UNS N04400 Monel 400 Blind BLRF Flanges Manufacturer Stockist Exporter
UNS N04400 Monel 400 Blind BLRF Flanges Manufacturer, Stockist & Worldwide Exporter
Synergy Engineering Solution is a leading manufacturer, stockist, supplier and worldwide exporter of UNS N04400 Monel 400 Blind BLRF Flanges. We supply high-quality Monel 400 Blind Raised Face Flanges for demanding applications in oil and gas, petrochemical, chemical processing, refineries, marine engineering, desalination, power generation, water treatment and specialized industrial piping systems.
UNS N04400 is the Unified Numbering System designation for Monel 400, a nickel-copper alloy known for its excellent resistance to many corrosive environments. The alloy is particularly valued for applications involving seawater, brackish water, selected caustic solutions and various non-oxidizing chemical environments.
Our UNS N04400 Monel 400 Blind BLRF Flanges are manufactured and supplied according to customer requirements, applicable standards and project specifications. We support distributors, EPC contractors, engineering companies, fabricators, maintenance contractors and industrial end users in India and international markets.
UNS N04400 Monel 400 Blind BLRF Flanges are solid flange components manufactured from Monel 400 nickel-copper alloy. Unlike flanges such as Weld Neck, Slip-On or Socket Weld flanges, a Blind Flange has no central bore. Its primary function is to close the end of a piping system, equipment nozzle, vessel connection or branch connection.
BLRF stands for Blind Raised Face. The flange contains a raised face that provides the gasket seating surface when connected to a compatible mating flange. The flange is secured with suitable bolts and nuts, with the gasket compressed between the mating faces to create the required sealing arrangement.
Blind flanges can be used for permanent line closure, temporary isolation, pressure testing, maintenance access and future system expansion. The final application must always be evaluated according to the applicable piping code, design pressure, temperature and service conditions.
Types Of Flanges manufacturer
Synergy Engineering Solution offers these flanges in a wide range of sizes, pressure classes (150 to 2500), and custom specifications to meet diverse project requirements. Each flange is traceable to its material source, and clients are provided with complete documentation, including Mill Test Certificates (MTC), third-party inspection reports, and compliance certificates as needed.
UNS N04400 Monel 400 Blind BLRF Flanges supplied by Synergy Engineering Solution offer an unbeatable combination of strength, corrosion resistance, and long service life. With a proven export record across the Middle East, Europe, North America, and Africa, Synergy continues to deliver dependable flange solutions for the world's most demanding industries.
Specifications of UNS N04400 Monel 400 Blind BLRF Flanges
| Specification | Details |
|---|---|
| Product Name | UNS N04400 Monel 400 Blind BLRF Flanges |
| Material Grade | Monel 400 (UNS N04400) |
| Flange Type | Blind Flange with Raised Face (BLRF) |
| Standards | ASME B16.5, ASME B16.47, ASTM B564, ANSI, DIN, EN, BS |
| Size Range | ½” to 48” (DN15 to DN1200) |
| Pressure Rating | Class 150, 300, 600, 900, 1500, 2500 |
| Face Type | Raised Face (RF), Flat Face (FF), Ring Type Joint (RTJ) |
| Connection Type | Drilled Bolt Holes |
| Surface Finish | Smooth, Serrated, Spiral Serrated |
| Temperature Range | -29°C to 538°C (-20°F to 1000°F) |
| Corrosion Resistance | Excellent in seawater, hydrofluoric acid, and alkaline environments |
| Applications | Marine, Chemical Processing, Heat Exchangers, Oil & Gas, Power Generation |
| Manufacturing Origin | Manufactured by Synergy Engineering Solution |
| Export Markets | Oman, Qatar, Saudi Arabia, UAE, Kuwait, Spain, Germany, USA, Canada, Africa |
Chemical Properties of UNS N04400 Monel 400 Blind BLRF Flanges
| Element | Percentage (%) |
|---|---|
| Nickel (Ni) | 63.0 min (typically 63–70%) |
| Copper (Cu) | 28.0 – 34.0 |
| Iron (Fe) | ≤ 2.5 |
| Manganese (Mn) | ≤ 2.0 |
| Carbon (C) | ≤ 0.30 |
| Silicon (Si) | ≤ 0.50 |
| Sulfur (S) | ≤ 0.024 |
Mechanical properties of UNS N04400 Monel 400 Blind BLRF Flanges
| Property | Value |
|---|---|
| Tensile Strength | ≥ 550 MPa (80 ksi) |
| Yield Strength (0.2%) | ≥ 170 MPa (25 ksi) |
| Elongation (in 50 mm) | ≥ 35% |
| Hardness (Rockwell B) | ≤ 75 HRB |
| Modulus of Elasticity | 179 GPa (26 × 10⁶ psi) |
| Density | 8.80 g/cm³ |
| Melting Point | 1300 – 1350 °C (2370 – 2460 °F) |
| Poisson’s Ratio | 0.32 |
| Thermal Conductivity | 21.8 W/m·K at 25°C |
| Impact Strength | Excellent – good toughness at sub-zero temperatures |
Technical Advantages of UNS N04400 Monel 400 Blind BLRF Flanges
UNS N04400 Monel 400 Blind BLRF Flanges combine the corrosion-resistant characteristics of Monel 400 with the functional advantages of a Blind Raised Face flange. This makes them suitable for selected piping systems where reliable line closure, isolation and corrosion resistance are required.
