Inconel Fittings

Inconel Fittings Manufacturer, Supplier & Exporter in India

Inconel Fittings Manufacturer, Supplier & Exporter in India

Solitaire Overseas is a globally trusted manufacturer of Inconel fittings, supplying precision-engineered pipe and tube fittings in different grades that include Inconel 600, 601, 625, 718, and 825 to industries across 50+ countries. All products are ISO 9001:2015 certified and manufactured to ASTM B366, ASME B16.9, ASME B16.11, and ANSI B16.28 with EN 10204 3.1/3.2 Mill Test Certificates available on every order.We also have a line of products, such as Inconel elbows, tees, reducers, couplings, caps, unions, and custom-made products, which are designed to withstand high temperatures and high pressure as well as harsh chemical conditions. These fittings are applicable in heat exchangers, oil and gas, chemical processing, aerospace and marine engineering.

Our in-house forging and CNC machining delivers tight dimensional tolerances, smooth surfaces, and consistent mechanical strength across every batch. Every fitting is tested for PMI, hydrostatic pressure, radiography, and hardness before dispatch zero tolerance for non-conformance.
We are able to assist you with Inconel 600 Buttweld Elbows, Inconel 625 Socket Weld Tees, or Inconel 718 High-Pressure Forged Fittings, depending on what you require in your project or application.



What Are Inconel Fittings?

Inconel fittings are pipe and tube connection components machined from nickel-chromium superalloys primarily Inconel 600, 625, 718, and 825. Unlike carbon or stainless steel, Inconel alloys form a stable, self-healing oxide layer at elevated temperatures, which means the fittings hold their mechanical strength and resist oxidation from ambient temperature all the way up to 1093°C. They are specified in oil and gas, aerospace, chemical processing, power generation, and marine engineering wherever a standard steel fitting would corrode, creep, or fail under thermal cycling. Available as elbows, tees, reducers, couplings, caps, unions, and custom configurations in both standard and schedule pipe sizing.
Inconel fittings do not lose their mechanical strength and resistance to oxidation when heated, unlike ordinary steel fittings that do. Due to this, they can be used in high-temperature and pressure areas where corrosive chemicals cause failure of other materials. These fittings of all kinds, including: elbow, tees, reducer, couplings and unions, are designed to either match the standard or custom pipe systems. Inconel fittings are one sure method of ensuring a complex pipe system lasts longer and functions better. They are applied to areas where reliability, performance and safety are highly valued.

Standard Specifications of Inconel Fittings

The table below represents the most popular international standards of Inconel fittings. These standards tell us what type of material, what accuracy of measurement should be used, and how well the fittings would be required to perform in various high performance industrial applications.
Standard Specification Name Applicable Inconel Grades Product Type
ASTM B366 Standard Specification for Wrought Nickel Alloy Fittings Inconel 600, 625, 800, 825 Butt-Weld Fittings
ASTM B564 Specification for Nickel Alloy Forgings Inconel 600, 625, 718, X-750 Forged Fittings, Flanges
ASME SB366 ASME Equivalent of ASTM B366 Inconel 600, 625, 800H, 825 Seamless/Welded Fittings
MSS-SP-43 Standard for Stainless and Nickel Alloy Fittings Inconel Grades (Lightweight Fittings) Butt-Weld Fittings (Non-Pressure)
ANSI B16.9 Factory-Made Wrought Buttwelding Fittings Inconel Alloys Elbows, Tees, Reducers, Caps
ANSI B16.11 Forged Steel Fittings, Socket-Weld and Threaded Inconel 600, 625 Socket Weld & Threaded Fittings
DIN 17744 German Standard for Nickel Alloys 2.4816 (Inconel 600), 2.4856 (625) All Types of Fittings

