Description

Inconel 625 Flanges – Weld Neck, Blind, Slip-On & Custom Flanges

Inconel 625 Flanges Supplier, Stockist & Global Exporter

Vivid Steel & Engineering Co. Ltd. is a trusted supplier, stockist, importer and global exporter of Inconel 625 Flanges, offering a comprehensive range of Inconel 625 Weld Neck Flanges, Slip-On Flanges, Blind Flanges, Socket Weld Flanges, Threaded Flanges, Lap Joint Flanges, Orifice Flanges, Spectacle Blind Flanges, Long Weld Neck Flanges and Custom Flanges.

Inconel 625, designated UNS N06625 / WNR 2.4856, is a nickel-chromium-molybdenum alloy known for its excellent combination of high strength, corrosion resistance, oxidation resistance, fatigue resistance and resistance to chloride-ion stress corrosion cracking.

Our Inconel 625 Flanges are supplied for critical piping, pressure and process applications across the Oil & Gas, Petrochemical, Chemical Processing, Marine, Offshore, Power Generation, Aerospace, Pharmaceutical, Heat Exchanger and Heavy Engineering industries.

We supply Inconel 625 flanges according to applicable ASTM, ASME, API, MSS, EN, DIN, BS, JIS and other international standards, with standard and customised dimensions available according to customer drawings and project specifications.

Vivid Steel & Engineering Co. Ltd. exports Inconel 625 Flanges worldwide, serving customers across Asia, Europe, the Middle East, Africa, North America, South America and other international markets. We support EPC contractors, OEMs, distributors, fabricators, stockists and industrial end users with project-specific flange requirements.

Inconel 625 Flanges Specifications

Specification	Details
Product	Inconel 625 Flanges
Alloy	Inconel Alloy 625
UNS	N06625
Werkstoff Number	2.4856
EN Designation	NiCr22Mo9Nb
Material Type	Nickel-Chromium-Molybdenum Alloy
Forgings Material Standard	ASTM B564 / ASME SB564
Flange Dimensions	ASME B16.5 / ASME B16.47
Large Diameter Flanges	ASME B16.47, as applicable
Face Types	RF / FF / RTJ
Flange Types	WN / SO / BL / SW / THD / LJ / Orifice / Custom
Pressure Classes	150 / 300 / 600 / 900 / 1500 / 2500
Manufacturing	Forged / Machined
Condition	Annealed / Solution Annealed, as specified
Surface	Machined / Pickled / Bright / Mill Finish
Bore	Standard / Custom
Drilling	Standard / Custom
Standards	ASTM / ASME / API / MSS / EN / DIN / BS / JIS
Inspection	MTC / PMI / NDT / Third-Party Inspection

Exact specification depends on flange type, size, pressure class, manufacturing method and customer/project requirements.

Types of Inconel 625 Flanges

Vivid Steel & Engineering Co. Ltd. supplies a comprehensive range of Inconel 625 Flanges for piping, pressure equipment and industrial process systems.

Inconel 625 Weld Neck Flanges

Inconel 625 Weld Neck Flanges (WN Flanges) are designed for high-pressure and high-temperature piping applications where excellent mechanical integrity and fatigue resistance are required.

Available configurations include:

Raised Face Weld Neck Flanges
Flat Face Weld Neck Flanges
Ring Type Joint Weld Neck Flanges
Long Weld Neck Flanges
Custom Weld Neck Flanges

Inconel 625 Slip-On Flanges

Inconel 625 Slip-On Flanges (SO Flanges) are installed by sliding the flange over the pipe and welding it in position.

They are commonly used in process piping and general industrial applications.

Available face configurations:

RF Slip-On Flanges
FF Slip-On Flanges
Custom Slip-On Flanges

Inconel 625 Blind Flanges

Inconel 625 Blind Flanges (BLRF / BLFF) are used to close or terminate piping systems and provide access for inspection or maintenance.

They are commonly used in:

Pressure vessels
Piping systems
Process plants
Offshore systems
Oil & Gas facilities

Available as:

Raised Face Blind Flanges
Flat Face Blind Flanges
Ring Type Joint Blind Flanges
Spectacle Blind assemblies

Inconel 625 Socket Weld Flanges

Inconel 625 Socket Weld Flanges (SW Flanges) are commonly used for smaller-diameter, higher-pressure piping systems.

They provide a compact flange connection and are suitable for specialised industrial applications.

Inconel 625 Threaded Flanges

Inconel 625 Threaded Flanges are suitable for applications where welding is undesirable or impractical.

Available with:

NPT Thread
BSP Thread
Custom Threading

Inconel 625 Lap Joint Flanges

Inconel 625 Lap Joint Flanges are used with stub ends and are particularly useful where frequent dismantling is required.