Monel 400 is a nickel-copper alloy with a long history of use in marine, chemical, oil and gas and process industries. Its resistance to seawater, brackish water and selected chemical environments makes it an important engineering material for specialized flange applications.
- Excellent resistance to seawater and brackish water in suitable service conditions
- Good resistance to selected alkaline and caustic environments
- Useful resistance to hydrofluoric acid under appropriate conditions
- Good resistance to many non-oxidizing chemical environments
- Good mechanical strength
- Good ductility and toughness
- Good weldability where the applicable fabrication procedure permits it
- Suitable for marine and offshore applications
- Reliable solid closure for piping systems
- Raised Face configuration for gasket seating
Blind Flange vs Other Flange Types
The correct flange type depends on the piping configuration, installation method, pressure requirements and maintenance strategy. A Blind Flange differs from Weld Neck, Slip-On, Socket Weld, Threaded and Lap Joint flanges because it does not provide a passage through the flange.
| Flange Type | Main Feature | Typical Function |
|---|---|---|
| Blind BLRF | Solid flange with Raised Face | Closing or isolating piping and equipment connections |
| Weld Neck WNRF | Long tapered hub with butt-weld connection | High-integrity welded piping connections |
| Slip-On SORF | Slides over pipe before welding | General piping connections |
| Socket Weld SWRF | Pipe enters socket and is fillet welded | Smaller-diameter piping systems |
| Threaded | Internal threads | Threaded piping without welding |
| Lap Joint | Used with stub end | Systems requiring frequent dismantling |
Raised Face Design of Monel 400 Blind Flanges
The Raised Face is one of the most important features of a BLRF flange. The raised surface concentrates the gasket sealing load over a defined area. This can help establish the required gasket compression when the flange is correctly installed with compatible bolting and a suitable gasket.
The raised-face dimensions must conform to the applicable flange standard or approved project drawing. Surface condition, flatness and dimensional accuracy are important factors in achieving a reliable flange joint.
Gasket Selection for UNS N04400 BLRF Flanges
Gasket selection should be based on the process fluid, temperature, pressure, flange facing, chemical compatibility and applicable piping standard. A Monel 400 flange does not automatically require a Monel gasket; the gasket and bolting materials should be selected as part of the complete flange-joint design.
Depending on the application, customers may specify spiral wound, metal-jacketed, graphite, PTFE or other gasket systems. The final gasket selection should be confirmed by the responsible engineer or according to the project specification.
Bolting Requirements
Correct bolting is essential for maintaining gasket compression and flange-joint integrity. Bolting material should be compatible with the operating temperature, process environment and applicable flange specification.
During installation, bolts should be tightened using an approved sequence and torque or tensioning procedure. Uneven bolt loading can affect gasket compression and may lead to leakage or flange distortion.
Monel 400 Blind Flanges for Seawater Systems
One of the important application areas for Monel 400 is marine and seawater service. The alloy offers strong resistance to seawater and brackish water in many conditions, making it useful for selected marine piping, desalination and offshore systems.
UNS N04400 Monel 400 Blind BLRF Flanges can be used for suitable seawater piping isolation points, equipment connections, branch closures and maintenance arrangements.
However, the actual service environment should always be reviewed. Factors such as water chemistry, velocity, temperature, deposits and stagnant conditions can influence corrosion performance.
