Xi'an Dongmeng Group Co., Ltd. is one of the most reliable manufacturers and suppliers of ASTM B161 Nickel Seamless Pipe & Tube Supplier | UNS N02200 / N02201 Pure Nickel Tubing Manufacturer in China, also supports customized service. With abundant experience, we warmly welcome you to wholesale cheap products in stock here and get free sample from our factory. For price consultation, contact us.
Are you searching for a piping solution that can withstand the most aggressive corrosive media, especially caustics and alkalis? The answer is ASTM B161 Seamless Nickel Pipe and Tube. Fabricated from pure, low-carbon nickel (Nickel 200/201), this seamless tubing is engineered to overcome the challenges of extreme chemical and high-temperature/pressure environments. By eliminating the weak point of a weld seam, it provides a robust solution to downtime and safety risks caused by material failure. Choose the long-term reliability of nickel for your most critical applications.
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ASTM B161 Nickel Seamless Pipe & Tube Overview
ASTM B161 Nickel Seamless Pipe and Tube products are manufactured from commercially pure nickel grades including Nickel 200 (UNS N02200) and Nickel 201 (UNS N02201). These high-performance nickel alloy pipes are widely used in chemical processing, caustic alkali handling, aerospace systems, food processing equipment, heat exchangers, and electronic industries where exceptional corrosion resistance and material purity are required.
Compared with conventional stainless steel tubing, ASTM B161 nickel seamless pipe offers superior resistance to caustic alkalis, dry fluorine, and reducing chemicals. The material also provides excellent thermal conductivity, stable mechanical strength, and outstanding fabrication performance.
As a professional industrial nickel alloy manufacturer, Xi'an Dongmeng Group Co., Ltd supplies precision-engineered Nickel 200 seamless pipe, Nickel 201 tube, and custom nickel alloy tubing solutions for global EPC contractors, industrial distributors, fabrication workshops, and OEM buyers.
Mechanical properties