Applications include:

Chemical process systems
Corrosive piping
Maintenance-intensive systems
Specialised process plants

Inconel 625 Orifice Flanges

Inconel 625 Orifice Flanges are manufactured for flow measurement applications using orifice plates and pressure-tapping arrangements.

They can be supplied with:

Raised Face
Ring Type Joint
Jack Screws
Pressure Tappings
Custom configurations

Inconel 625 Spectacle Blind Flanges

Spectacle blinds are used to provide positive isolation in piping systems.

Available configurations include:

Figure-8 / Spectacle Blinds
Paddle Blinds
Paddle Spacers
Line Blinds
Custom Isolation Components

Inconel 625 Long Weld Neck Flanges

Long Weld Neck Flanges are used in demanding applications where extended neck length and additional structural support are required.

They are widely used in high-pressure piping and process equipment applications.

Inconel 625 Reducing Flanges

Inconel 625 Reducing Flanges connect pipes of different diameters and can be manufactured according to customer requirements.

Inconel 625 Custom Flanges

Vivid Steel & Engineering Co. Ltd. can arrange custom Inconel 625 Flanges according to:

Customer drawings
OD
ID / Bore
Thickness
PCD
Number of holes
Hole diameter
Pressure class
Facing
Special drilling
Custom dimensions

Inconel 625 Flange Facing Types

We can supply Inconel 625 Flanges with different face configurations, including:

Raised Face (RF)

A commonly used flange facing for industrial piping and pressure applications.

Flat Face (FF)

Used where a flat mating surface is required.

Ring Type Joint (RTJ)

Used for high-pressure and high-temperature applications requiring a reliable metal-to-metal sealing system.

Male & Female Face

Available for specialised piping and process applications.

Tongue & Groove

Used for specialised sealing arrangements.

Inconel 625 Flange Pressure Classes

Depending on flange type and applicable dimensional standard, pressure classes may include:

Class 150
Class 300
Class 600
Class 900
Class 1500
Class 2500

Pressure-temperature ratings must be verified against the applicable ASME standard and actual material condition.

Inconel 625 Chemical Composition

The chemical composition of Inconel 625 provides excellent corrosion resistance, strength and performance in aggressive environments.

Element	Composition (%)
Nickel (Ni)	58.0 min
Chromium (Cr)	20.0 – 23.0
Molybdenum (Mo)	8.0 – 10.0
Niobium + Tantalum (Nb + Ta)	3.15 – 4.15
Iron (Fe)	5.0 max
Carbon (C)	0.10 max
Manganese (Mn)	0.50 max
Silicon (Si)	0.50 max
Aluminium (Al)	0.40 max
Titanium (Ti)	0.40 max
Cobalt (Co)	1.0 max
Phosphorus (P)	0.015 max
Sulphur (S)	0.015 max

Actual chemistry should be verified against the applicable specification and Mill Test Certificate.

Inconel 625 Flanges Mechanical Properties

The mechanical properties depend on the applicable material specification, flange thickness, manufacturing process and heat-treatment condition.

Typical Mechanical Properties

Property	Typical / Specification-Dependent Value
Tensile Strength	Approx. 827 MPa minimum or as specified
Yield Strength, 0.2% Offset	Approx. 414 MPa minimum or as specified
Elongation	Approx. 30% minimum or as specified
Density	Approx. 8.44 g/cm³
Melting Range	Approx. 1290–1350°C
Elastic Modulus	Approx. 207 GPa

Final mechanical requirements should be verified against the applicable ASTM B564 / ASME SB564 requirements and actual supplied condition.

Inconel 625 Flange Dimensions

Vivid Steel & Engineering Co. Ltd. supplies Inconel 625 Flanges in standard ASME dimensions and custom dimensions.

Common Inconel 625 Flange Sizes

Nominal Size	DN	Approx. Pipe OD
1/2″	DN 15	21.3 mm
3/4″	DN 20	26.7 mm
1″	DN 25	33.4 mm
1-1/4″	DN 32	42.2 mm
1-1/2″	DN 40	48.3 mm
2″	DN 50	60.3 mm
2-1/2″	DN 65	73.0 mm
3″	DN 80	88.9 mm
4″	DN 100	114.3 mm
5″	DN 125	141.3 mm
6″	DN 150	168.3 mm
8″	DN 200	219.1 mm
10″	DN 250	273.0 mm
12″	DN 300	323.9 mm
14″	DN 350	355.6 mm
16″	DN 400	406.4 mm
18″	DN 450	457.2 mm
20″	DN 500	508.0 mm
24″	DN 600	610.0 mm

Larger sizes can be supplied under applicable standards such as ASME B16.47 or as custom-engineered flanges.

