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Inconel Flanges

Inconel 600 625 718 Industrial Flanges Manufacturer Supplier Exporter India />
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Inconel Flanges Manufacturer, Supplier & Exporter

Inconel 600, 625, 718 & 825 Flanges | ASTM B564 | ASME B16.5 Manufacturer & Exporter

Leading Inconel Flanges Manufacturer, Supplier & Exporter in India

STAINLESS INDIA is a prominent manufacturer and worldwide exporter of Inconel Flanges in grades Inconel 600, 625, 601, 718 & 800/800H/800HT. Our high-performance Inconel alloy flanges find extensive application in oil & gas, petrochemical, chemical processing, aerospace, high-temperature systems, marine engineering, and nuclear power plants.

Manufacturing Standards of Inconel Flanges

We produce Inconel flanges in accordance with ASME B16.5, ASME B16.47, ASTM B564, DIN, EN & ISO standards.

Material Properties of Inconel Flanges

Inconel Flanges are constructed from nickel-chromium superalloys recognized for their outstanding heat resistance, oxidation resistance, corrosion resistance, and exceptional mechanical strength . These flanges operate reliably in acidic, seawater, high-temperature, and high-pressure conditions, rendering them suitable for critical engineering applications.

Advantages of Inconel Flanges

  • Excellent resistance to high-temperature oxidation.
  • Outstanding corrosion resistance in seawater and chemical environments.
  • Superior resistance to chloride stress corrosion cracking.
  • High mechanical strength at elevated temperatures.
  • Excellent fatigue and creep resistance.
  • Long service life with minimal maintenance.
  • Suitable for cryogenic and high-pressure applications.
  • Excellent weldability and fabrication characteristics.

About us for Inconel Flanges

Inconel flanges are high-performance forged pipe flanges manufactured from nickel-chromium-based superalloys that provide outstanding resistance to oxidation, carburization, pitting, chloride stress corrosion cracking, and high-temperature deformation. These flanges are widely used in critical industrial piping systems where conventional stainless steel materials cannot withstand extreme pressure, corrosive chemicals, or elevated operating temperatures.

STAINLESS INDIA manufactures Inconel Flanges in accordance with ASTM B564, ASME B16.5, ASME B16.47, MSS SP-44, DIN, EN, and ISO standards. Our manufacturing process includes precision forging, CNC machining, dimensional inspection, PMI testing, and pressure testing to ensure reliable performance in demanding industrial applications.

Manufacturing Process of Inconel Flanges

Every Inconel flange manufactured by STAINLESS INDIA undergoes a strict production process beginning with premium alloy procurement, hot forging, precision CNC machining, drilling, beveling, facing, dimensional inspection, and final quality control. Each flange is manufactured according to international specifications to ensure complete dimensional accuracy and pressure integrity.

After machining, every flange undergoes visual inspection, PMI testing, hardness testing, dimensional verification, and surface finishing before packing for domestic and international shipment.

Types of Inconel Flanges We Offer

Slip On Flanges (SORF)
Weld Neck Flanges (WNRF)
Blind Flanges (BLRF)
Threaded & Socket Weld
Lap Joint Flanges (LJRF)
Long Weld Neck Flanges
RTJ Flanges (Ring Type Joint)
Plate & Custom Forged Flanges

Grades & Specifications

  • Inconel 600, 601, 625, 718
  • Incoloy 800 / 800H / 800HT
  • Inconel X-750 (High Stress)

  • Size: ½” to 48”
  • Class: 150# to 2500#
  • Facing: RF, FF, RTJ

Quick Product Specifications

  • Material : Inconel 600, 601, 625, 718, 825
  • Standards : ASTM B564, ASME B16.5, ASME B16.47
  • Size : ½" to 48"
  • Pressure Class : 150# to 2500#
  • Facing : RF, FF, RTJ
  • Manufacturing : Forged & CNC Machined
  • Inspection : PMI, UT, Hydro, Visual
  • MTC : EN 10204 3.1 Available

International Manufacturing Standards for Inconel Flanges

ASTM B564 / SB564 ASME B16.5 / B16.47 EN 1092-1
BS Standards ISO Standards DIN Standards

Quality Assurance & Inspection

Quality remains our highest priority throughout the manufacturing process. Every Inconel flange is inspected according to international quality procedures before dispatch.

  • Positive Material Identification (PMI)
  • Dimensional Inspection
  • Visual Inspection
  • Hardness Testing
  • Ultrasonic Testing (UT)
  • Hydrostatic Testing (where applicable)
  • Third Party Inspection (TUV, BV, DNV, SGS, Lloyd's Register)
  • EN 10204 3.1 Mill Test Certificate

Chemical & Mechanical Properties of Inconel Flanges

The chemical composition and mechanical properties of Inconel alloys vary depending on the grade. Inconel 600 offers excellent oxidation resistance, Inconel 625 provides superior corrosion resistance and strength, while Inconel 718 delivers exceptional mechanical performance at elevated temperatures. Material selection depends on operating pressure, temperature, corrosion exposure, and project specifications.

