Midland Alloys Inc., based in Mumbai, India, is a reliable Nickel 200 Tube Manufacturer in India and global exporter of ASTM B161 UNS N02200 Alloy 200 Tubes. These tubes, made from pure wrought nickel, offer excellent resistance to alkalis and strong mechanical strength. We provide instrumentation, heat exchanger and seamless, welded tubes with precise tolerances and spotless surface finishes. Specifications, chemical composition, mechanical characteristics, a schedule chart, and a performance comparison with Nickel 201 are all included on this page. We guarantee complete MTC traceability, stringent quality control, worldwide delivery and custom sizing.

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What is Nickel Alloy 200 Tubes?

A commercially available wrought nickel alloy with a 99.6% nickel content, Nickel Alloy 200 is known for its potent resistance to caustic alkalis. This non ferrous alloy is perfect for corrosive and clean environment because it has low gas content and high thermal and electrical conductivity. Electronics, marine system and chemical processing all make extensive use of ASTM B161 UNS N02200 tubing. Nickel Alloy 200 Thin wall and seamless/welded tubes Under high-temperature and high-purity conditions, UNS N02201 Seamless Tubes offer stability. Nickel 200 Round Tubes are used by industries for reliable performance. We provide dependable material for accurate, tubing application as one of India’s top supplier of B161 UNS N02200 tubing.

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Benefits of Nickel Alloy 200 Tubes

Nickel Alloy 200 Tubes provide strong corrosion resistance, thermal stability and electrical conductivity. Their unique properties make them ideal for harsh industrial and high-temperature environments.

  • Strong corrosion resistance in caustic and alkaline environments
  • Efficient thermal conductivity for heat exchangers and condensers
  • Excellent electrical conductivity for power and electronic systems
  • Resists stress corrosion cracking under mechanical and chemical stress
  • Maintains mechanical strength at cryogenic and high temperatures
  • Low gas content suitable for vacuum and food-grade applications
  • Non-magnetic nature fits sensitive electrical and electronic setups
Nickel Alloy 200 Tubes vs Other Grades

Nickel 200 offers high purity and excellent conductivity, making it ideal for electrical and chemical use. Compared to Nickel 201, it handles lower temperatures better but isn’t suited for high-heat stress. In Nickel 200 vs Inconel, Inconel 600 outperforms at high temperatures but costs more. Nickel vs Monel shows Monel 400 as better for marine and salt-heavy environments. Stainless steels like SS 304L are cheaper and stronger but less corrosion-resistant in reducing media. Nickel 200 fits best where purity and conductivity matter most.

Nickel 200 Tube Specifications

Manufactured as per ASTM Standards: ASTM B161, ASTM B163, ASME SB161, SB729, and DIN / EN Standards: DIN 17751 / EN 10216-5, they are available in cut-to-length, random, and fixed lengths.

The size range, standards, and type availability of Nickel Alloy 200 Tubes are covered in this section’s essential specifications. For industrial use, these tubes are available in seamless, welded and ERW forms with strict tolerance control.

Finish
Sizes in Stock

Seamless Tube OD : 1/8 -12" NPS
Welded Tube OD : 6.00 mm OD up to 914.4 mm OD
EFW Tube Size : 4 to 219mm W. T.: 0.5 to 20mm

ASTM Standard
Standard

ASTM A161, ASME SB161

Process
Manufacturing Process

Seamless / Welded / ERW / Fabricated / CDW / 100% X Ray Welded

Form
Form

Round, Square, Rectangular, Hydraulic Etc

Length
Length

Single Random, Double Random & Cut Length.

End Icon
End

Plain End, Beveled End, Threaded

Schedule
Schedule

SCH20, SCH30, SCH40, STD, SCH80, XS, SCH60, SCH80, SCH120, SCH140, SCH160, XXS

Finish
Surface Finish

No. 2B - Mill finish/ Matte finish, No.8 - Mirror finish, No. 4 - Brushed finish, Bright, Annealing, Polished, Mirror

Types of Nickel Alloy 200 Tubes

Nickel Alloy 200 Tubes are available in a range of manufacturing forms and cross-sectional shapes. Each type serves specific structural or design requirements, depending on the system or process they support.

Manufacturing Types

  • Seamless Tubes
    Seamless Tubes

    Produced without welds, these tubes offer uniform structure and are ideal for high-pressure conditions.

