Inconel 718 Pipes Supplier in India

What are Inconel 718 Pipes?

Inconel 718 Pipes are nickel-chromium alloy pipes developed for applications requiring high strength, excellent corrosion resistance, and reliable performance at elevated temperatures. The alloy is precipitation-hardenable and is widely selected for demanding applications where mechanical strength and resistance to thermal degradation are important.

The combination of nickel, chromium, iron, molybdenum, niobium and other alloying elements gives Inconel 718 Pipes high tensile strength, good fatigue resistance and good resistance to oxidation and corrosion. The alloy maintains useful mechanical properties over a broad temperature range and is suitable for components exposed to high mechanical and thermal stresses.

Inconel 718 Pipes are used in aerospace systems, gas turbines, power generation equipment, oil and gas applications, chemical processing, and other demanding industrial systems. They are available in different outside diameters, wall thicknesses, schedules and lengths according to applicable standards and project requirements.

Kamal Steels is an Inconel 718 Pipes Supplier & Exporter in India, supplying Inconel 718 Pipes in standard and customized sizes, wall thicknesses, schedules and lengths. Products can be supplied with applicable testing, inspection, material certificates and documentation according to customer and project specifications.

Inconel 718 Pipes

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Inconel 718 Pipe Specifications

Kamal Steels supplies and exports Inconel 718 Pipes manufactured in accordance with internationally recognized ASTM, ASME, and DIN standards. Produced from premium-quality Inconel Alloy 718, these pipes offer exceptional tensile strength, fatigue resistance, oxidation resistance, and excellent performance under high-temperature and high-pressure service conditions. Our Inconel 718 Pipes are available in seamless and welded forms with multiple sizes, schedules, wall thicknesses, and custom lengths to meet the requirements of aerospace, oil & gas, petrochemical, marine, nuclear, and power generation industries.

Product Inconel 718 Pipes
Material Grade Inconel Alloy 718 (UNS N07718 / WNR 2.4668)
Specifications ASTM B983, ASTM B704, ASME SB983, ASME SB704
Pipe Type Seamless & Welded
Outside Diameter ½" NB to 24" NB
Wall Thickness SCH 5S to SCH XXS
Length Single Random, Double Random, 6 Meter & Custom Cut Lengths
End Type Plain End, Bevelled End, Threaded End
Surface Finish Annealed, Pickled, Bright Annealed, Polished
Certification EN 10204 3.1 Mill Test Certificate (MTC)

Inconel 718 Pipe Size Chart

Inconel 718 Pipes are available in different nominal sizes, outside diameters, wall thicknesses and schedules. The required pipe dimensions can be selected according to pressure, temperature, flow requirements and project specifications.

Nominal Pipe Size (NPS) Outside Diameter (mm) Common Schedule Options
1/2" 21.3 Sch 5, 10, 40, 80
1" 33.4 Sch 5, 10, 40, 80
2" 60.3 Sch 5, 10, 40, 80
3" 88.9 Sch 10, 40, 80
4" 114.3 Sch 10, 40, 80
6" 168.3 Sch 10, 40, 40S, 80
8" 219.1 Sch 10, 40, 40S, 80
10" 273.1 Sch 10, 40, 40S, 80
12" 323.9 Sch 10, 40, 40S, 80

Inconel 718 Pipe Weight Chart

The weight of an Inconel 718 Pipe depends on its outside diameter, wall thickness, length and material density. Pipes with thicker walls have a higher weight per metre than pipes with lighter schedules.

Pipe Size Outside Diameter (mm) Schedule Wall Thickness (mm) Approx. Weight (kg/m)
1" 33.4 Sch 40 3.38 2.91
2" 60.3 Sch 40 3.91 6.78
3" 88.9 Sch 40 5.49 13.10
4" 114.3 Sch 40 6.02 17.65
6" 168.3 Sch 40 7.11 28.70
8" 219.1 Sch 40 8.18 42.20

The values are approximate and should be confirmed against the actual pipe dimensions, material density, dimensional tolerances and applicable product standard.