Equivalent Grades of Inconel Fittings

The following table shows the equivalent grade designations of popular Inconel alloys as per different international standards and specifications.
Grade UNS No. Werkstoff Nr. (WNR) EN Standard Trade Name / Brand
Inconel 600 N06600 2.4816 NiCr15Fe Alloy 600, Chronin 600
Inconel 601 N06601 2.4851 NiCr23Fe Alloy 601
Inconel 625 N06625 2.4856 NiCr22Mo9Nb Alloy 625, Chronin 625
Inconel 718 N07718 2.4668 NiCr19Fe19Nb5Mo3 Alloy 718
Inconel 825 N08825 2.4858 NiCr21Mo Alloy 825, Chronin 825
Inconel X-750 N07750 2.4669 NiCr15Fe7TiAl Alloy X-750

Types of Inconel Pipe & Tube Fittings

There are a lot of different types, grades, and manufacturing standards for inconel pipe and Inconel tube fittings so that they can meet the needs of high performance in harsh and hot environments. These fittings are made to meet international standards like ASTM B366, ASME B16.11, and ANSI B16.9. They are made from grades like Inconel 600, 625, 718, and 825. The different kinds of Inconel fittings are broken down below into the following groups:

Wrought Inconel Pipe Fittings (ASTM B366)

Elbows

Inconel 600 & 625 Elbows (90° & 45°)

These elbows, which are made from UNS N06600 and N06625 (Werkstoff 2.4816 & 2.4856), change the direction of flow in pipe systems. Sizes range from ½" to 48" and pressure classes go up to Class 2500. They come in both long and short ranges. Often found in heat exchanger and power generation systems.

Equal & Reducing

Inconel 600 & 625 Tees (Equal & Reducing)

These tees let pipelines split fluid or mix it with other fluid. Made to meet ASTM B366, it can handle tough marine and chemical use. Class 150–2500; size range: ½"–48"

Concentric & Eccentric)

Inconel 600 & 625 Reducers (Concentric & Eccentric)

Made to connect pipes of different sizes while keeping the flow intact. Used in offshore and petrochemical pipe systems.

Caps & Plugs

Inconel 600 & 625 Caps & Plugs

End caps for pipes that don't rust or corrode in harsh conditions. Good for the chemical and processing industries.

Lateral Tees & Laterals

Inconel 600 & 625 Lateral Tees & Laterals

Y-shaped connectors for connecting branches in a certain direction. It is used in gas distribution systems and instrumentation.

High-Temp Elbows & Tees

Inconel 718 & 825 High-Temp Elbows & Tees

It is best to use UNS N07718 and N08825 grades for tasks that involve high temperatures and pressures. Often found in spacecraft, reactor vessels, and units that process acids.

Forged Inconel Pipe Fittings (ASME B16.11)

Elbows, Tees, Couplings, Unions

Socket Weld Inconel Fittings (Elbows, Tees, Couplings, Unions)

High-strength fittings forged from Inconel 600/625/718. Pressure ratings: 3000, 6000, 9000 psi. Sizes: ¼″ to 4″. Used in compact, leak-free systems.

NPT Tee, NPT Elbow, NPT Coupling

Threaded Inconel Fittings (NPT Tee, NPT Elbow, NPT Coupling)

Threaded connections for high-corrosion applications. Suitable for instrumentation, offshore rigs, and marine systems.

Elbows

Socket Weld 90° & 45° Inconel Elbows

Precision-machined elbows designed to withstand chloride-induced stress. Ideal for chemical and fertilizer plants.

Tees & Crosses

Inconel Forged Tees & Crosses

Forged under high pressure for durability. Used in pipelines where branch connections are required.

Couplings & Unions

Inconel Forged Couplings & Unions

Available in full, half, and reducing types. Offers easy pipe disconnection and reconnection in process piping.

Buttweld Inconel Fittings (ANSI B16.9 & B16.28)

Elbows

Buttweld 90° & 45° Elbows (Long Radius & Short Radius)

Smooth-flow elbows for high-velocity systems. Available in large diameters up to 48″. Widely used in oil refineries and power plants.

Equal & Reducing

Buttweld Tees (Equal, Reducing)

Offers stable flow splitting or mixing. ASTM B366 compliance ensures high durability.

