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Monel Pipe Fittings

Material: Monel 400, Monel K500, Monel R-405

Standards: ASTM B366, ASME SB366, MSS SP-43, DIN 86019, EN 10253-2

Sizes: 1/2" to 48" (DN15 to DN1200)

Types: Elbow, Tee, Reducer, Cross, Cap, Stub End, Nipple, Union, Coupling, etc.

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Monel Pipe Fittings

What is Monel Pipe Fittings?


Monel is a type of high-performance alloy that contains nickel (at least 65%), copper, iron, and small amounts of other metals. Monel pipes and fittings are made from this alloy and are highly resistant to corrosion, acid, and alkali.

Monel pipe fittings are used in various industries such as chemical processing, marine engineering, oil and gas production, and aerospace. They are used in applications where high resistance to corrosion and extreme temperatures is required.

Some common types of Monel pipe fittings include elbows, tees, reducers, and flanges. They are available in various sizes and pressure ratings to suit different applications.


Monel Pipe Fittings  Available Types & Shapes

Monel is a family of nickel-copper alloys that are known for their high strength, resistance to corrosion, and ability to withstand high temperatures. Monel pipe fittings are used in various industries such as marine engineering, chemical processing, and oil and gas production.

Some common types of Monel pipe fittings include:

  1. Monel 400 pipe fittings

  2. Monel K500 pipe fittings

  3. Monel R-405 pipe fittings


Monel Pipe Fittings Chemical Composition

Monel GradeNickel (plus Cobalt)CopperIronManganeseSiliconCarbonSulfur
Monel 40063.0% min.28.0% - 34.0%2.5% max.2.0% max.0.5% max.0.3% max.0.024% max.
Monel K50063.0% min.27.0% - 33.0%2.0% max.1.5% max.0.5% max.0.25% max.0.010% max.
Monel R-40563.0% min.28.0% - 34.0%2.5% max.2.0% max.0.5% max.0.3% max.0.025% - 0.060%


Monel Pipe Fittings Mechanical properties

Monel GradeTensile Strength (MPa)Yield Strength (MPa)Elongation (%)
Monel 400550-800240-45035-40
Monel K5001100-1350790-120020-25
Monel R405690-850345-55020-35


Monel is a nickel-copper alloy that offers high strength and excellent resistance to corrosion in various environments. Monel pipe fittings are used in industries such as chemical processing, marine engineering, and oil and gas production.

The most commonly used grades of Monel pipe fittings are Monel 400 and Monel K500.

Equivalent grades of Monel 400 pipe fittings:

  • UNS N04400

  • BS 3076 NA13

  • ASTM B564

  • DIN 2.4360

  • EN NiCu30Fe

Equivalent grades of Monel K500 pipe fittings:

  • UNS N05500

  • BS 3076 NA18

  • ASTM B865

  • DIN 2.4375

  • EN NiCu30AlTi

It is important to note that these equivalent grades may vary depending on the standard used and the specific requirements of the application. It is always recommended to consult with a qualified professional to determine the appropriate grade of Monel pipe fittings for your specific application.


Some common shapes of Monel pipe fittings include:

  1. Monel 90 degree elbow

  2. Monel 45 degree elbow

  3. Monel Tee

  4. Monel Reducer

  5. Monel Coupling

  6. Monel Union

  7. Monel Cross

  8. Monel Stub End

  9. Monel Cap

  10. Monel Nipple

These fittings can be available in various sizes and specifications depending on the application requirements.

Monel Pipe Fittings Specification

Monel pipe fittings are available in various grades such as Monel 400, Monel K500, and Monel R-405. The specifications for Monel pipe fittings vary depending on the grade and application requirements.

Here are some common specifications for Monel pipe fittings:

  1. Material: Monel 400, Monel K500, Monel R-405

  2. Standards: ASTM B366, ASME SB366, MSS SP-43, DIN 86019, EN 10253-2

  3. Sizes: 1/2" to 48" (DN15 to DN1200)

  4. Types: Elbow, Tee, Reducer, Cross, Cap, Stub End, Nipple, Union, Coupling, etc.

  5. Pressure Ratings: Class 150, Class 300, Class 600, Class 900, Class 1500, Class 2500

  6. End Connections: Butt Weld, Socket Weld, Threaded (NPT/BSP), Flanged, etc.

  7. Surface Finish: Polished, Annealed, Pickled, Sand Blasted, etc.

It is important to ensure that the Monel pipe fittings meet the required specifications for the intended application. The manufacturer or supplier of the fittings should be able to provide detailed information on the specifications and suitability of the fittings for specific applications.

Monel Pipe Fittings Application

Monel is a type of nickel-copper alloy that offers excellent corrosion resistance, especially in highly corrosive environments such as seawater, acids, and alkalis. Monel pipe fittings are commonly used in various applications where high resistance to corrosion, erosion, and high-temperature environments are required.

Some of the typical applications of Monel pipe fittings include:

  1. Marine applications: Monel pipe fittings are commonly used in marine applications such as seawater desalination plants, offshore oil and gas platforms, and shipbuilding due to their excellent resistance to seawater corrosion.

  2. Chemical processing: Monel pipe fittings are also used in chemical processing industries for handling highly corrosive chemicals such as hydrochloric acid, sulfuric acid, and other strong acids.

  3. Power generation: Monel pipe fittings are commonly used in power plants and other energy-related industries due to their high resistance to corrosion and erosion caused by high-temperature steam and other corrosive fluids.

  4. Aerospace and defense: Monel pipe fittings are also used in aerospace and defense applications due to their high strength, toughness, and resistance to corrosion.

Overall, Monel pipe fittings are ideal for any application where excellent corrosion resistance and high strength are required in harsh environments.


SSM manufactures and supplies Monel pipe fittings in various sizes and materials. We have a strong technical support team and industrial workers to ensure product quality and delivery. Please feel free to call us for inquiries about Monel pipe fittings.

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