Inconel 718 Pipe Schedule Chart

The Inconel 718 Pipe Schedule identifies the wall thickness associated with a nominal pipe size. Schedule selection depends on design pressure, operating temperature, mechanical loading, corrosion allowance and applicable piping requirements.

Schedule General Description Typical Consideration
Sch 5 Light wall Lightweight and lower-pressure applications
Sch 10 Light to medium wall General industrial piping applications
Sch 40 Standard wall Common pressure piping applications
Sch 80 Heavy wall Higher-pressure applications
Sch 160 Extra heavy wall Special high-pressure applications

ASTM B444 Inconel 718 Pipe

ASTM B444 Inconel 718 Pipes are nickel-based alloy seamless pipes manufactured for applications requiring corrosion resistance and elevated-temperature performance. Inconel 718 is identified by UNS N07718 and is a precipitation-hardenable nickel-chromium alloy.

The alloy is known for its high strength after suitable heat treatment and its resistance to oxidation and corrosion in demanding service conditions. It is particularly valuable where mechanical loads and elevated temperatures occur together.

Specification Inconel 718 Pipe
ASTM ASTM B444
ASME ASME SB444
UNS N07718
Grade Inconel 718
Material Nickel-Chromium Alloy
Product Form Seamless Pipe and Tube

Inconel 718 Pipe Features

Inconel 718 Pipes provide a combination of high strength, corrosion resistance, fatigue resistance, and high-temperature capability. These characteristics make the alloy suitable for demanding aerospace, power generation, oil and gas and industrial applications.

  • High tensile and yield strength after precipitation hardening.
  • Good mechanical performance at elevated temperatures.
  • Excellent resistance to oxidation and corrosion.
  • Good resistance to stress-corrosion cracking.
  • Good fatigue and creep resistance.
  • Suitable for demanding high-temperature applications.
  • Good weldability compared with many precipitation-hardenable nickel alloys.
  • Suitable for aerospace and high-performance industrial equipment.

Inconel 718 Pipe Chemical Composition

Inconel 718 contains nickel, chromium, iron, molybdenum, niobium and other alloying elements. The controlled composition enables precipitation hardening and provides the alloy with its characteristic combination of strength and corrosion resistance.

Element Composition (%)
Nickel 50.0 - 55.0
Chromium 17.0 - 21.0
Iron Balance
Niobium + Tantalum 4.75 - 5.50
Molybdenum 2.80 - 3.30
Titanium 0.65 - 1.15
Aluminium 0.20 - 0.80
Cobalt 1.0 max.
Carbon 0.08 max.
Manganese 0.35 max.
Silicon 0.35 max.
Copper 0.30 max.

Chemical composition values should be verified against the applicable material specification and the material test certificate supplied with the pipes.

Inconel 718 Pipe Mechanical Properties

Inconel 718 Pipes are capable of achieving high mechanical strength through appropriate heat treatment. Mechanical properties vary according to product form, dimensions, heat-treatment condition and applicable specification.

Mechanical Property Typical Minimum Value*
Tensile Strength 1240 MPa
Yield Strength 1035 MPa
Elongation 12%

*Mechanical property requirements should be confirmed against the applicable ASTM/ASME specification, product dimensions, heat-treatment condition and material test certificate.

Inconel 718 Pipe Equivalent Grades

Inconel 718 is identified through several international material designation systems. These designations are used in engineering specifications, procurement documents and material certification.

Standard / Designation Equivalent Grade
UNS N07718
Werkstoff Number 2.4668
Common Trade Name Inconel 718
EN Designation NiCr19Fe19Nb5Mo3

Equivalent-grade designations should be checked against the applicable product standard before material substitution or project approval.

Inconel 718 Pipe vs Other Inconel Grades

Different Inconel Grades are selected according to the required combination of strength, corrosion resistance, oxidation resistance and operating temperature. Inconel 718 is particularly suited to applications where very high mechanical strength is required at elevated temperatures.