Concentric & Eccentric)

Buttweld Reducers (Concentric, Eccentric)

Facilitate smooth pipe diameter transitions. Sizes range from 1″ to 48″, used in chemical and gas industries.

Buttweld Caps

Buttweld Caps

Pipe end closures for corrosion-intensive environments. Made from Inconel 600/625/825.

Lap Joint Stub Ends

Buttweld Stub Ends (Lap Joint Stub Ends)

Used with lap joint flanges to minimize stress on weld joints. Common in reactor piping and pressure vessels.

Inconel Tube Fittings & Adapters

Tees & Crosses

Inconel Compression Tube Fittings (Elbows, Tees, Crosses, Couplings)

Precision compression-type fittings for leak-tight performance in high-pressure tubing systems. Sizes: ¼″–1″.

Flare & Ferrule Tube Fittings

Inconel Flare & Ferrule Tube Fittings

Ideal for instrumentation lines and hydraulic control systems. Manufactured for easy assembly and vibration resistance.

Male & Female Adapters

Inconel Male & Female Adapters

Threaded tube adapters designed for easy connections between pipes and equipment. NPT and BSPT threads available.

Specialty & Custom Inconel Fittings

High-Temp Fittings

Inconel 718 High-Pressure, High-Temp Fittings

UNS N07718 fittings for turbine, jet engine, and aerospace fuel systems. Extreme strength and creep resistance.

Tees & Crosses

Inconel 825 Fittings for Sulphuric/Phosphoric Acid Service (NACE MR0175)

Designed to resist corrosion in strong acid environments. Used in chemical scrubbers and waste processing units.

Buttweld Caps

Inconel Hastelloy C-276 Clad Fittings

Dual metal fittings with Hastelloy C-276 cladding for enhanced corrosion resistance. Suitable for aggressive acid environments.

Fabricated Inconel Fittings

Machined Forged & Fabricated Inconel Fittings

Custom-built fittings to meet unique engineering requirements. Precision machined using CNC for critical oil & gas applications.


Chemical Composition of Inconel Pipe & Tube Fittings

Inconel pipe and tube fittings are made from high-performance nickel-chromium alloys that are known for being very resistant to oxidation, corrosion, and high temperatures. The chemicals that make up Inconel depend on the grade. Each grade has its own unique properties that make it ideal for demanding uses in areas like power generation, chemical processing, the marine industry, and chemical processing.
Below is the typical chemical composition of commonly used Inconel grades in pipe and tube fittings:
Grade Ni (%) Cr (%) Fe (%) Mo (%) Nb + Ta (%) Ti (%) Al (%) Cu (%) C (%) Mn (%) Si (%) Others
Inconel 600 72.0 min 14.0–17.0 6.0–10.0 0.5 max 0.15 max 1.0 max 0.5 max S ≤ 0.015
Inconel 625 58.0 min 20.0–23.0 ≤5.0 8.0–10.0 3.15–4.15 0.10 max 0.50 max 0.50 max P ≤ 0.015, S ≤ 0.015
Inconel 718 50.0–55.0 17.0–21.0 Balance 2.80–3.30 4.75–5.50 0.65–1.15 0.20–0.80 0.08 max 0.35 max 0.35 max S ≤ 0.015
Inconel 825 38.0–46.0 19.5–23.5 ≥22.0 2.5–3.5 0.6–1.2 1.5–3.0 0.05 max 1.0 max 0.5 max S ≤ 0.03

