Inconel tube plugs are critical components for industries that demand exceptional durability and resistance to high temperatures, pressures and corrosive environments. Manufactured from high-performance Inconel alloys, these tube plugs offer reliable sealing for equipment like heat exchangers, condensers, reactors, turbines and more. With a range of alloys such as Inconel 600, Inconel 800, Inconel 825, Inconel 718 and Inconel 625 they provide tailor-made solutions for demanding industrial processes.
These plugs are precision-engineered to ensure tight, leak-proof seals even under extreme conditions making them an indispensable choice for industries such as aerospace, power generation, petrochemical and nuclear sectors. Inconel alloys are renowned for their excellent mechanical properties and resistance to oxidation and corrosion which makes them ideal for sealing in systems operating in high-stress environments.
Unifit Metalloys, a trusted manufacturer and supplier with 11 years of expertise ensures every Inconel tube plug is crafted to the highest standards of quality, durability and precision. Our focus on engineering excellence and adherence to global standards guarantees optimal performance for critical applications.
Request QuoteWhat Are Inconel Tube Plugs?
Inconel tube plugs are specialized sealing devices used to block the open ends of metal tubes preventing leakage of gases or fluids. These plugs are made from Inconel, a series of nickel-chromium-based superalloys that are specifically engineered to withstand extreme operating conditions. The inherent properties of Inconel alloys such as their excellent high-temperature resistance, corrosion resistance and mechanical strength, make them the go-to choice for applications in environments where most other metals would fail.
Inconel tube plugs are used across various sectors to ensure reliable and long-lasting seals in tubes that operate under elevated pressures, high temperatures or corrosive atmospheres. Whether in a heat exchanger, a nuclear reactor or a turbine, these plugs provide optimal sealing performance minimizing the risk of leakage and improving system efficiency.
Inconel Tube Plug Specifications
Inconel tube plugs are designed to provide reliable, leak-proof seals in demanding industrial systems exposed to high temperatures, pressures and corrosive environments. Below is an overview of key specifications for Inconel tube plugs made from various alloys including Inconel 600, Inconel 800, Inconel 825, Inconel 718 and Inconel 625:
| Inconel Grade | Diameter (OD) | Length | Maximum Pressure | Temperature Resistance |
|---|---|---|---|---|
| Inconel 600 | ¼″ to 4″ (6.35mm to 101.6mm) | Up to 6″ (152.4mm) | 150 PSI | Up to 2,000°F (1,093°C) |
| Inconel 800 | ¼″ to 4″ (6.35mm to 101.6mm) | Up to 6″ (152.4mm) | 150 PSI | Up to 1,800°F (982°C) |
| Inconel 825 | ¼″ to 4″ (6.35mm to 101.6mm) | Up to 6″ (152.4mm) | 150 PSI | Up to 1,800°F (982°C) |
| Inconel 718 | ¼″ to 4″ (6.35mm to 101.6mm) | Up to 6″ (152.4mm) | 150 PSI | Up to 1,300°F (704°C) |
| Inconel 625 | ¼″ to 4″ (6.35mm to 101.6mm) | Up to 6″ (152.4mm) | 150 PSI | Up to 2,000°F (1,093°C) |
Grades for Inconel Tube Plugs
Inconel tube plugs are precision-engineered components made from high-performance nickel-chromium alloys designed to provide superior sealing solutions in demanding industrial applications. The choice of alloy is crucial to ensure the plug can withstand extreme temperatures, high pressure and corrosive environments. Below are the main grades of Inconel used for tube plugs each offering distinct advantages for specific applications:
Inconel 600 Tube Plugs
Inconel 600 tube plugs are made from a high-chromium, high-nickel alloy known for its outstanding resistance to oxidation, carburization and high-temperature corrosion. These plugs perform well in environments where temperatures can reach up to 2,000°F (1,093°C). Inconel 600 is commonly used in applications requiring excellent weldability, forming and resistance to heat. Ideal for heat exchangers, reactors and furnaces, this grade is particularly suited for industries such as aerospace, chemical processing and power generation.