  • Welded Tubes
    Welded Tubes

    Formed by rolling and welding, they suit standard pressure applications where cost-efficiency matters.

  • ERW Tubes
    ERW Tubes

    Electric Resistance Welded tubes have a consistent wall and smooth finish, suitable for general engineering use.

  • EFW Pipe
    EFW Pipe

    Made by fusion welding using electric current, usually for larger diameters.

  • Capillary Tubes
    Capillary Tubes

    These are ultra-thin tubes designed for precision control in fluid and gas systems.

Tubes Forms

  • Round Tubes
    Round Tubes

    Standard circular section tubes used in most structural and industrial designs.

  • Square Tubes
    Square Tubes

    Offer sharp angles and uniform flat sides, suited for frames and support assemblies.

  • Instrumentation Tubes
    Instrumentation Tubes

    Used for accurate flow measurement, these tubes come with high dimensional precision and clean internal finish.

  • Heat Exchanger Tubes
    Heat Exchanger Tubes

    Manufactured with exact wall thickness and diameter tolerances for optimal thermal flow.

  • Rectangular Tubes
    Rectangular Tubes

    Provide a wider aspect ratio for space-saving structural builds or panel support.

  • Hydraulic Tubes
    Hydraulic Tubes

    Designed for fluid transmission systems, these tubes have smooth internal surfaces and consistent pressure tolerance.

Contact Midland Alloys Inc. for Your Nickel Alloy 200 Tubes Needs

Contact us today to discuss how Nickel Alloy 200 Tubes can benefit your application. Whether you need guidance in selecting the right Tubes or have specific requirements, our team of experts is here to help you find the optimal solution.

Technical Details & Delivery Condition

Nickel 200 Tubes are made from commercially pure nickel with a minimum of 99.0% Nickel content. The composition includes small amounts of elements like iron, copper, and manganese, which improve workability and performance in corrosive and high-temperature environments. Here’s a breakdown of its chemical composition:
Grade ASTM B163 Nickel 200
min max
C 0.15
Mn 0.35
Si 0.1
P
S 0.01
Mg
Ti
Ni 99.0
Cu 0.25
Fe 0.4

Nickel 200 seamless tubes offer a strong combination of high tensile strength, excellent ductility, and good impact resistance, even in tough conditions. These characteristics make the tubes perfect for environments involving thermal processing, chemical handling, and pressure systems. A table highlighting its primary mechanical values can be found below:

GradeASTM B163 Nickel 200
Tensile Strength (MPa) minPsi – 67000 , MPa – 462
Yield Strength 0.2% Proof (MPa) minPsi – 21500 , MPa – 148
Elongation (% in 50mm) min45%

Surface finish matters more than just appearance—it affects cleaning, corrosion resistance, and how tubes fit into different systems. Nickel 200 tubes come in several finishes to suit industrial, chemical, and thermal applications, helping users match the right tube to their needs. Here’s a quick overview of the available finish types:

AlloyProduct formDimension
NICKEL 200 (99.0 Ni min)Tube; cold drawn, annealed, seamless16.0 x 1.5 mm
NICKEL 200 (99.0 Ni min)Tube; cold drawn, annealed33.4 x 3.38 mm (1″nb sch40s)
NICKEL 200 (99.0 Ni min)Tube; cold drawn, annealed48.26 x 2.77 mm (1½”nb sch10s)
NICKEL 200 (99.0 Ni min)Tube; cold drawn, annealed60.33 x 2.77 mm (2″nb Sch10s)
NICKEL 200(99.0 Ni min)Tube; cold drawn, annealed60.33 x 3.91 mm (2″nb sch40s)
NICKEL 200 (99.0 Ni min)Tube; cold drawn, annealed88.9 x 3.05 mm (3″nb Sch10s)
NICKEL 200 (99.0 Ni min)Tube; cold drawn, annealed114.3 x 3.05 mm (4″nb Sch10s)

Nickel 200 goes by different names in global markets, but the material stays the same. Buyers can match specifications across regions without relying on guesswork being aware of its equivalent grades. This guarantees consistent performance regardless of the tube’s source.

