Nickel Alloy Pipes Fittings

What is Nickel Alloy Pipes Fittings?

Nickel alloy pipes fittings are a type of piping components made from various nickel-based alloys. These fittings are used to connect and control the flow of fluids or gases through a piping system in high-temperature, high-pressure, and corrosive environments.

Nickel alloys are known for their exceptional corrosion resistance, high-temperature strength, and excellent mechanical properties. Nickel alloy pipes fittings are designed to withstand extreme temperatures, pressures, and corrosive conditions, making them suitable for use in industries such as chemical processing, petrochemicals, oil and gas, power generation, and aerospace.

Some of the most commonly used nickel alloy grades for pipes fittings include Alloy 200, Alloy 400, Alloy K500, Alloy 600, Alloy 625, Alloy 718, Alloy C-276, and Alloy X. These materials offer different levels of strength, ductility, and corrosion resistance, allowing them to be used in a wide range of applications. Nickel alloy pipes fittings are available in various shapes and sizes, including elbows, tees, reducers, and flanges, to fit different piping configurations.

Nickel Alloy Pipes Fittings Available Types & Shapes

Nickel alloy pipes fittings are available in a wide range of types and shapes to suit various applications and piping configurations. Some of the most common types and shapes of nickel alloy pipes fittings include:

1. Elbows: Elbows are used to change the direction of the piping system. They are available in various degrees of angle, including 45 degrees, 90 degrees, and 180 degrees.

2. Tees: Tees are used to connect three pipes together at right angles. They are available in different types, such as equal tee, reducing tee, and barred tee.

3. Reducers: Reducers are used to connect pipes of different sizes together. They come in concentric and eccentric types, and they can be used to reduce the flow of fluid or gas.

4. Flanges: Flanges are used to connect pipes or valves to other equipment, such as pumps, tanks, or vessels. They are available in various types, including slip-on, weld neck, blind, and threaded.

5. Couplings: Couplings are used to connect two pipes together. They come in various types, including full coupling and half coupling.

6. Caps: Caps are used to close the end of the pipe. They come in various shapes, including dome-shaped and flat-shaped.

7. Crosses: Crosses are used to connect four pipes together. They come in different types, such as equal cross and reducing cross.

Nickel Alloy Pipes Fittings Chemical Composition

Here is an overview of the chemical composition of some commonly used nickel alloy pipe fittings:

1. Inconel 600: This nickel-chromium alloy typically contains approximately 72% nickel, 14-17% chromium, 6-10% iron, and small amounts of other elements such as copper, manganese, and silicon.

2. Incoloy 800: This nickel-iron-chromium alloy typically contains approximately 30-35% nickel, 19-23% chromium, and 39.5-44.5% iron, as well as small amounts of other elements such as copper and titanium.

3. Hastelloy C276: This nickel-molybdenum-chromium alloy typically contains approximately 50% nickel, 14.5-16.5% molybdenum, 15-17% chromium, and small amounts of other elements such as iron and tungsten.

4. Monel 400: This nickel-copper alloy typically contains approximately 63% nickel, 28-34% copper, and small amounts of other elements such as iron, manganese, and silicon.

It's important to note that these percentages may vary depending on the specific manufacturer and grade of nickel alloy pipe fittings. It's always best to refer to the manufacturer's specifications for the exact chemical composition of the fittings you are working with.

Nickel Alloy Pipes Fittings Mechanical properties 

Here is an overview of the typical mechanical properties of some commonly used nickel alloy pipe fittings:

1. Inconel 600: This nickel-chromium alloy has a high tensile strength and excellent resistance to corrosion and oxidation at high temperatures. Typical values for the ultimate tensile strength range from 550-690 MPa (80-100 ksi), with a yield strength of 240-415 MPa (35-60 ksi), and an elongation of 30-45%.

2. Incoloy 800: This nickel-iron-chromium alloy has good strength and resistance to high-temperature oxidation and carburization. Typical values for the ultimate tensile strength range from 520-690 MPa (75-100 ksi), with a yield strength of 205-310 MPa (30-45 ksi), and an elongation of 30-45%.

3. Hastelloy C276: This nickel-molybdenum-chromium alloy has excellent corrosion resistance in a wide range of environments, as well as good mechanical properties at high temperatures. Typical values for the ultimate tensile strength range from 690-760 MPa (100-110 ksi), with a yield strength of 345-415 MPa (50-60 ksi), and an elongation of 40-50%.