Inconel 625 Tube Plugs
Inconel 625 tube plugs are made from an alloy that provides exceptional resistance to a wide range of corrosive environments including seawater and industrial acids. Withstanding temperatures up to 2,000°F (1,093°C), Inconel 625 is perfect for marine environments, chemical processing and heat exchangers. This alloy is known for its superior fatigue and thermal-fatigue strength making it ideal for use in harsh environments where mechanical stress and corrosion are present.
Inconel 800 Tube Plugs
Inconel 800 tube plugs are made from a nickel-chromium alloy that provides excellent resistance to oxidation and carburization. Withstanding temperatures up to 1,800°F (982°C), Inconel 800 is ideal for applications where thermal stability and strength at high temperatures are required. Its superior resistance to stress corrosion cracking makes it an excellent choice for boilers, industrial furnaces and heat exchangers in the power generation and petrochemical sectors.
Inconel 825 Tube Plugs
Inconel 825 tube plugs are highly resistant to corrosion in a wide range of aggressive environments including acids and seawater. Known for its excellent resistance to oxidation and acidic environments, Inconel 825 is commonly used in applications exposed to high levels of sulfuric acid, phosphoric acid and other corrosive substances. It can withstand temperatures up to 1,800°F (982°C), making it ideal for chemical processing, marine and high-stress industries.
Inconel 718 Tube Plugs
Inconel 718 tube plugs are known for their exceptional high-temperature strength and resistance to both oxidation and corrosion. This nickel-chromium alloy can withstand temperatures up to 1,300°F (704°C) and is ideal for aerospace, nuclear and power generation applications. Inconel 718 is used in high-stress environments like turbine engines, reactors and pressure vessels where it offers long-lasting performance in demanding conditions.
Send Your Enquiry
Types of Inconel Tube Plugs
Inconel Tube Plugs are engineered to perform in the most demanding industrial environments, where high temperatures, pressure fluctuations and corrosive media are common. Available in Inconel 600, 800, 825, 718 and 625, these plugs are precision-machined to deliver a tight leak-proof seal and long-term durability. The following table outlines the available types for each grade helping engineers select the most suitable solution for their specific application:
| Grade | Tube Plug Types | |
|---|---|---|
| Inconel 600 | Inconel 600 Expandable Tube Plug, Inconel 600 Boiler Tapered Tube Plug, Inconel 600 Threaded Tapered Tube Plug, Inconel 600 One-Piece Tube Plug, Inconel 600 Tapered Metal Tube Plug, Inconel 600 Heat Exchanger Tube Plug, Inconel 600 Pin Tube Plug, Inconel 600 Collar Tube Plug, Inconel 600 Condenser Tube Plugging |
|
| Inconel 800 | Inconel 800 Expandable Tube Plug, Inconel 800 Boiler Tapered Tube Plug, Inconel 800 Threaded Tapered Tube Plug, Inconel 800 One-Piece Tube Plug, Inconel 800 Tapered Metal Tube Plug, Inconel 800 Heat Exchanger Tube Plug, Inconel 800 Pin Tube Plug, Inconel 800 Collar Tube Plug, Inconel 800 Condenser Tube Plugging | |