Inconel 625 Flange Dimensions – ASME B16.5

Depending on nominal size and pressure class, flange dimensions can include:

Outside Diameter (OD)
Inside Diameter / Bore
Flange Thickness
Bolt Circle Diameter (PCD)
Number of Bolt Holes
Bolt Hole Diameter
Bolt Size
Raised Face Diameter
Raised Face Height
Hub Diameter
Hub Length
Overall Length

Dimensions vary by:

Flange Type + NPS + Pressure Class + Facing + Schedule/Bore

Therefore, the final dimensional drawing should always be checked against the applicable ASME B16.5 / ASME B16.47 standard.

Inconel 625 Flange Bore & Schedule

Flanges can be supplied with bores corresponding to various pipe schedules, including:

SCH 5 | SCH 10 | SCH 20 | SCH 30 | SCH 40 | STD | SCH 60 | SCH 80 | XS | SCH 100 | SCH 120 | SCH 140 | SCH 160 | XXS

Custom bore dimensions can also be manufactured according to customer drawings.

Inconel 625 Flange Applications

Inconel 625 Flanges are used in demanding piping systems requiring excellent corrosion resistance and high mechanical performance.

Oil & Gas

Used in:

Offshore platforms
Subsea systems
Wellhead equipment
Downhole systems
Oil & gas processing
Corrosive piping
High-pressure piping

Petrochemical Industry

Used for:

Process piping
Chemical processing
Reactors
Pressure equipment
Valves and piping systems

Chemical Processing

Inconel 625 Flanges are suitable for piping systems exposed to:

Chlorides
Acids
Aggressive chemicals
Corrosive process media
High-temperature environments

Marine & Offshore

The excellent resistance of Inconel 625 to seawater, pitting and crevice corrosion makes it suitable for:

Offshore platforms
Marine piping
Subsea equipment
Desalination systems
Marine process equipment

Power Generation

Used in specialised:

Process piping
High-temperature systems
Heat-transfer equipment
Power-generation equipment

Aerospace

Used in selected aerospace systems and components requiring high strength and corrosion resistance.

Heat Exchangers

Used for specialised heat-transfer and process piping applications.

Heavy Engineering

Suitable for high-performance equipment and engineered piping systems where corrosion resistance and mechanical strength are critical.

Testing & Inspection of Inconel 625 Flanges

Vivid Steel & Engineering Co. Ltd. can provide comprehensive inspection and testing according to customer and project requirements.

Chemical Analysis

Chemical composition can be verified to ensure compliance with UNS N06625 and applicable ASTM/ASME standards.

Mechanical Testing

Testing may include:

Tensile Test
Yield Strength
Elongation
Hardness Test

Positive Material Identification

PMI testing can be arranged to confirm the alloy grade and chemical composition.

Non-Destructive Testing

Depending on requirements:

Ultrasonic Testing (UT)
Radiographic Testing (RT)
Dye Penetrant Testing (DPT)
Visual Testing
Dimensional Inspection

Dimensional Inspection

Flanges can be inspected for:

Outside Diameter
Bore
Thickness
PCD
Number of Holes
Hole Diameter
Bolt Hole Position
Face Finish
Raised Face Dimensions
RTJ Groove Dimensions
Hub Dimensions
Overall Dimensions

Surface Inspection

Surface examination can be performed to identify:

Cracks
Pitting
Surface defects
Machining defects
Damage

Third-Party Inspection

Third-party inspection can be arranged through customer-approved inspection agencies according to project requirements.

Inconel 625 Flange Documentation

Depending on customer and project requirements, documentation can include:

Mill Test Certificate (MTC)
EN 10204 3.1 Certificate
EN 10204 3.2 Certificate
Chemical Analysis Report
Mechanical Test Report
PMI Report
Heat Treatment Certificate
Dimensional Inspection Report
NDT Reports
Certificate of Conformity
Third-Party Inspection Report
Material Traceability Documentation

Why Choose Vivid Steel & Engineering Co. Ltd.?

Inconel 625 Flanges Supplier & Exporter

Vivid Steel & Engineering Co. Ltd. offers Inconel 625 Weld Neck, Slip-On, Blind, Socket Weld, Threaded, Lap Joint, Orifice, Spectacle Blind, Long Weld Neck and Custom Flanges for demanding industrial applications.

Worldwide Exporter

We export Inconel 625 Flanges to countries all over the world, serving customers across:

Our global supply capabilities support EPC contractors, OEMs, engineering companies, distributors, fabricators, stockists and industrial end users.

Wide Range of Nickel Alloy Flanges

In addition to Inconel 625, we deal in flanges manufactured from:

Inconel 600
Inconel 601
Inconel 625
Inconel 718
Incoloy 800
Incoloy 800H
Incoloy 800HT
Incoloy 825
Monel 400
Monel K500
Hastelloy C22
Hastelloy C276
Nickel 200
Nickel 201
Duplex Stainless Steel
Super Duplex Stainless Steel
Stainless Steel
Carbon Steel
Alloy Steel
Mild Steel

Custom Flange Manufacturing

We can arrange custom flanges according to:

Customer drawings
OD / ID
Thickness
PCD
Bolt-hole arrangement
Number of holes
Bore
Pressure class
Facing
Special drilling
Custom dimensions

Material Traceability

Materials can be supplied with heat-number traceability and Mill Test Certificates to support project quality requirements.