STANDARDUNSWERKSTOFF NR.AFNORENJISBSGOST
Nickel 201 PipeN022012.4068LC-Ni 99NW 2201NA 12НП-2

Stainless Steel Tubes Grades We Offer

Difference Between 200 and 201 Nickel Alloy Tubes

Nickel 200 and Nickel 201 tubes are both made from commercially pure nickel, offering strong resistance to alkalis and corrosion. The key difference lies in their carbon content—Nickel 201 contains less carbon than Nickel 200. This lower carbon helps Nickel 201 resist graphitisation at high temperatures, making it safer for use in thermal processing. Nickel 200, with slightly higher carbon, is better for handling caustic solutions at moderate temperatures without risk of brittleness.

Use Nickel 200 in chemical storage, food handling, or caustic production where heat isn’t extreme. Choose Nickel 201 for applications like heat exchangers or power plants, where tubes face steady high-temperature exposure

Manufacturing Process of Nickel Alloy 200 Tubes

The manufacturing of Nickel Alloy 200 tubes involves a precise, step-by-step process to ensure high purity, strength, and performance in demanding applications.

  • Raw Material Preparation
    Pure nickel is melted and formed into billets or slabs. These are cleaned to remove surface impurities and prepare for forming.
  • Cold Working
    The nickel is drawn or rolled into tube form without heat. This boosts strength and gives a uniform grain structure.
  • Annealing & Surface Treatment
    Tubes are heat-treated to relieve stress from cold working. The surface is cleaned to remove scale and improve finish.
  • Sizing & Cutting
    Tubes are sized accurately and cut into specified lengths. This ensures uniform diameter and wall thickness as per application.
  • Testing, Inspection & Packaging
    Each tube undergoes tests like hydrostatic, eddy current, and visual checks. Final products are packed safely for delivery.
Round Bar

Round Bar

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Analytic

Analytic

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Cut to Length

Cut to Length

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Centering

Centering

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Heating

Heating

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Perforation

Perforation

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Inspection of Size

Inspection of Size

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Pickling

Pickling

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Inspection of Surface

Inspection of Surface

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Lubricating

Lubricating

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Cold Drawing (Cold Rolling)

Cold Drawing (Cold Rolling)

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Degreasing

Degreasing

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Annealing

Annealing

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Straightening

Straightening

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Cut

Cut

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Pickling / Passivating

Pickling / Passivating

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Inspection

Inspection

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Analytic

Analytic

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Marking

Marking

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Packing & Shipping

Packing & Shipping

Applications and Uses of Nickel Alloy 200 Tubes

Nickel Alloy 200 tubes serve across multiple industries due to their excellent resistance to corrosion, purity, and mechanical strength. In the pharmaceutical sector, they maintain sterile environments in fluid transfer systems and cleanroom processes. Rail transport uses these tubes in brake lines, fuel systems, and frames for their strength and reliability under constant vibration. The real estate industry applies them in HVAC systems and plumbing due to their long-term durability and resistance to rust. In healthcare, they support medical gas lines and sterilised water distribution with minimal contamination risk. Chemical plants rely on these tubes in heat exchangers and pipelines to handle strong acids and alkalis. 

Customization Options & Stock Availability

Nickel Alloy 200 tubes from Midland Alloys Inc. are available in custom diameters, wall thicknesses, and lengths to suit specific project needs. Options include cut-to-length, special OD/ID ranges, and finishes like annealed, pickled, or polished. End configurations such as plain, beveled, or threaded are also provided. The company maintains stock from 1/8″ NB to 30″ NB in SCH 5 to SCH XXS, with both seamless and welded types ready for quick dispatch. Small or bulk orders are accepted with flexible MOQs. In-stock items ship the same day; custom batches follow committed timelines.

Why Choose Midland Alloys Inc. for Nickel Alloy 200 Tubes

Midland Alloys Inc. is a leading Indian manufacturer and exporter of high-quality Nickel Alloy 200 Tubes. We ensure precise manufacturing with full compliance to ASTM B161, EN standards, and ISO 9001:2015 processes. Buyers can request custom lengths, end finishes, special schedules, or surface treatments as per project needs. With a strong export network across the Gulf, Europe, Africa, and Southeast Asia, we serve both small and large orders efficiently. All tubes come with mill test certificates, in-house quality checks, and third-party inspection options. We focus on timely dispatch, technical assistance, and long-term supply partnerships built on trust and consistent quality.

FAQS

Nickel Alloy 200 Tubes have no fixed shelf life but must be stored in dry, covered areas to prevent surface oxidation.

Yes, Nickel 200 tubing is fully recyclable and considered environmentally friendly due to its long life and reusability.

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