| Inconel 825 | Inconel 825 Expandable Tube Plug, Inconel 825 Boiler Tapered Tube Plug, Inconel 825 Threaded Tapered Tube Plug, Inconel 825 One-Piece Tube Plug, Inconel 825 Tapered Metal Tube Plug, Inconel 825 Heat Exchanger Tube Plug, Inconel 825 Pin Tube Plug, Inconel 825 Collar Tube Plug, Inconel 825 Condenser Tube Plugging | |
| Inconel 718 | Inconel 718 Expandable Tube Plug, Inconel 718 Boiler Tapered Tube Plug, Inconel 718 Threaded Tapered Tube Plug, Inconel 718 One-Piece Tube Plug, Inconel 718 Tapered Metal Tube Plug, Inconel 718 Heat Exchanger Tube Plug, Inconel 718 Pin Tube Plug, Inconel 718 Collar Tube Plug, Inconel 718 Condenser Tube Plugging | |
| Inconel 625 | Inconel 625 Expandable Tube Plug, Inconel 625 Boiler Tapered Tube Plug, Inconel 625 Threaded Tapered Tube Plug, Inconel 625 One-Piece Tube Plug, Inconel 625 Tapered Metal Tube Plug, Inconel 625 Heat Exchanger Tube Plug, Inconel 625 Pin Tube Plug, Inconel 625 Collar Tube Plug, Inconel 625 Condenser Tube Plugging |
Inconel Tube Plugs Equivalent Materials
Each grade of Inconel tube plug has equivalent materials that can be considered based on availability, regional standards or specific application requirements. Below, you will find the commonly used equivalents for each grade:
|
Inconel Grade |
Equivalent Materials |
|---|---|
|
Inconel 600 |
UNS N06600, EN 2.4816, DIN 2.4816 |
|
Inconel 800 |
UNS N08800, EN 1.4958, DIN 1.4958 |
|
Inconel 825 |
UNS N08825, EN 2.4858, DIN 2.4858 |
|
Inconel 718 |
UNS N07718, EN 2.4668, DIN 2.4668 |
|
Inconel 625 |
UNS N06625, EN 2.4856, DIN 2.4856 |
Chemical Composition of Inconel Tapered Tube Plugs
The chemical composition of Inconel tube plugs is crucial in determining their strength, corrosion resistance and high-temperature performance. Each grade is engineered to meet stringent industrial standards ensuring reliable sealing under extreme conditions. The table below outlines the typical composition ranges for commonly used Inconel grades:
|
Inconel Grade |
Nickel (Ni) |
Chromium (Cr) |
Iron (Fe) |
Molybdenum (Mo) |
Columbium/Niobium (Nb) |
Titanium (Ti) |
Other Elements |
|---|---|---|---|---|---|---|---|
|
Inconel 600 |
72 min |
14–17 |
Bal |
– |
– |
– |
C ≤ 0.15%, Mn ≤ 1.0%, Si ≤ 0.5% |
|
Inconel 800 |
30–35 |
19–23 |
Bal |
– |
– |
– |
C ≤ 0.06%, Mn ≤ 1.0%, Si ≤ 1.0% |
|
Inconel 825 |
38–46 |
19.5–23.5 |
Bal |
2.5–3.5 |
– |
– |
C ≤ 0.05%, Mn ≤ 1.0%, Si ≤ 0.5% |
|
Inconel 718 |
50–55 |
17–21 |
Bal |
2.8–3.3 |
4.75–5.5 |
0.65–1.15 |
C ≤ 0.08%, Mn ≤ 0.35%, Si ≤ 0.35% |
|
Inconel 625 |
58 min |
20–23 |
Bal |
8–10 |
3.15–4.15 |
– |
C ≤ 0.10%, Mn ≤ 0.5%, Si ≤ 0.5% |
Mechanical Properties of Inconel Tube Plugs
The mechanical properties of Inconel tube plugs define their ability to withstand high pressure, extreme temperatures and mechanical stress in demanding industrial applications. Each grade is engineered to meet strict international standards, ensuring consistent performance, durability and safety in critical systems such as heat exchangers, reactors, turbines and condensers.