Grade Main Characteristics Typical Selection
Inconel 600 Good corrosion and oxidation resistance Chemical processing and heat-resistant applications
Inconel 601 Excellent high-temperature oxidation resistance Heat treatment and thermal processing equipment
Inconel 625 High strength and excellent resistance to severe corrosion Marine, chemical, offshore, oil and gas applications
Inconel 718 Very high strength and good high-temperature performance Aerospace, gas turbines and high-strength applications

The appropriate Inconel grade should be selected according to operating temperature, pressure, chemical environment, mechanical loading and required service life.

Inconel 718 Pipe Applications

Inconel 718 Pipes are used in demanding applications where high strength, corrosion resistance and reliable performance under thermal and mechanical loads are required.

Application Typical Use
Aerospace Systems High-strength components and piping exposed to elevated temperatures.
Gas Turbines High-temperature components and systems exposed to mechanical stress.
Jet Engines Selected engine and high-temperature aerospace applications.
Power Generation High-temperature and high-strength equipment and piping systems.
Oil & Gas Equipment High-strength components for demanding oil and gas environments.
Chemical Processing Corrosion-resistant piping and equipment.
Industrial Equipment Specialized components exposed to high mechanical and thermal loads.

Industries Using Inconel 718 Pipes

Inconel 718 Pipes are used across industries that require high mechanical strength, corrosion resistance and dependable performance under demanding temperature and pressure conditions.

Industry Typical Applications
Aerospace Industry Aircraft engines, aerospace systems and high-temperature components.
Power Generation Industry Gas turbines and high-temperature power-generation equipment.
Oil & Gas Industry High-strength equipment and components used in demanding service environments.
Chemical Industry Corrosion-resistant process equipment and piping systems.
Petrochemical Industry High-temperature process equipment and specialized components.
Marine Industry Selected high-strength and corrosion-resistant applications.
Industrial Manufacturing Specialized equipment requiring high strength and thermal performance.

Kamal Steels supplies Inconel 718 Pipes in different sizes, schedules, wall thicknesses and lengths according to customer and project requirements.

Frequently Asked Questions

Inconel 718 Pipes are manufactured from Inconel Alloy 718 (UNS N07718), a precipitation-hardened nickel-chromium superalloy that offers exceptional mechanical strength, corrosion resistance, and high-temperature performance.

Inconel 718 Pipes are supplied according to ASTM B983, ASTM B704, ASME SB983, and ASME SB704 standards, ensuring excellent quality, dimensional accuracy, and reliable industrial performance.

Inconel 718 Pipes offer exceptional tensile strength, fatigue resistance, creep resistance, oxidation resistance, corrosion resistance, and excellent weldability for demanding industrial applications.

Inconel 718 Pipes are widely used in aerospace engineering, gas turbines, offshore oil & gas platforms, petrochemical plants, nuclear power stations, marine engineering, cryogenic systems, and power generation industries.

Yes. Inconel 718 Pipes are available in both seamless and welded forms in various sizes, schedules, wall thicknesses, and custom lengths to meet industrial and project-specific requirements.

Every Inconel 718 Pipe undergoes Positive Material Identification (PMI), Hydrostatic Testing, Ultrasonic Testing (UT), Chemical Analysis, Mechanical Testing, Hardness Testing, Dimensional Inspection, and Visual Examination before dispatch.

Yes. Inconel 718 maintains excellent mechanical strength, oxidation resistance, and creep resistance at elevated temperatures up to approximately 700°C, making it ideal for high-temperature industrial service.

Inconel 718 is a precipitation-hardened alloy that offers significantly higher tensile strength, yield strength, and creep resistance than Inconel 625, making it ideal for aerospace, gas turbines, and other high-stress applications.

Yes. Every shipment includes EN 10204 3.1 Mill Test Certificates, complete material traceability, inspection reports, and third-party inspection certificates upon customer request.

Kamal Steels is a trusted supplier and exporter of Inconel 718 Pipes, offering certified materials, ready stock, competitive pricing, strict quality control, export-quality packaging, complete documentation, and timely worldwide delivery for critical industrial projects.