Monel 400 for Caustic and Alkaline Service
Monel 400 is known for its resistance to many alkaline and caustic solutions. This characteristic makes it relevant to selected chemical processing and industrial systems handling caustic media.
The suitability of the alloy depends on the exact concentration, temperature and operating conditions. Customers should provide complete process information when requesting material recommendations.
Monel 400 Blind Flanges in Oil & Gas Projects
Oil and gas projects frequently use blind flanges to isolate equipment, terminate piping, facilitate maintenance and provide future expansion points. Where the process environment requires a nickel-copper alloy, Monel 400 can be considered for appropriate applications.
Synergy Engineering Solution supports procurement requirements for UNS N04400 Monel 400 Blind BLRF Flanges used in refineries, petrochemical facilities, offshore installations, process plants and associated piping systems.
Monel 400 Flanges for Petrochemical Plants
Petrochemical plants contain a variety of process fluids and operating conditions. The selection of flange material must therefore be based on chemical compatibility, pressure, temperature and mechanical requirements.
Where Monel 400 is approved for the specific process environment, Blind BLRF Flanges can provide a corrosion-resistant solution for closing and isolating piping connections.
Monel 400 Blind Flanges for Desalination Plants
Desalination facilities handle seawater, concentrated brine and treated water. Corrosion resistance is a key consideration in equipment and piping material selection.
Monel 400 can be considered for selected seawater and brine applications, making UNS N04400 Blind BLRF Flanges relevant to appropriate desalination piping and equipment connections.
Manufacturing Quality of Monel 400 BLRF Flanges
Synergy Engineering Solution emphasizes material identification, dimensional accuracy and documentation when supplying nickel alloy flanges. Each order can be reviewed against the customer's technical specification before production or sourcing.
- Material grade verification
- Heat number traceability
- Chemical composition verification
- Dimensional accuracy
- Flange thickness verification
- Bolt-hole measurement
- Bolt-circle inspection
- Outside-diameter inspection
- Raised-face inspection
- Visual examination
- Marking verification
- Final inspection
Material Testing and Certification
For industrial projects, material documentation is often an important part of procurement. Depending on the purchase order, Synergy Engineering Solution can support material certificates and inspection documentation.
Typical documentation may include a Mill Test Certificate containing the material grade, heat number, chemical composition and mechanical test results as applicable. EN 10204 3.1 certification can be supplied when specifically required.
- Mill Test Certificate
- Chemical analysis report
- Mechanical test report
- Heat treatment records where applicable
- Dimensional inspection report
- PMI report where required
- Non-destructive testing report where specified
- EN 10204 3.1 certificate
- Third-party inspection report where required
- Certificate of Conformity
Positive Material Identification (PMI)
Positive Material Identification can be arranged where specified by the customer. PMI helps verify the alloy chemistry and can provide an additional quality-control measure for nickel alloy products.
PMI requirements should be stated before order confirmation so that the inspection procedure and documentation can be aligned with the project specification.
Dimensional Inspection
Dimensional inspection ensures that the finished Blind BLRF Flange conforms to the applicable standard or approved drawing. Important dimensions include outside diameter, flange thickness, bolt-hole diameter, number of holes, bolt-circle diameter and raised-face dimensions.
For customized products, dimensional requirements are verified against the customer's drawings and technical specifications.
Customized UNS N04400 Monel 400 Blind BLRF Flanges
In addition to standard flange requirements, Synergy Engineering Solution can review customized requirements based on customer drawings and project specifications. Customized requirements may include special dimensions, drilling patterns, facing requirements, marking or inspection documentation.
Customers requiring customized Monel 400 Blind Flanges should provide a detailed drawing containing all critical dimensions. Our technical team can review the requirement before quotation.
Packaging of Monel 400 Blind BLRF Flanges
Proper packaging helps protect machined flange surfaces during transportation and storage. Export shipments require particular attention to handling, moisture protection and mechanical protection.
- Protective covering for machined surfaces
- Suitable wrapping
- Moisture protection where required
- Secure packing for international transportation
- Wooden cases or pallets where specified
- Identification and marking
- Quantity and package documentation
Worldwide Supply of UNS N04400 Monel 400 Blind BLRF Flanges
Synergy Engineering Solution provides worldwide export support for industrial buyers requiring UNS N04400 Monel 400 Blind BLRF Flanges. Our export-oriented service supports distributors, EPC contractors, project procurement teams, engineering companies and end users.