4. Monel 400: This nickel-copper alloy has good mechanical properties and excellent resistance to corrosion in various environments, including seawater. Typical values for the ultimate tensile strength range from 480-620 MPa (70-90 ksi), with a yield strength of 170-345 MPa (25-50 ksi), and an elongation of 35-50%.

Equivalent Grades of Nickel Alloy Pipes Fittings

There are several equivalent grades of nickel alloy pipes fittings, which are used in different countries and industries. The following are some commonly used equivalent grades of nickel alloy pipes fittings:

1. Inconel 600: Equivalent grades include ASTM B166, ASME SB166, AMS 5665, BS 3075NA14, and EN 2.4816.

2. Incoloy 800: Equivalent grades include ASTM B564, ASME SB564, BS 3076NA15, and EN 1.4876.

3. Hastelloy C276: Equivalent grades include ASTM B574, ASME SB574, AMS 5750, BS 3076NA12, and EN 2.4819.

4. Monel 400: Equivalent grades include ASTM B564, ASME SB564, BS 3076NA13, and EN 2.4360.

Nickel Alloy Pipes Fittings Specification

Nickel alloy pipes and fittings are commonly used in high-temperature and high-pressure applications where resistance to corrosion and oxidation is required. The specifications for nickel alloy pipes and fittings vary depending on the specific application and industry requirements, but some common specifications are:

1. ASTM B161 - Standard Specification for Nickel Seamless Pipe and Tube

2. ASTM B163 - Standard Specification for Seamless Nickel and Nickel Alloy Condenser and Heat-Exchanger Tubes

3. ASTM B165 - Standard Specification for Nickel-Copper Alloy (UNS N04400) Seamless Pipe and Tube

4. ASTM B366 - Standard Specification for Factory-Made Wrought Nickel and Nickel Alloy Fittings

5. ASTM B407 - Standard Specification for Nickel-Iron-Chromium Alloy Seamless Pipe and Tube

6. ASTM B423 - Standard Specification for Nickel-Iron-Chromium-Molybdenum-Copper Alloy (UNS N08825 and N08221) Seamless Pipe and Tube

7. ASTM B444 - Standard Specification for Nickel-Chromium-Molybdenum-Columbium Alloys (UNS N06625 and UNS N06852) and Nickel-Chromium-Molybdenum-Silicon Alloy (UNS N06219) Seamless Pipe and Tube

8. ASTM B564 - Standard Specification for Nickel Alloy Forgings

9. ASME SB-366 - Specification for Factory-Made Wrought Nickel and Nickel Alloy Fittings

10. ASME SB-444 - Specification for Nickel-Chromium-Molybdenum-Columbium Alloys (UNS N06625 and UNS N06852) and Nickel-Chromium-Molybdenum-Silicon Alloy (UNS N06219) Seamless Pipe and Tube

These specifications provide guidelines for the chemical composition, mechanical properties, dimensions, and other characteristics of nickel alloy pipes and fittings. It is important to consult the specific specifications relevant to your application and industry requirements when selecting nickel alloy pipes and fittings.

Nickel Alloy Pipes Fittings Application

Nickel alloy pipes and fittings are widely used in various industries due to their excellent resistance to corrosion, high-temperature, and high-pressure environments. Some of the common applications of nickel alloy pipes and fittings include:

1. Chemical processing: Nickel alloys are resistant to various chemicals, acids, and alkalis. They are used in the manufacture of chemical reactors, heat exchangers, and piping systems for the production of chemicals such as sulfuric acid, hydrochloric acid, and phosphoric acid.

2. Oil and gas industry: Nickel alloys are used in the production and transportation of oil and gas due to their high corrosion resistance and ability to withstand high temperatures and pressures. They are used in the manufacture of pipelines, valves, and fittings for offshore and onshore oil and gas drilling and production operations.

3. Aerospace industry: Nickel alloys are used in the manufacture of jet engine components, such as turbine blades, exhaust nozzles, and combustion chambers, due to their high-temperature resistance and strength-to-weight ratio.

4. Power generation: Nickel alloys are used in power generation plants for high-temperature and high-pressure applications. They are used in the manufacture of steam turbines, boiler tubes, and heat exchangers.

5. Medical equipment: Nickel alloys are used in the manufacture of medical equipment, such as implants and prosthetics, due to their biocompatibility and resistance to corrosion.

6. Marine industry: Nickel alloys are used in the manufacture of marine equipment, such as seawater cooling systems, valves, and fittings, due to their resistance to seawater corrosion.