Inconel 718 Pipe Fittings Manufacturer & Supplier in India, USA, Turkey & Nigeria
Mcneil Instruments is an Inconel 718 Pipe Fittings Manufacturer, Supplier and Exporter in India, supplying high-performance Inconel 718 pipe fittings to industrial customers and projects across the USA, Turkey, Nigeria and other international markets.
Based in Mumbai, Maharashtra, India, Mcneil Instruments supplies Inconel Alloy 718 Pipe Fittings for demanding applications where high mechanical strength, corrosion resistance, fatigue resistance and reliable performance at elevated and cryogenic temperatures are required.
Inconel 718, also known as Alloy 718, Nickel Alloy 718 and UNS N07718, is a precipitation-hardenable nickel-chromium alloy containing significant amounts of iron, niobium and molybdenum. Its age-hardening characteristics provide high tensile, yield, fatigue and creep-rupture strength while retaining useful corrosion resistance and weldability.
Mcneil Instruments supplies Inconel 718 Pipe Fittings in different sizes, schedules and configurations for customers in India, USA, Turkey and Nigeria.
The product range can include elbows, tees, reducers, caps, crosses, stub ends, bends and other fittings, according to project requirements.
Inconel 718 Pipe Fittings
Inconel 718 Pipe Fittings are used to connect piping components, change flow direction, create branch connections, reduce pipe diameter and terminate piping systems in demanding industrial environments.
The alloy is particularly valued for its combination of high strength, corrosion resistance, fatigue resistance and creep-rupture properties. It can be used across a broad temperature range, from cryogenic applications to elevated-temperature service around 650–700°C depending on product form, heat treatment and service conditions.
Unlike conventional stainless steel fittings, Inconel 718 is selected when the application demands the performance of a nickel-based superalloy rather than general-purpose stainless steel.
Mcneil Instruments supplies Inconel 718 fittings from India to customers and industrial projects in the USA, Turkey and Nigeria.
UNS N07718 Inconel 718 Pipe Fittings
UNS N07718 is the internationally recognized UNS designation associated with Inconel Alloy 718.
Other commonly used designations include:
- Inconel 718
- Alloy 718
- Nickel Alloy 718
- UNS N07718
- Werkstoff 2.4668
- NiCr19NbMo
The alloy’s chemistry includes approximately 50–55% nickel, 17–21% chromium, 2.8–3.3% molybdenum and 4.75–5.50% niobium plus tantalum, with iron forming the balance.
The combination of nickel, chromium, molybdenum and niobium contributes to the alloy’s strength, corrosion resistance and precipitation-hardening response.
ASTM B366 Inconel 718 Pipe Fittings
ASTM B366 is commonly referenced for wrought nickel and nickel-alloy pipe fittings. Inconel 718 fittings may be specified to applicable ASTM/ASME requirements depending on the fitting type, manufacturing route and project specification.
For Inconel 718 piping components, other relevant material specifications can include ASTM B637, AMS 5662/5663 and AMS 5589/5590 for applicable product forms.
Dimensional requirements can include:
- ASME B16.9
- ASME B16.11
- ASME B16.28
- MSS SP-43
- ASME B16.25 where applicable
The applicable material and dimensional standards should always be confirmed against the customer’s purchase specification.
Inconel 718 Pipe Fittings Supplier in USA
Mcneil Instruments supplies Inconel 718 Pipe Fittings for industrial requirements in the USA from its India-based manufacturing and export operations.
Inconel 718 is particularly relevant to US applications involving aerospace, oil and gas, power generation, chemical processing, cryogenic equipment, marine systems and high-temperature machinery.
Customers in the USA can specify:
- Inconel 718 / UNS N07718
- Fitting type
- Nominal pipe size
- Schedule
- Quantity
- ASTM B366 requirements
- ASME dimensional standards
- Heat-treatment condition
- Testing requirements
- Inspection documentation
For critical aerospace, oil and gas and high-temperature applications, the required material condition and certification should be specified at the enquiry stage.
Inconel 718 Pipe Fittings Supplier in Turkey
Mcneil Instruments supplies Inconel 718 Pipe Fittings for industrial customers and projects in Turkey from its India-based manufacturing and export operations.
Inconel 718 can be considered for demanding Turkish industrial applications involving elevated temperatures, corrosive environments, high mechanical loads and repeated thermal or mechanical cycling.
Typical applications include:
- Aerospace
- Oil and gas
- Petrochemical
- Chemical processing
- Power generation
- Gas turbines
- Marine systems
- Cryogenic equipment
- Industrial process systems
- High-temperature machinery
Turkish customers can specify ASTM, ASME, EN or other applicable project standards when requesting Inconel 718 fittings.