Our major export focus is the Middle East, where specialized corrosion-resistant materials are used in oil and gas, refinery, petrochemical, marine, desalination and industrial projects.
Middle East Export Markets
- United Arab Emirates: Monel 400 Blind BLRF Flanges for industrial and EPC projects
- Saudi Arabia: UNS N04400 Blind Flanges for oil, gas, refinery and petrochemical applications
- Qatar: Monel 400 BLRF Flanges for industrial piping requirements
- Oman: Nickel Alloy 400 Blind Flanges for marine, oil and gas and industrial applications
- Kuwait: Monel 400 Raised Face Blind Flanges for refinery and petrochemical projects
- Bahrain: UNS N04400 Blind Flanges for industrial piping and process applications
Why Choose Synergy Engineering Solution?
Synergy Engineering Solution combines product expertise, sourcing capability and export support to serve customers requiring specialized nickel alloy flange products.
- Leading manufacturer, stockist and exporter
- Specialized nickel alloy product range
- UNS N04400 Monel 400 expertise
- Worldwide export support
- Strong Middle East and GCC focus
- Technical quotation assistance
- Project-specific requirements support
- Inspection and certification coordination
- Material traceability support
- Export packaging support
- Competitive commercial solutions
- Responsive customer service
How to Order UNS N04400 Monel 400 Blind BLRF Flanges
To receive an accurate quotation, customers should send complete technical information. Providing the correct requirements at the beginning helps avoid dimensional or specification discrepancies.
- Product: UNS N04400 Monel 400 Blind BLRF Flanges
- Nominal Size
- Pressure Class
- Quantity
- Applicable Standard
- Material Specification
- Facing Type
- Drawing, if customized
- Inspection Requirements
- Material Certificate Requirements
- Delivery Location
- Required Delivery Schedule
Contact Synergy Engineering Solution
For competitive quotations and technical inquiries regarding UNS N04400 Monel 400 Blind BLRF Flanges, contact Synergy Engineering Solution.
Frequently Asked Questions About UNS N04400 Monel 400 Blind BLRF Flanges
1. What are UNS N04400 Monel 400 Blind BLRF Flanges?
UNS N04400 Monel 400 Blind BLRF Flanges are solid nickel-copper alloy flanges used to close or isolate piping, equipment nozzles and process connections. BLRF means Blind Raised Face, indicating that the flange has no central bore and incorporates a raised gasket seating face.
2. What is the material designation of Monel 400?
Monel 400 is identified by the Unified Numbering System designation UNS N04400. It is also commonly called Alloy 400, Nickel Alloy 400 and Werkstoff 2.4360. Monel 400 is a nickel-copper solid-solution alloy. :contentReference[oaicite:0]{index=0}
3. What does BLRF stand for?
BLRF stands for Blind Raised Face. “Blind” indicates that there is no through-bore, while “Raised Face” refers to the raised gasket seating surface machined on the flange.
4. Why are Monel 400 Blind Flanges used?
Monel 400 Blind Flanges are used where a piping line, equipment nozzle or branch connection needs to be closed or isolated. The material is selected for applications where its corrosion resistance and mechanical properties are appropriate for the operating environment.
5. What are the main properties of Monel 400?
Monel 400 provides good mechanical strength, toughness and corrosion resistance across a range of marine, chemical, alkaline and non-oxidizing environments. It is particularly recognized for resistance to seawater, brackish water, selected hydrofluoric acid environments and caustic solutions. :contentReference[oaicite:1]{index=1}
6. What is the chemical composition of UNS N04400?
Typical specification limits include nickel plus cobalt of 63.0–70.0%, copper of 28.0–34.0%, iron up to 2.5%, manganese up to 2.0%, carbon up to 0.30%, silicon up to 0.50% and sulfur up to 0.024%, depending on the applicable specification. :contentReference[oaicite:2]{index=2}
7. Which standards are commonly used for Monel 400 Blind Flanges?
For forged nickel alloy flanges, ASTM B564 / ASME SB564 are commonly referenced for the material, while ASME B16.5 is commonly used for applicable standard flange dimensions and pressure classes. The exact standards should always be confirmed from the project specification. :contentReference[oaicite:3]{index=3}
8. Which pressure classes are available for UNS N04400 Blind BLRF Flanges?
Common ASME flange classes include Class 150, 300, 600, 900, 1500 and 2500, subject to the applicable flange standard, nominal size and pressure-temperature rating. :contentReference[oaicite:4]{index=4}
9. What sizes are available?
Sizes depend on the applicable dimensional standard and project requirement. Standard ASME B16.5 flanges cover applicable nominal pipe sizes, while larger-diameter requirements may be addressed through other applicable standards or project-specific designs.