All supplied Inconel flanges comply with the applicable ASTM material specifications and are manufactured using certified raw materials with complete mill traceability.

Available Pressure Classes

  • Class 150
  • Class 300
  • Class 400
  • Class 600
  • Class 900
  • Class 1500
  • Class 2500

Pressure ratings are manufactured according to ASME B16.5 and ASME B16.47 standards and are available with Raised Face (RF), Flat Face (FF) and Ring Type Joint (RTJ) facings.

Available Facing Types

  • Raised Face (RF)
  • Flat Face (FF)
  • Ring Type Joint (RTJ)
  • Tongue & Groove
  • Male & Female
  • Custom Machined Facing

International Standards Followed

Our Inconel flanges are manufactured according to ASTM B564, ASME B16.5, ASME B16.47, MSS SP-44, EN 1092-1, DIN, BS and ISO standards. Every flange is inspected for dimensional accuracy, pressure rating, facing finish and material conformity before dispatch.

Equivalent Material Grades

  • Inconel 600 – UNS N06600
  • Inconel 601 – UNS N06601
  • Inconel 625 – UNS N06625
  • Inconel 718 – UNS N07718
  • Incoloy 800 – UNS N08800
  • Incoloy 800H – UNS N08810
  • Incoloy 800HT – UNS N08811

Industries We Serve

Our Inconel flanges are widely supplied for EPC contractors, refineries, LNG terminals, offshore platforms, FPSO projects, desalination plants, fertilizer plants, chemical processing facilities, pharmaceutical manufacturing, marine engineering, power generation, nuclear projects, shipbuilding, aerospace engineering and heavy industrial piping systems across India and international markets.

Superior Engineering

Inconel Industrial Flanges

Exceptional Strength

Engineered for high tensile strength and remarkable resistance to creep and fatigue under stress.

Thermal Endurance

Maintains durability against high-temperature oxidation with resistance up to 1090°C.

Corrosion Shield

Superior functionality in aggressive acidic, chloride, and seawater conditions for offshore use.

Non-Magnetic

Non-magnetic properties paired with an extended service life for specialized electronic and aerospace projects.

CNC Precision

Each flange is CNC-machined and inspected to meet strict international tolerances and pressure ratings.

Cryogenic Stability

Certain grades like Inconel 718 are suitable for cryogenic temperatures and high-tensile applications.

Trust & Excellence

Why Choose STAINLESS INDIA for Inconel Flanges?

Certified Manufacturer

ISO 9001:2015 & PED Certified company offering in-house forging, machining, and professional heat treatment services.

Advanced QC Testing

100% testing conducted with UT, PMI, Hydro, and IGC as necessary to ensure flawless alloy integrity.

Global Reach

Exporting to over 70 countries with full EN 10204 3.1 / 3.2 MTC and appropriate documentation provided.

Largest Inventory

Massive stock of Inconel 600, 625, and 718 Flanges available for immediate dispatch worldwide.

Custom Solutions

Custom forged flanges available with specialized marking, coating, and export-grade packaging options.

Factory Direct

Get premium Inconel quality with competitive pricing directly from the manufacturing unit.

Why Engineers Specify Inconel Flanges

  • Excellent resistance to high-temperature oxidation.
  • Outstanding corrosion resistance.
  • Reliable performance in seawater applications.
  • High mechanical strength.
  • Long service life.
  • Low maintenance costs.
  • Excellent weldability.
  • Suitable for critical process industries.

Why Industries Choose Inconel Flanges

Industries such as oil & gas, offshore platforms, chemical processing, aerospace, marine engineering, desalination plants, nuclear power stations, and petrochemical facilities depend on Inconel flanges because of their exceptional corrosion resistance, high-temperature stability, and long operational life. Their ability to perform under aggressive process conditions makes them one of the most trusted piping connection solutions worldwide.

Applications of Inconel Flanges Across Industries

Oil & Gas Refineries
Marine & Desalination
Nuclear Reactors
Aerospace Engines
Petrochemical Units
Fertilizer Manufacturing
Heat Exchangers
Power Generation
Supply Note:

Our Inconel flanges are specifically manufactured to withstand the extreme corrosive environments found in deep-sea engineering and the high-temperature stress of aerospace and nuclear applications.

Looking for a Reliable Inconel Flange Supplier?

Whether you require standard ASME flanges, custom forged flanges, or project quantities for oil & gas, petrochemical, offshore, marine, aerospace, or power generation industries, STAINLESS INDIA can provide complete material solutions with certified quality, competitive pricing, and worldwide delivery.

What Are Inconel Flanges?

Inconel flanges are forged piping components manufactured from nickel-chromium superalloys that provide exceptional corrosion resistance, oxidation resistance, and high-temperature strength. They are commonly used in oil & gas, petrochemical, marine, aerospace, chemical processing, and power generation industries where conventional stainless steel flanges cannot withstand extreme operating conditions.

Frequently Asked Questions About Inconel Flanges

Inconel flanges are employed in environments characterized by high temperatures and significant corrosion, such as offshore platforms, chemical processing facilities, and aerospace applications.

Our flanges are manufactured in strict accordance with global standards, including ASTM B564, ASME B16.5, B16.47, and MSS-SP-44 .