|
Inconel Grade |
Tensile Strength (ksi) |
Yield Strength (ksi) |
Elongation (%) |
Hardness (HB) |
|---|---|---|---|---|
|
Inconel 600 |
85–100 |
35–50 |
30–40 |
150–220 |
|
Inconel 800 |
75–95 |
30–45 |
30–40 |
150–220 |
|
Inconel 825 |
80–100 |
35–50 |
30–40 |
150–230 |
|
Inconel 718 |
150–180 |
120–150 |
12–25 |
300–400 |
|
Inconel 625 |
120–140 |
70–100 |
30–40 |
200–250 |
Send Your Enquiry
Dimensions for Inconel Tube Plugs
Inconel tube plugs are manufactured in a range of standard dimensions to ensure a precise, leak-proof fit in tubes across various industrial systems. The plugs are engineered for easy installation, reliable sealing and long-term durability, even in high-temperature, high-pressure and corrosive environments. Custom sizes are also available to meet specific project requirements:
Inconel Tube Plug Sizing Chart
| Tube OD | Gauge | Small End “A” | Large End “B” | Length “L” |
|---|---|---|---|---|
| 1/4″ | 18–24 | 0.141″ | 0.235″ | 1-1/4″ |
| 3/8″ | 12–24 | 0.213″ | 0.371″ | 1-3/4″ |
| 1/2″ | 13–24 | 0.337″ | 0.495″ | |
| 5/8″ | 12–24 | 0.449″ | 0.625″ | |
| 3/4″ | 10–24 | 0.564″ | 0.750″ | |
| 7/8″ | 10–24 | 0.706″ | 0.875″ | |
| 1″ | 8–24 | 0.776″ – 0.892″ | 0.934″ – 1.050″ | 2″ |
| 1-1/8″ | 13–24 | 0.949″ | 1.125″ | |
| 1-1/4″ | 10–24 | 1.010″ – 1.147″ | 1.186″ – 1.323″ | |
| 1-1/2″ | 10–24 | 1.200″ – 1.305″ | 1.495″ – 1.600″ | 3″ |
| 1-3/4″ | 6–22 | 1.575″ | 1.870″ | |
| 2″ | 6–22 | 1.700″ | 1.995″ | |
| 2-1/4″ | 6–13 | 1.805″ | 2.100″ | |
| 2-1/2″ | 5–18 | 2.000″ | 2.375″ | |
| 2-3/4″ | 4–10 | 2.232″ | 2.500″ | |
| 3″ | 5–23 | 2.524″ – 2.625″ | 2.834″ – 3.000″ | 4″ |
| 3-1/4″ | 7–23 | 2.875″ – 3.010″ | 3.125″ – 3.250″ | |
| 3-1/2″ | 7–23 | 3.125″ – 3.260″ | 3.375″ – 3.500″ | |
| 3-3/4″ | 5–23 | 3.274″ – 3.510″ | 3.567″ – 3.750″ | |
| 4″ | 5–23 | 3.524″ – 3.782″ | 3.817″ – 4.000″ |
Inconel Tube Plugs Price in India
The price of an Inconel tube plug depends on factors such as grade, size, type and any custom specifications reflecting the high-performance standards of these alloys.
To ensure you get the best solution for your specific needs, we recommend requesting a personalized quote. This approach guarantees you receive a tube plug that not only meets technical requirements but also provides long-lasting reliability and optimal performance.
|
Inconel Grade |
Approx. Price Range (INR / Piece) |
|---|---|
|
Inconel 600 |
|
|
Inconel 800 |
|
|
Inconel 825 |
|
|
Inconel 718 |
|
|
Inconel 625 |
Inconel Tube Plugs, Inconel Tapered Tube Plugs Exporter & Supplier, Inconel 600 Tube Plugs, Inconel 625 Tube Plugs Stockist & Supplier, Inconel 718 Heat Exchanger Tube Plugs, Inconel 800 Boiler Tube Plugs, Heat Exchanger Inconel Tapered Tube Plugs, Inconel Heat Exchanger Plugs Stockist and Manufacturer.
Inconel 600 Tube Plugs Supplier, Inconel 625 Tube Plugs, Inconel 718 Tube Plugs Exporter, Inconel 800 Tapered Tube Plugs Supplier, Inconel 825 Tube Plugs, Inconel Tapered Tube Plugs Exporter & Supplier, Inconel Plugs Manufacturer.
Request Quote