Steel Manufacturing Co., Ltd. takes pride in delivering Nickel 201 seamless products that adhere to the highest quality standards, offering customers precision-engineered solutions for their most demanding applications.

Main Product Parameters

Chemical Composition

Grade	Ni	Cu	Fe	Mn	C	Si	S
N02200	≥99.00	≤0.25	≤0.40	≤0.35	≤0.02	≤0.35	≤0.01

Mechanical Properties (as per ASTM B163)

Grade	Condition	Tensile Strength ksi (MPa)	Yield Strength ksi (MPa)	Elongation (%)	Rockwell Hardness
N02200	Annealed	≥50 (345)	≥12 (83)	≥40	-
N02200	Stress-relieved	≥60 (414)	≥30 (207)	≥15	B62 max

Physical Properties

Property	Value
Density	8.9 g/cm³
Melting Point	1435-1446°C
Thermal Conductivity (20°C)	71.1 W/m·K
Electrical Resistivity (20°C)	68.4 nΩ·m
Coefficient of Thermal Expansion (20-100°C)	13.3 µm/m·°C
Elastic Modulus	207 GPa

Dimensions

Outer Diameter Range: 6-457 mm
Wall Thickness Range: 1-45 mm
Custom lengths available upon request

Product Features

Exceptional Corrosion Resistance

Nickel 201 demonstrates outstanding resistance to a wide array of corrosive media, including:

Neutral and moderately reducing environments
Alkaline solutions, such as caustic soda
Non-oxidizing acids, including hydrofluoric and hydrochloric acids (at specific concentrations)
Dry gases at room temperature, making it suitable for various gaseous applications

This alloy's high nickel content forms a stable passive oxide film, protecting it from corrosion and ensuring longevity even in harsh conditions.

High-Temperature Performance

Thanks to its low carbon content (≤0.02%), Nickel 201 is ideally suited for service temperatures above 316°C (600°F), where higher-carbon alloys like Nickel 200 may suffer from embrittlement. It maintains excellent ductility and mechanical properties at elevated temperatures, making it a reliable choice for high-temperature applications.

Excellent Mechanical Properties

Nickel 201 offers a unique balance of strength and ductility:

In the annealed condition, it exhibits a minimum tensile strength of 345 MPa and elongation of 40%, allowing for easy fabrication and forming
The stress-relieved condition enhances tensile strength to 414 MPa while maintaining sufficient ductility for demanding applications
Its ferromagnetic nature and high thermal and electrical conductivity further expand its range of applications

Fabrication and Weldability

Nickel 201 can be readily formed, machined, and welded using standard techniques:

It responds well to cold working, with the ability to achieve higher strengths through stress relieving
Proper welding practices ensure the maintenance of its corrosion resistance, making it suitable for complex fabrications
Post-weld annealing is often recommended to restore optimal ductility and corrosion resistance

Versatility and Reliability

From offshore oil drilling to pharmaceutical equipment, Nickel 201's versatile properties make it a trusted choice in industries where performance and reliability are critical. Its ability to withstand a wide range of operating conditions, combined with its ease of fabrication, positions it as a go-to material for challenging applications.

Application Scenarios

Offshore Oil and Gas

Subsea pipelines and equipment
Corrosion-resistant components in offshore platforms
Seawater handling systems

Chemical Processing

Equipment for handling caustic solutions and non-oxidizing acids
Reactor vessels and storage tanks
Heat exchangers and condensers in chemical plants

Power Generation

High-temperature components in power plants
Steam generators and condensers
Corrosion-resistant parts in turbine systems

Pharmaceutical and Food Industries

Equipment for manufacturing pharmaceutical products
Sanitary piping and processing equipment in the food industry
Containers and vessels for handling corrosive chemicals

Marine and Desalination

Seawater desalination plant components
Marine hardware and offshore structures
Equipment for handling brackish water

Aeronautical and Aerospace

High-temperature components in aircraft engines
Corrosion-resistant parts in aerospace applications
Electrical and thermal management systems

Pulp and Paper Industry

Equipment for handling corrosive pulping chemicals
Dryer sections and heat exchangers in paper mills
Piping systems for process fluids

FAQ

What is the difference between Nickel 200 and Nickel 201?

The primary difference lies in their carbon content:

Nickel 200 has a carbon content of ≤0.15%
Nickel 201 has a lower carbon content of ≤0.02%

This lower carbon content in Nickel 201 prevents inter-granular carbon embrittlement at high temperatures, making it suitable for service above 316°C (600°F), where Nickel 200 is not recommended.

Is Nickel 201 magnetic?

Yes, Nickel 201 is ferromagnetic, a property that makes it useful in applications where magnetic characteristics are required.

What types of corrosion is Nickel 201 resistant to?

Nickel 201 is highly resistant to:

Corrosion in neutral to moderately reducing environments
Attack by alkaline solutions, including caustic soda
Pitting and crevice corrosion in many media
Oxidation at elevated temperatures

Can Nickel 201 be welded?

Yes, Nickel 201 can be welded using standard welding techniques, including TIG, MIG, and stick welding. Proper welding practices, such as using appropriate filler materials and controlling heat input, are essential to maintain its corrosion resistance and mechanical properties. Post-weld annealing is often recommended to restore optimal ductility.

What is the maximum service temperature for Nickel 201?

Nickel 201 can be used at temperatures well above 316°C (600°F), where its low carbon content prevents embrittlement. It maintains good mechanical properties and corrosion resistance at elevated temperatures, making it suitable for a wide range of high-temperature applications.

How is Nickel 201 pipe typically packaged for shipment?

Nickel 201 pipes and tubes are carefully packaged to ensure protection during transportation:

Ply wooden boxes for heavy-duty protection
PE fabric bundles for grouped items
Standard seaworthy export packing for international shipments
Plastic bags or other protective coverings as required

What certifications are provided with Nickel 201 products?

Standard mill test certificates are provided with all Nickel 201 products. Additionally, 3.2 Certification can be supplied upon request, ensuring compliance with specific industry standards and customer requirements.

Is Nickel 201 suitable for use in food and pharmaceutical applications?

Yes, Nickel 201's corrosion resistance, non-reactive nature, and ability to maintain hygiene make it an excellent choice for food processing and pharmaceutical manufacturing equipment. It is compatible with cleaning and sterilization processes, ensuring product safety and quality.