Inconel 718 Pipe Fittings Supplier in Nigeria
Mcneil Instruments supplies Inconel 718 Pipe Fittings for industrial requirements in Nigeria, including demanding applications in oil and gas, petrochemical, offshore and process industries.
Inconel 718 is used in selected oil and gas components because of its high strength and resistance to corrosion, fatigue and high-pressure service. Nickel Alloy 718 is also used in wellhead, completion and downhole applications.
Applications in Nigeria may include:
- Oil and gas
- Offshore systems
- Downhole equipment
- Wellhead equipment
- Petrochemical plants
- Chemical processing
- High-pressure process piping
- Marine applications
- Power generation
Mcneil Instruments supplies Inconel 718 Pipe Fittings to Nigeria from India according to the applicable product and project specifications.
Inconel 718 Pipe Fittings Supplier in India
Mcneil Instruments is an Inconel 718 Pipe Fittings Supplier in India, operating from Mumbai, Maharashtra.
The company supplies Inconel 718 pipe fittings for industrial piping systems requiring high strength and corrosion resistance.
Customers in India can specify:
- UNS N07718
- ASTM B366
- ASME SB366
- Fitting type
- Pipe size
- Schedule
- Quantity
- Heat-treatment condition
- Testing requirements
- Inspection requirements
Mcneil Instruments also supports export requirements for customers in the USA, Turkey and Nigeria.
Inconel 718 Pipe Fittings Exporter from India to USA, Turkey & Nigeria
Mcneil Instruments supplies Inconel 718 Pipe Fittings from India to the USA, Turkey and Nigeria for industrial, engineering, EPC and project-based requirements.
Export orders can include different Inconel 718 fitting configurations, sizes and schedules according to customer specifications.
For international enquiries, customers should provide:
- Destination country
- Fitting type
- UNS grade
- Nominal pipe size
- Schedule
- Quantity
- Applicable material standard
- Dimensional standard
- Heat-treatment requirements
- Inspection requirements
- Certification requirements
Inconel 718 Pipe Fittings Specifications
| Parameter | Typical Specification |
| Material | Inconel Alloy 718 |
| UNS | N07718 |
| Werkstoff Number | 2.4668 |
| Material Type | Nickel-based precipitation-hardenable superalloy |
| ASTM Fitting Standard | ASTM B366 |
| ASME Fitting Standard | ASME SB366 |
| Applicable Product Standards | ASTM B637, AMS 5662/5663, AMS 5589/5590 |
| Fitting Types | Elbows, Tees, Reducers, Caps, Crosses, Stub Ends, Bends |
| Dimensional Standards | ASME B16.9, B16.11, B16.28 |
| Construction | Forged / Machined / Fabricated as specified |
| Heat Treatment | Solution treated / Age hardened as specified |
| Finish | Pickled / Polished / Machined / As required |
The exact specification depends on the fitting type and application. For Inconel 718, material properties vary significantly with product form and heat-treatment condition, so the final specification should be confirmed before manufacture.
Chemical Composition of Inconel 718
Inconel 718 derives much of its performance from its nickel-chromium base and additions of molybdenum, niobium, titanium and aluminium.
| Element | Typical Requirement |
| Nickel | 50.0–55.0% |
| Chromium | 17.0–21.0% |
| Iron | Balance |
| Molybdenum | 2.80–3.30% |
| Niobium + Tantalum | 4.75–5.50% |
| Titanium | 0.65–1.15% |
| Aluminium | 0.20–0.80% |
| Carbon | 0.08% max |
| Manganese | 0.35% max |
| Silicon | 0.35% max |
| Copper | 0.30% max |
| Cobalt | 1.00% max |
These ranges are representative of commonly specified Alloy 718 chemistry; the applicable material standard and mill test certificate should be used for final acceptance.
Mechanical Properties of Inconel 718 Pipe Fittings
Inconel 718 develops very high mechanical strength through precipitation hardening. The final mechanical properties depend on the product form and heat-treatment condition.
For an age-hardened condition, commonly referenced values can reach approximately:
| Property | Typical Value |
| Tensile Strength | 1240 MPa min |
| Yield Strength | 1030 MPa min |
| Elongation | 12% min |
| Hardness | Depending on condition |
These values should not be treated as universal requirements for every Inconel 718 fitting. The applicable ASTM, ASME, AMS or customer specification controls the final mechanical requirements.