Mechanical & Temperature Ratings

All pipe and tube fittings made from Inconel must meet the mechanical property standards set by ASTM B366 and ASME B16.11. By meeting these standards, fittings will always work perfectly in high-pressure and high-temperature situations. The mechanical properties of each grade of Inconel, such as the tensile strength of Inconel 625 fittings, are very important for uses that need to be resistant to heat stress, oxidation, and corrosion.
Here are the minimum mechanical properties and temperature ranges for commonly used grades of Inconel. These rules help engineers and procurement teams pick the right materials for mission-critical tasks in oil and gas, power generation, chemical processing, and aerospace, among other fields.
Inconel Grade Tensile Strength(MPa / ksi) Yield Strength(0.2% Offset, MPa / ksi) Elongation(% min) Hardness(Rockwell B/C) Max Continuous Service Temp Creep Rupture Strength(MPa @ 1000h/650°C)
Inconel 600 655 MPa / 95 ksi 240 MPa / 35 ksi 30% RB 85 max 1093°C / 2000°F ~85 MPa
Inconel 625 827 MPa / 120 ksi 414 MPa / 60 ksi 30% RC 30 max 982°C / 1800°F ~100 MPa
Inconel 718 1241 MPa / 180 ksi 1034 MPa / 150 ksi 12% RC 35 max 704°C / 1300°F ~160 MPa
Inconel 825 690 MPa / 100 ksi 310 MPa / 45 ksi 30% RB 90 max 540°C / 1000°F ~80 MPa
These mechanical and temperature ratings make Inconel fittings perfect for high-performance systems that have to work in harsh conditions. They offer great durability, lifetime, and dependability.

Dimensions, Pressure Classes & Tolerances

International standards for dimensions and tolerances are strictly followed when making Inconel pipe and tube fittings to make sure they work well and are safe in a wide range of demanding industrial settings. These requirements change based on the type of manufacturing standard used: ASME B16.11 for forged fittings, ANSI B16.9 for buttweld fittings, and ASTM B366 for wrought fittings.
Standard Fitting Type Size Range Pressure Class Tolerances Key Notes
ANSI B16.9 Buttweld ½″ to 48″ Class 150 – Class 2500 As per ANSI B16.9; typically ±1% OD, ±10% WT Includes LR & SR elbows; commonly used in process piping
ASME B16.11 Forged (SW & Threaded) ¼″ to 4″ SW: 2000, 3000Threaded: 3000, 6000 Tight machining tolerances; per ASME B16.11 Used in high-pressure, compact piping systems
ASTM B366 Wrought ½″ to 24″ Up to Class 2500 OD: ±10% (cold-drawn), ±12.5% (hot-rolled) Applies to seamless/welded Inconel fittings for corrosive service
DIN / EN 10253 Buttweld (Metric) DN 15 to DN 500 PN 2.5 – PN 40 As per EN 10253-2 / EN 10220 Used primarily in European projects and systems
When used in harsh conditions, leak-free, high-pressure connections depend on the precise size controls and standard deviations found in inconel fittings. If you need to check the dimensions of an Inconel buttweld according to ANSI B16.9 or the tolerances for an Inconel fitting according to ASME B16.11 for a manufactured design, each fitting is made to be accurate, long-lasting, and compliant around the world.

What Is the Price of Inconel Fittings in India?

The price of Inconel fittings in India varies based on the grade, size, type, and order quantity. As of 2025, general pricing trends are:
Inconel Grade Fitting Type Size (NPS) Schedule Approx. Price Range (INR/Unit) Notes
Inconel 600 90° Elbow 1” SCH 40 ₹1,200 – ₹1,800 Standard butt-weld elbow, seamless
Inconel 625 Tee 2” SCH 80 ₹3,500 – ₹5,000 For high-pressure, corrosive applications
Inconel 718 Concentric Reducer 3” to 2” SCH 40 ₹6,000 – ₹8,000 Age-hardened alloy, high strength
Inconel 625 Stub End (Type A) 4” SCH 40S ₹4,000 – ₹6,500 Used with lap joint flanges
Incoloy 825 Pipe Cap 2” SCH 80S ₹1,800 – ₹2,800 Suitable for acidic environments
Inconel 600 Forged Socket Weld Tee 1½” Class 3000 ₹2,000 – ₹3,000 ASME B16.11 compliant
Incoloy 800H 45° Elbow 2” SCH 40 ₹2,500 – ₹3,800 For high-temp oxidizing settings
Inconel 625 Weldolet® (MSS SP-97) 2” branch SCH 80 ₹3,800 – ₹5,500 Branch outlet fitting
Prices are influenced by nickel prices, sourcing origin, and market availability. For the most accurate and competitive pricing, we recommend requesting a custom quotation based on your technical requirements and project scope.