10. Are Monel 400 Blind Flanges suitable for seawater?
Monel 400 is well known for resistance to seawater and brackish water in suitable conditions. It is used in selected marine and seawater applications, although actual water chemistry, temperature, velocity and stagnant conditions should be evaluated before final material selection. :contentReference[oaicite:5]{index=5}
11. Are UNS N04400 Blind Flanges suitable for chemical processing?
They can be suitable for selected chemical-processing environments. Monel 400 has useful resistance to several non-oxidizing chemical environments, caustic solutions and selected hydrofluoric acid services. The exact process concentration and temperature should be reviewed before specifying the material. :contentReference[oaicite:6]{index=6}
12. Can Monel 400 BLRF Flanges be supplied with material certificates?
Yes. Material certification can be supplied according to the purchase order and project requirements. Customers can specify requirements such as EN 10204 3.1 certification, inspection reports, PMI and third-party inspection where applicable.
13. Is PMI testing available for Monel 400 Blind Flanges?
Positive Material Identification (PMI) can be arranged when required by the customer or project specification. PMI helps verify the alloy identification during quality inspection.
14. Can customized UNS N04400 Blind BLRF Flanges be supplied?
Project-specific requirements can be reviewed based on customer drawings and technical specifications. Customized dimensions, drilling patterns, facing requirements and inspection documentation can be discussed before order confirmation.
15. What industries use Monel 400 Blind BLRF Flanges?
Potential applications include oil and gas, refineries, petrochemical plants, chemical processing, marine engineering, offshore systems, desalination, seawater handling, power generation, water treatment and specialized process piping.
16. Does Synergy Engineering Solution export Monel 400 Blind BLRF Flanges worldwide?
Yes. Synergy Engineering Solution is a manufacturer, stockist and worldwide exporter supporting international industrial procurement requirements, with a particular focus on the Middle East and GCC markets.
17. Does Synergy Engineering Solution supply Monel 400 Flanges to the UAE?
Yes. We support inquiries from UAE-based EPC contractors, distributors, engineering companies and industrial buyers requiring UNS N04400 Monel 400 Blind BLRF Flanges according to their technical and commercial requirements.
18. Can you export Monel 400 Blind Flanges to Saudi Arabia?
Yes. Synergy Engineering Solution supports export inquiries from Saudi Arabia for suitable oil and gas, refinery, petrochemical and industrial applications.
19. Do you supply Monel 400 BLRF Flanges to Qatar, Oman and Kuwait?
Yes. We support international inquiries from Qatar, Oman, Kuwait, Bahrain and other Middle East markets. Customers should provide size, pressure class, quantity, applicable standard and delivery location for quotation.
20. What information is required to obtain a quotation?
Customers should provide the nominal size, quantity, pressure class, material specification, applicable standard, facing, inspection requirements, certification requirements and delivery destination. Drawings should be supplied for customized flange requirements.
21. How can I contact Synergy Engineering Solution?
You can contact Synergy Engineering Solution at +91 83699 01616 or sales@synergytubes.com. Our office address is 84/86, 7th Khetwadi Back Road, Mashalawala Building, Gr. Floor Room No. 4, Mumbai-400004, India.
Why Choose Synergy Engineering Solution?
- Leading manufacturer, stockist and worldwide exporter
- Specialized nickel alloy product sourcing
- UNS N04400 Monel 400 product expertise
- Blind BLRF flange supply capability
- Strong Middle East and GCC export focus
- Technical specification assistance
- Material traceability support
- Inspection and certification coordination
- Project-specific requirement support
- Export-quality packaging
- Worldwide shipment coordination
- Competitive quotations
Request a Quote for UNS N04400 Monel 400 Blind BLRF Flanges
If you are looking for a reliable UNS N04400 Monel 400 Blind BLRF Flanges manufacturer, stockist, supplier or worldwide exporter, contact Synergy Engineering Solution with your required specifications.
Synergy Engineering Solution
84/86, 7th Khetwadi Back Road, Mashalawala Building,
Gr. Floor Room No. 4, Mumbai-400004, India
Phone: +91 83699 01616
Email: sales@synergytubes.com
Website: https://synergytubes.com