Equivalent Grades
| Standard | Grade |
| UNS | N07718 |
| Werkstoff | 2.4668 |
| DIN | NiCr19Fe19Nb5Mo3 |
| AMS | 5662 / 5663 |
| ASTM | B637 (Material) |
Why Choose Inconel 718 Pipe Fittings?
High Mechanical Strength
Inconel 718 develops exceptionally high tensile and yield strength after appropriate precipitation hardening. This makes it useful for components subjected to high mechanical and pressure loads.
Excellent Fatigue Resistance
The alloy offers strong fatigue performance, making it useful for components subjected to cyclic loading and repeated mechanical stresses.
Creep-Rupture Resistance
Inconel 718 maintains useful creep and rupture strength at elevated temperatures, making it suitable for selected high-temperature applications.
Corrosion Resistance
The chromium and molybdenum content provides resistance to a range of corrosive environments, while the nickel base provides additional stability in demanding applications.
High-Temperature Performance
Alloy 718 is designed for high-strength service at elevated temperatures and is commonly used up to approximately 650–700°C depending on the application and material condition.
Cryogenic Performance
Inconel 718 also retains useful strength and toughness at cryogenic temperatures, which makes it relevant to selected cryogenic equipment and aerospace applications.
Good Weldability
One of the notable characteristics of Alloy 718 is its relatively good weldability for a precipitation-hardenable superalloy. Its slow age-hardening response helps reduce problems associated with welding and fabrication.
Types of Inconel 718 Pipe Fittings
Inconel 718 Elbows
Inconel 718 elbows are used to change the direction of piping systems.
Common configurations include:
- 45-degree elbows
- 90-degree elbows
- Long-radius elbows
- Short-radius elbows
- 180-degree return bends
Inconel 718 Tees
Inconel 718 tees provide branch connections in process and industrial piping systems.
Common configurations include:
- Equal tees
- Reducing tees
Inconel 718 Reducers
Reducers connect pipes with different nominal diameters.
Available configurations can include:
- Concentric reducers
- Eccentric reducers
Inconel 718 Pipe Caps
Inconel 718 caps are used to close and terminate pipe sections in process piping systems.
Inconel 718 Stub Ends
Stub ends are used with lap-joint flange assemblies and applications requiring convenient piping disassembly.
Inconel 718 Cross Fittings
Cross fittings provide four-way pipe connections where multiple branch lines are required.
Inconel 718 Pipe Bends
Inconel 718 bends provide gradual changes in piping direction and can be considered for applications where a specific bending radius is required.
Features of Inconel 718 Pipe Fittings
- Exceptional tensile and yield strength
- Excellent oxidation resistance
- Outstanding corrosion resistance
- Superior fatigue resistance
- High creep and stress rupture strength
- Excellent weldability
- High-temperature stability
- Good cryogenic toughness
- Long service life
- Reliable performance in demanding environments
Types of Inconel 718 Pipe Fittings
Inconel 718 pipe fittings are available in standard industrial configurations:
Elbows – Directional flow control under extreme pressure
Tees & Crosses – High-strength branching connections
Reducers – Controlled diameter transitions
Couplings & Unions – Secure straight-through joints
Caps & Plugs – Pressure-tight pipe end sealing
Stub Ends – Used with lap joint flanges for easy dismantling
Each fitting is manufactured to ensure leak-free operation and structural reliability.
Where Inconel 718 Pipe Fittings Are Used
Inconel 718 pipe fittings are commonly used in industries exposed to extreme stress and heat:
Aerospace Industry – Engine and fuel systems
Oil & Gas – High-pressure and high-temperature piping
Power Generation – Turbine and steam systems
Nuclear Industry – Structural and auxiliary piping
Defense Applications – High-load engineered systems
High-Temperature Process Plants – Thermal cycling environments
Inconel 718 is often selected where strength and fatigue resistance outweigh extreme corrosion resistance.
How to Choose the Right Inconel 718 Pipe Fittings
When selecting Inconel 718 pipe fittings, consider:
Required strength and fatigue resistance
Operating temperature and pressure
Heat treatment condition and mechanical requirements
Cyclic loading and vibration
Applicable engineering and industry standards
For pressure-critical and high-stress systems, Inconel 718 offers unmatched reliability.
Manufacturing, Supply & Export from India
We manufacture, supply, and export Inconel 718 pipe fittings using certified raw materials and precision-controlled manufacturing processes. Our fittings are:
Produced with tight dimensional tolerances
Heat treated to specified mechanical properties
Tested for pressure and structural integrity
Finished for high-temperature service
Securely packed for domestic and global shipment
We support EPC contractors, aerospace suppliers, power plants, and international buyers with consistent quality and dependable delivery.