Yes. We offer NACE MR0175 certified flanges specifically designed for sour gas (H₂S) environments to prevent sulfide stress cracking.

Inconel 600, 625, and 718 are the grades that see the highest demand due to their versatile mechanical and corrosion-resistant properties.

Yes, we are fully capable of producing custom sizes, unique dimensions, and non-standard forged flanges based on your specific engineering drawings.

Certainly. We provide custom dimensions, unique bolt patterns, and various facing types, including RTJ (Ring Type Joint), FF (Flat Face), and RF (Raised Face) .

Most standard sizes are readily available from our extensive stock. For non-stock items, global delivery is typically achieved within 1 to 2 weeks .

We manufacture Inconel flanges from ½ inch to 48 inches in accordance with ASME B16.5 and ASME B16.47 standards. Custom sizes are also available on request.

Our Inconel flanges are available in Class 150, 300, 400, 600, 900, 1500 and 2500 pressure ratings with RF, FF and RTJ facings.

Yes. Every shipment can be supplied with EN 10204 3.1 Mill Test Certificates along with inspection reports and complete material traceability.

Yes. STAINLESS INDIA exports Inconel flanges to more than 70 countries with export packing, third-party inspection, and complete shipping documentation.

Yes. We manufacture custom forged Inconel flanges according to customer drawings, project specifications, international standards, and special dimensional requirements.

Type of Inconel Flanges Available

Explore our comprehensive range of high-performance superalloy and nickel alloy flanges.

Inconel Flanges Inconel 625 Flanges Inconel 600 Flange Manufacturer
ASTM B564 Flanges Inconel 625 Weld Neck Flange Supplier Inconel 600 Blind Flange Exporter
Inconel Flange Manufacturer in India Inconel 718 High-Temperature Flanges Nickel Alloy Flanges
Superalloy Flanges Corrosion Resistant Flanges Inconel Flange Exporter India
ASTM B564 Flange Manufacturer Inconel Flange for Offshore & Marine High Temperature Nickel Alloy Flanges
RTJ Inconel Flange India Inconel 600 Slip-On Flange ASTM B564 Flanges Exporter
Inconel Blind Flange Stockist Threaded Inconel Flanges Weld Neck Flange Inconel 718

Packaging, Marking & Export Documentation

Our Inconel flanges are packed using export-quality wooden boxes, fumigated crates, bubble wrapping, and waterproof packing materials to prevent damage during international transportation. Every shipment includes proper product marking, heat number traceability, batch identification, and complete export documentation.

Standard shipment documents include Commercial Invoice, Packing List, EN 10204 3.1 Mill Test Certificate, Certificate of Origin, Inspection Reports, and Third-Party Inspection Certificates whenever required.

Worldwide Supply Capability

STAINLESS INDIA supplies Inconel flanges throughout India and exports to customers across Asia, Europe, North America, South America, the Middle East, and Africa. We support EPC contractors, OEM manufacturers, stockists, distributors, engineering companies, and industrial maintenance projects with fast production schedules and reliable export logistics.

Global Export Network

We export to more than 70+ countries:

USA • UK • Germany • Italy • UAE • Saudi Arabia • Qatar • Oman • Kuwait • Singapore • Malaysia • Indonesia • Australia • South Africa • Brazil • Mexico • India

All Shipments Include:
  • Packing List
  • Invoice
  • MTC 3.1 / 3.2
  • Third-Party Inspection (TUV/LR/BV) if required
  • Heat Number Traceability

Supply Capabilities

STAINLESS INDIA maintains ready stock of standard Inconel flange sizes while also manufacturing custom forged flanges according to customer drawings. We support urgent shutdown requirements, project quantities, export packaging, third-party inspection, and worldwide shipping with complete documentation.

Information Required for Quotation

  • Flange Type
  • Material Grade
  • Size (NPS)
  • Pressure Class
  • Facing Type
  • Quantity
  • Applicable Standard
  • Inspection Requirement
  • Delivery Location

How to Select the Right Inconel Flange

Selecting the correct Inconel flange depends on operating temperature, working pressure, corrosion resistance requirements, flange type, piping standard, and process media. Inconel 600 is commonly selected for oxidation resistance, Inconel 625 for aggressive corrosion environments, and Inconel 718 for high-strength applications operating at elevated temperatures. Our engineering team assists customers in selecting the most suitable flange material and specification for each project.

Why Buy Inconel Flanges from STAINLESS INDIA?

  • ISO Certified Manufacturer
  • Large Ready Stock
  • Competitive Factory Pricing
  • Worldwide Export
  • Third-Party Inspection Available
  • EN 10204 3.1 Certification
  • Custom Manufacturing
  • Fast Delivery
  • Technical Support
  • Over 20 Years of Industry Experience

Technical Support & Engineering Assistance

Our experienced technical team assists customers with material selection, international standards, pressure class selection, flange dimensions, corrosion resistance, inspection requirements, and export documentation to ensure every project receives the correct engineering solution.

Request a Quotation Today

Looking for a dependable Inconel Flanges? We respond within 24 hours.