chemical requirements

mechanical properties

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Processing Performance Analysis
Excellent Fabrication Capability for Industrial Manufacturing
ASTM B161 Nickel Seamless Tubes exhibit excellent hot and cold working performance. The material can be easily processed into:
Precision seamless pipes
Heat exchanger tubes
U-bend tubing
Thin wall capillary tubes
CNC machined nickel components
The stable metallurgical structure ensures reliable dimensional tolerance during rolling, drawing, bending, and CNC machining operations.
Machining Advantages
Stable cutting performance
Smooth surface finish
Excellent forming capability
Reduced cracking risk
Suitable for automated CNC processing
For industrial buyers requiring custom nickel tubing, the material supports precision fabrication with strict tolerance control.
Welding Performance Analysis
Reliable Welding Characteristics for Industrial Systems
Nickel 200 and Nickel 201 seamless pipes provide excellent weldability using standard industrial welding methods:
GTAW / TIG Welding
MIG Welding
Plasma Arc Welding
Resistance Welding
Low carbon Nickel 201 tube is particularly suitable for high-temperature welded systems where graphite precipitation must be minimized.
Welding Benefits
Stable welded joint strength
Low porosity tendency
Good thermal stability
Excellent post-weld corrosion resistance
Suitable for pressure piping systems
Corrosion Resistance Performance
Outstanding Resistance in Caustic and Reducing Environments
One of the major advantages of ASTM B161 pure nickel seamless pipe is its exceptional corrosion resistance in highly aggressive industrial media.
Excellent Resistance To:
Caustic soda
Sodium hydroxide
Potassium hydroxide
Dry chlorine
Hydrogen chloride
Organic acids
Salt solutions
Industrial Corrosion Advantages
Excellent alkali corrosion resistance
Strong resistance to stress corrosion cracking
Long service life in chemical plants
Stable performance in high-purity systems
Reduced maintenance and replacement costs
These characteristics make Nickel 200 seamless pipe suppliers highly demanded in alkali chemical plants and chlor-alkali industries.
Industry Applications
Chemical Processing Industry
Applications
Caustic soda pipelines
Chemical reactors
Heat exchangers
Storage tanks
Alkali transfer systems
Benefits
Excellent alkali resistance
Long service life
Reduced corrosion failure risk
Aerospace Industry
Applications
Aircraft fluid systems
High-temperature tubing
Engine support systems
Precision nickel components
Benefits
Stable high-temperature performance
Excellent fabrication stability
Reliable structural integrity
Electronics Industry
Applications
Semiconductor equipment
Battery production lines
Electronic processing systems
High-purity transport pipelines
Benefits
High material purity
Excellent conductivity
Stable surface quality
Power Generation Industry
Applications
Heat recovery systems
Boiler tubing
Nuclear auxiliary systems
Industrial thermal equipment
Benefits
Excellent heat transfer
Corrosion resistance
Long-term operational reliability
Product Specifications
| Type | OD Range | Wall Thickness | Length |
|---|---|---|---|
| Seamless Pipe | 6mm – 630mm | 0.5mm – 40mm | Max 12m |
| Seamless Tube | 4mm – 127mm | 0.3mm – 10mm | Custom |
| U Tube | Custom | Custom | Custom |
| Coil Tube | 1mm – 25mm | 0.2mm – 2mm | Custom |
Pipe Schedule
SCH5S
SCH10
SCH20
SCH40
SCH80
SCH160
XXS
Surface Finish
Annealed & Pickled
Bright Annealed
Polished
Sand Blasted
Manufacturing Standards
International Standards
ASTM B161
ASME SB161
ASTM B163
ASTM B725
ASTM B829
DIN 17751
EN 10216
JIS Industrial Standards
Production Capability
Factory Manufacturing Strength
Xi'an Dongmeng Group Co., Ltd provides integrated nickel alloy production capabilities:
Hot rolling production lines
Cold drawing systems
Precision annealing furnaces
Eddy current testing systems
Ultrasonic inspection equipment
Spectrometer analysis laboratory
CNC machining workshops
Available Supply Forms
Nickel seamless pipes
Nickel welded tubes
Nickel plates
Nickel bars
Nickel coils
Precision machined components
Inspection & Quality Assurance
Industrial Quality Control System
Every batch of ASTM B161 Nickel Seamless Pipe undergoes strict inspection procedures:
Inspection Items
PMI Positive Material Identification
Chemical composition analysis
Mechanical property testing
Hydrostatic pressure testing
Eddy current testing
Ultrasonic flaw detection
Dimensional inspection
Surface quality inspection
Third-Party Inspection Support
SGS
TUV
BV
Intertek
Quality Documentation
EN 10204 3.1 Certificate
Mill Test Certificate (MTC)
Raw material traceability
Export inspection reports
Packaging & Shipping
Export Standard Industrial Packaging
To ensure safe international transportation, all nickel alloy pipes and tubes are packed according to export standards.
Packaging Methods
Waterproof plastic wrapping
Wooden export crates
Fumigation-free plywood cases
End cap protection
Steel strip bundling
Customized labeling
Shipping Support
Sea freight
Air freight
Railway logistics
Door-to-door delivery
Container loading optimization
Why Choose Us
Xi'an Dongmeng Group Co., Ltd
Professional Nickel Alloy Supplier
Rich export experience in nickel alloys
Factory direct pricing
Strict quality control system
Complete international standards
Fast production lead time
OEM & custom processing support
Stable global supply capability
Technical support for industrial projects
B2B Procurement Advantages
Flexible MOQ support
Fast quotation response
Professional export documents
Multi-language sales support
Global logistics coordination
FAQ
What is ASTM B161 Nickel Pipe?
ASTM B161 is the standard specification for seamless pipes and tubes made from commercially pure nickel alloys including Nickel 200 and Nickel 201.
What is the difference between Nickel 200 and Nickel 201?
Nickel 201 contains lower carbon content, providing better resistance to graphite precipitation in high-temperature applications.
Is Nickel 200 suitable for caustic soda applications?
Yes. Nickel 200 offers excellent resistance to caustic alkali corrosion and is widely used in caustic soda production systems.
Can you provide custom nickel seamless tubes?
Yes. We support customized OD, wall thickness, length, surface finish, and CNC machining services.
What industries use ASTM B161 nickel seamless pipes?
Typical industries include chemical processing, aerospace, electronics, power generation, food processing, and pharmaceutical manufacturing.
Do you provide third-party inspection certificates?
Yes. SGS, TUV, BV, and other third-party inspection reports are available upon request.
What surface finishes are available?
We provide annealed & pickled, bright annealed, polished, and customized surface finishes.
Can you supply nickel alloy plates, bars, and fittings together?
Yes. We provide one-stop nickel alloy material solutions including pipes, tubes, plates, bars, flanges, and fittings.
Contact Us
Xi'an Dongmeng Group Co., Ltd
Professional Nickel Alloy Products Manufacturer & Exporter
Phone / WhatsApp / WeChat: +8615769214734
Email: office@dongmjd.com
Main Products
Nickel Alloy Pipe & Tube
Stainless Steel Products
Copper Alloy Materials
Titanium Alloys
Precision CNC Metal Components
Export Markets
Europe • North America • Middle East • Southeast Asia • South America
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