Applications & Industries Served

Inconel pipe and tube fittings are made to work reliably in the harshest industrial settings around the world. They can be used in many important areas because they are very resistant to heat, pressure, corrosion, and aggressive media.
  • Oil & Gas: Injection lines for sour gas and pipelines under the sea use Inconel 625 and 825 fittings a lot. Because they are very resistant to stress-corrosion cracking, chlorine, and hydrogen sulfide (H2S), offshore and upstream systems will last for a long time.
  • Chemical & Petrochemical: Inconel 600 and 601 are often used in acid plants and chlor-alkali reactors where only small amounts of acid are present. Inconel 625 is used to handle caustic or high-chloride media in reactors, scrubbers, and heat exchangers.
  • Power Generation: Inconel 718 elbows and tees are used a lot in high-pressure steam pipe systems that can handle temperatures up to 700°C. Because they are so strong against creep and rupture, they can be used in turbine bypass systems and superheater lines.
  • Aerospace & Defense: For high-performance fuel delivery and hydraulic systems, Inconel 718 fittings provide unmatched strength and thermal stability across a wide temperature spectrum, essential for mission-critical aerospace functions.
  • Marine & Shipbuilding: Inconel 625 fittings are ideal for deck piping, seawater cooling, and exhaust systems. Their excellent resistance to saltwater pitting and crevice corrosion makes them a preferred choice for naval and offshore installations.
  • Pharmaceutical & Food Processing: Inconel 600 buttweld fittings are used in clean steam lines and sterile processing systems. They meet FDA and 3A sanitary standards, offering hygienic performance in CIP/SIP environments.

Export Destinations & Global Reach

People from all over the world trust our Inconel pipe and tube fittings, which are sent to more than 50 countries on six continents. Our products are used in many industrial sectors around the world because they are known for being accurate, high-quality, and in line with international standards.
We maintain strong export capabilities and logistical partnerships to ensure timely delivery to the following key regions:
  • Middle East: UAE, Saudi Arabia, Qatar, Oman, Kuwait, Iran, Bahrain
    Serving critical oil & gas and petrochemical infrastructure projects.
  • Africa: South Africa, Egypt, Nigeria, Algeria, Morocco
    Supplying corrosion-resistant fittings for mining, energy, and refinery operations.
  • Europe: Germany, UK, France, Italy, Netherlands, Russia
    Meeting stringent EU standards for high-performance piping systems.
  • North America: USA, Canada, Mexico
    Providing ASME-compliant Inconel fittings for aerospace, marine, and energy sectors.
  • Asia: India, Singapore, Malaysia, Indonesia, Thailand, South Korea, Japan
    Supporting fast-growing industrial hubs with reliable and high-alloy pipe fittings.
  • South America: Brazil, Argentina, Chile, Colombia, Peru
    Delivering durable solutions for chemical processing and offshore exploration.
We continue to expand our global footprint by offering competitive pricing, custom packaging, and export documentation support for hassle-free international trade.

Why Choose Solitaire Overseas for Inconel Fittings?