Inspection & Quality Assurance

We can coordinate PMI, chemical analysis, mechanical testing, NDT, dimensional inspection and third-party inspection according to customer requirements.

Export Packing & Documentation

For international orders, export packing and documentation can be coordinated according to destination, shipping method and customer requirements.

Inconel 625 Flange Equivalent Grades

Designation	Equivalent
UNS	N06625
Werkstoff No.	2.4856
EN	NiCr22Mo9Nb
Alloy	Inconel 625
Nickel Alloy	Alloy 625

Equivalent grades should be confirmed against the applicable material standard and Mill Test Certificate.

Frequently Asked Questions – Inconel 625 Flanges

1. What are Inconel 625 Flanges?

Inconel 625 Flanges are nickel-alloy piping components manufactured from UNS N06625 and used to connect pipes, valves, equipment and other piping components in demanding environments.

2. What is the UNS number of Inconel 625 Flanges?

The UNS designation is N06625.

3. What is the ASTM specification for Inconel 625 Flanges?

ASTM B564 covers nickel alloy forgings, including applicable Inconel 625 flange forgings.

4. What is the ASME equivalent of ASTM B564?

The corresponding ASME material specification is generally ASME SB564.

5. What types of Inconel 625 Flanges does Vivid Steel supply?

We supply Weld Neck, Slip-On, Blind, Socket Weld, Threaded, Lap Joint, Orifice, Spectacle Blind, Long Weld Neck, Reducing and Custom Flanges.

6. Do you supply Inconel 625 Weld Neck Flanges?

Yes. We supply Inconel 625 Weld Neck Flanges in RF, FF and RTJ configurations, subject to applicable specifications.

7. Do you supply Inconel 625 Blind Flanges?

Yes. We supply Inconel 625 Blind Flanges in various sizes, pressure classes and facing configurations.

8. Can you supply custom Inconel 625 Flanges?

Yes. Custom flanges can be arranged according to customer drawings, dimensions, pressure class, drilling pattern, facing and technical specifications.

9. Can Inconel 625 Flanges be supplied with MTC?

Yes. Material can be supplied with Mill Test Certificates, heat-number traceability and applicable chemical and mechanical test reports.

10. Can PMI and third-party inspection be arranged?

Yes. PMI, NDT, dimensional inspection and third-party inspection can be arranged according to customer and project requirements.

11. Do you export Inconel 625 Flanges worldwide?

Yes. Vivid Steel & Engineering Co. Ltd. exports Inconel 625 Flanges worldwide, serving customers throughout Asia, Europe, the Middle East, Africa, North America, South America and other global markets.

12. What industries use Inconel 625 Flanges?

Major industries include Oil & Gas, Petrochemical, Chemical Processing, Marine, Offshore, Power Generation, Aerospace, Heat Exchangers and Heavy Engineering.

13. Can you supply special flange dimensions?

Yes. We can arrange special sizes, custom drilling, non-standard bore dimensions, special facings and custom-engineered Inconel 625 Flanges subject to technical feasibility.

Buy Inconel 625 Flanges from Vivid Steel & Engineering

Looking for a reliable Inconel 625 Flanges Supplier, Inconel 625 Weld Neck Flange Supplier, Inconel 625 Blind Flange Supplier or Inconel 625 Flange Exporter from India?

Vivid Steel & Engineering Co. Ltd. supplies Inconel 625 Flanges in standard and custom configurations, including Weld Neck, Slip-On, Blind, Socket Weld, Threaded, Lap Joint, Orifice, Spectacle Blind and Long Weld Neck Flanges.

We cater to India and worldwide export requirements, supporting EPC projects, OEMs, fabrication companies, distributors, maintenance contractors and industrial end users.

Send Your Requirement

Grade: Inconel 625 / UNS N06625
Flange Type: WN / SO / BL / SW / THD / LJ / Orifice / Custom
Specification: ASTM B564 / ASME SB564 or applicable standard
Dimension: NPS / DN / OD / Bore / Thickness
Pressure Class: 150 / 300 / 600 / 900 / 1500 / 2500
Facing: RF / FF / RTJ / Custom
Drilling: Standard / Custom
Inspection: MTC / PMI / NDT / Third-Party Inspection
Delivery: India / Worldwide Export

Contact Vivid Steel & Engineering Co. Ltd. for competitive pricing, availability and worldwide supply of Inconel 625 Flanges.