Applications of Inconel 718 Pipe Fittings
Aerospace Industry
Inconel 718 is extensively used in aerospace applications requiring high strength, fatigue resistance and elevated-temperature performance.
Typical applications include:
- Jet engine components
- Turbine components
- High-temperature fasteners
- Aircraft structural components
- Rocket engine components
The aerospace industry was one of the original major application areas for Alloy 718.
Oil & Gas Industry
Inconel 718 is used in selected oil and gas applications where high strength and resistance to corrosive environments are required.
Applications include:
- Downhole equipment
- Wellhead components
- Completion equipment
- Connectors
- Valves
- High-pressure components
Oil-industry applications for Alloy 718 include valves and precision tubing, while API/NACE-qualified variants are used for pressure-control and well-completion equipment.
Offshore Applications
Inconel 718 can be used in selected offshore systems exposed to high pressure, corrosive fluids and demanding mechanical conditions.
Chemical Processing
The alloy can be considered for selected chemical-processing applications where high strength and corrosion resistance are required.
Power Generation
Inconel 718 is used in selected gas turbine and power-generation components exposed to elevated temperatures and mechanical loads.
Cryogenic Applications
Its combination of strength and toughness at low temperatures makes Inconel 718 suitable for selected cryogenic systems.
Marine Applications
Inconel 718 can be used in selected marine and offshore components requiring high strength and corrosion resistance.
Nuclear Applications
The alloy is also used in selected nuclear applications where high mechanical strength and temperature performance are important.
Why Choose Mcneil Instruments for Inconel 718 Pipe Fittings?
Mcneil Instruments supplies Inconel 718 Pipe Fittings from India to customers in the USA, Turkey and Nigeria.
Key advantages include:
- Inconel 718 / UNS N07718 options
- ASTM B366 specifications
- Multiple fitting configurations
- Different sizes and schedules
- Technical specification support
- Heat-treatment options according to requirements
- Inspection and testing support
- Material certification
- Export-oriented supply
- Support for EPC and industrial projects
- Custom requirements based on project specifications
With its base in Mumbai, India, Mcneil Instruments supports Inconel 718 piping requirements for customers in India, USA, Turkey and Nigeria.
Countries We Export To
Mcneil Instrument exports Inconel 718 Pipe Fittings to:
- United States
- Canada
- United Kingdom
- Germany
- France
- Italy
- Netherlands
- UAE
- Saudi Arabia
- Qatar
- Kuwait
- Oman
- Bahrain
- South Africa
- Nigeria
- Australia
- Singapore
- Malaysia
- Indonesia
- Thailand
- Vietnam
- Brazil
Frequently Asked Questions – Inconel 718 Pipe Fittings
What are Inconel 718 Pipe Fittings?
Inconel 718 Pipe Fittings are piping components manufactured from a precipitation-hardenable nickel-based superalloy. They are used in demanding piping systems requiring high strength, corrosion resistance and reliable performance across a wide temperature range.
What is Inconel 718?
Inconel 718 is a nickel-chromium-based precipitation-hardenable alloy containing iron, niobium and molybdenum. It is commonly identified as UNS N07718 and Werkstoff 2.4668.
What is ASTM B366?
ASTM B366 is a specification associated with wrought nickel and nickel-alloy pipe fittings. Inconel 718 fittings can be specified according to applicable ASTM B366 requirements.
Is Inconel 718 suitable for high-temperature applications?
Yes. Inconel 718 is designed to maintain high mechanical strength and useful corrosion resistance at elevated temperatures. Depending on product form and service conditions, it is commonly used around 650–700°C.
Is Inconel 718 suitable for cryogenic applications?
Yes. Inconel 718 retains useful mechanical properties at cryogenic temperatures and is used in selected cryogenic and aerospace applications.
Is Inconel 718 suitable for oil and gas applications?
Yes. Inconel 718 is used in selected oil and gas applications including downhole equipment, wellhead components, connectors, valves and completion equipment. Specialized API/NACE-compliant versions are available for applicable sour-service applications.
What is the difference between Inconel 718 and Inconel 625?
Inconel 718 is precipitation-hardenable and provides very high mechanical strength, while Inconel 625 is primarily solid-solution strengthened and is widely selected for demanding corrosion-resistant applications.
What standards are used for Inconel 718 Pipe Fittings?
Depending on the application and product form, relevant standards can include ASTM B366, ASME SB366, ASME B16.9, ASME B16.11, ASTM B637, AMS specifications and applicable API/NACE requirements.