Solitaire Overseas stands as a trusted global supplier of premium Inconel pipe and tube fittings, backed by unmatched manufacturing capabilities and a customer-centric approach. Here’s why industries worldwide rely on us:
  • Full In-House Forging & Fabrication: We maintain complete control over the manufacturing process—from melting and forging to machining and finishing—ensuring superior quality with zero reliance on third-party vendors.
  • ISO 9001 & NACE MR0175 Compliance: All Inconel fittings are produced in line with global standards and delivered with EN 10204 3.1/3.2 Mill Test Certificates. Third-party inspections from SGS, TUV, and BV are available upon request.
  • Extensive Stock & Quick Turnaround: We stock Inconel 600, 625, 718, and 825 fittings in a wide range of sizes (¼″ to 48″), ready for immediate dispatch. Custom forged or fabricated fittings can be produced in just 20–30 days.
  • Certified Welders & QA/QC Testing: Our in-house QA team ensures every fitting passes radiography, PMI, hydro testing, and hardness verification. All welding is performed by ASME-certified professionals.
  • Global Logistics Expertise: We offer smooth DAP/DDP shipping to over 45 countries with full freight forwarding, documentation, and customs clearance support.
  • 24/7 Technical Support: Our team of metallurgists and application engineers is available round-the-clock for alloy selection, installation assistance, and technical troubleshooting.
  • Competitive Pricing & Volume Discounts: With our optimized production and bulk stockholding, we offer tiered pricing models to support both small and large volume requirements.

Inconel Fittings Pressure Rating NPT/ISO Sizes (PSI & Bar)

NPT/ISO Pipe Size (in) Male - psig (bar) Female - psig (bar)
1/1615,000 (1,033)12,900 (888)
1/815,000 (1,033)12,500 (861)
1/415,000 (1,033)12,700 (875)
3/815,000 (1,033)10,200 (702)
1/214,800 (1,019)9,400 (647)
3/410,000 (689)8,900 (613)
110,000 (689)8,500 (585)
1 1/410,000 (689)9,600 (661)
1 1/29,600 (661)8,900 (613)
27,500 (516)7,500 (516)

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Frequently Asked Questions - Inconel Fittings


Inconel is used in high-temperature, high-stress, and highly corrosive environments. It's ideal for jet engines, gas turbines, chemical plants, marine applications, and nuclear reactors due to its exceptional resistance to oxidation and corrosion.

Yes, in extreme conditions. Inconel outperforms stainless steel in high-temperature and highly corrosive environments. While stainless steel is cost-effective and sufficient for many uses, Inconel offers superior strength and corrosion resistance in more demanding applications.

Inconel and titanium serve different purposes. Inconel is better for extreme heat and corrosive environments, like exhaust and aerospace systems. Titanium excels in strength-to-weight ratio and biocompatibility, making it ideal for medical and aerospace weight-sensitive parts.

Inconel piping refers to tubes or pipes made from Inconel alloys like 600, 625, or 825, used for transporting fluids or gases under extreme pressure, heat, or corrosive conditions. They are common in petrochemical, aerospace, marine, and power generation industries.

Inconel 600 (UNS N06600) is a general-purpose nickel-chromium alloy suitable for temperatures up to 1093°C with good oxidation resistance. Inconel 625 (UNS N06625) adds molybdenum and niobium to the alloy, giving it significantly higher tensile strength (827 MPa vs 655 MPa) and superior resistance to pitting and crevice corrosion in chloride environments. Inconel 625 is the preferred grade for offshore, subsea, and chemical processing applications. Inconel 600 is more commonly used in heat treatment, furnace components, and nuclear applications.

Inconel fittings are made from nickel-chromium superalloys. The most common grades are Inconel 600, 625, 718, and 825 all based on a high-nickel (58–72%) and chromium (14–23%) composition.

Yes, in extreme conditions. Inconel outperforms stainless steel at high temperatures (above 600°C), in corrosive/acidic environments, and under high pressure. For standard industrial use, stainless steel is more cost-effective.

Absolutely. That's their primary advantage. Inconel fittings retain strength and resist oxidation up to 982–1093°C depending on the grade, making them ideal for aerospace, power generation, and chemical processing.

No, Inconel does not rust in water, including saltwater or acidic environments. Its high nickel and chromium content forms a protective oxide layer that resists oxidation, pitting, and corrosion even in aggressive marine or chemical exposures.

Inconel valves offer outstanding corrosion resistance, high-temperature strength, and durability under extreme pressure. They're ideal for handling aggressive chemicals, steam, and superheated gases, making them reliable for aerospace, power, and offshore industries.