UNS N04400 Monel 400 Socket Weld Swrf Flanges Manufacturer Stockist Exporter
We are manufacturers, stockist and exporters of UNS N04400 Monel 400 Socket Weld Swrf Flanges in Mumbai.
UNS N04400, more commonly known as Monel® 400 (also called Alloy 400), is a nickel-copper solid-solution alloy prized for its excellent corrosion resistance, good mechanical strength, and durability across a wide temperature range. When fabricated into Socket Weld SWRF (spigot weld / raised face) flanges, Monel 400 brings its corrosion resilience into compact, reliable flanged piping systems. These flanges are particularly suitable for chemical, marine, petrochemical, heat exchanger, and desalination systems, where resistance to seawater, chlorides, reducing acids, and high flow corrosion is essential.
At Synergy Engineering Solution, we manufacture, stock and export Monel 400 socket weld SWRF flanges under strict quality controls. From certified Monel 400 forgings or bar stock, we carry out forging (if needed), solution annealing, CNC machining, and finishing. Every flange is traceable via a mill test certificate (MTC) and, when required, we provide additional inspection services—such as PMI, dye penetrant (PT), ultrasonic testing (UT), or third-party certification. Our machining ensures precise socket bores, spigot depths and raised faces to support reliable weld fit-up and sealing.
Socket weld flanges demand tight tolerances, since the spigot must insert snugly and the fillet weld must be properly formed. Our shop uses modern CNC equipment to ensure concentricity, bore alignment, face flatness, and chamfer control. The SWRF (raised face) design improves gasket seating and sealing in bolted joints, while the socket weld geometry reduces stress intensification at the weld root, making the assembly more tolerant to thermal cycling and mechanical vibration common in service.
We maintain inventory of commonly used sizes and pressure classes of Monel 400 socket weld SWRF flanges to reduce lead times, and simultaneously accept bespoke or engineered-to-order dimensions (e.g. special bore, thickness, wall profiles or flange drilling patterns). When shipping overseas, our packing is geared for protection against corrosion and handling damage—each flange is wrapped with corrosion preventive, secured within sturdy wooden crates or pallets, and clearly labeled with heat number, size, quantity, and part identification.
Types Of Flanges manufacturer
Our export network spans the Gulf region (Oman, Qatar, Saudi Arabia, UAE, Kuwait), Europe (Spain, Germany), North America (USA, Canada), Africa and numerous other international markets. We manage export documentation, customs formalities and logistics so flanges arrive ready for site use. If you’d like a formal datasheet, dimensional drawings, or a quotation for specific sizes and classes of Monel 400 socket weld SWRF flanges, drop us your specifications (size, class, finish, quantity, destination) and we’ll respond with certified supply options, lead time and pricing.
we can follow up with a technical datasheet (chemical & mechanical tables, dimensional drawings, MTC examples) and a tailored quotation. Send the sizes, ANSI class (or PN rating), quantity and destination — and we’ll return availability, certified test documentation and a delivered-price proposal for your review.
UNS N04400 Monel 400 Socket Weld Swrf Flanges
1) Specification
| Material | UNS N04400 / Monel® 400 |
|---|---|
| Standards | ASTM B564 / ASME SB564, ANSI B16.5 / B16.47 |
| Flange Type | Socket Weld (SW) / Raised Face (SWRF) |
| Size Range | ½" to 48" (custom sizes available) |
| Pressure Class | 150# to 2500#, PN6 to PN64 |
| Facing Type | Raised Face (RF) |
| End Connection | Socket Weld |
| Certification | Mill Test Certificates, Third-Party Inspection Reports |
2) Chemical Composition (% by weight)
| Element | Content |
|---|---|
| Nickel (Ni) | 63.0 – 70.0 |
| Copper (Cu) | 28.0 – 34.0 |
| Iron (Fe) | 2.5 max |
| Manganese (Mn) | 2.0 max |
| Silicon (Si) | 0.5 max |
| Sulfur (S) | 0.024 max |
| Carbon (C) | 0.3 max |
3) Mechanical Properties
| Property | Value |
|---|---|
| Tensile Strength (Rm) | 550 MPa (80,000 psi) |
| Yield Strength (0.2% offset) | 240 MPa (35,000 psi) |
| Elongation | ≥ 35% |
| Hardness | HRB 65 (max) |
| Density | 8.8 g/cm³ |
| Melting Range | 1300 – 1350°C (2370 – 2460°F) |
4) Equivalent Grades
| Standard | Equivalent Grade |
|---|---|
| UNS | N04400 |
| Werkstoff | 2.4360 / 2.4361 |
| BS | NA 13 |
| EN | NiCu30Fe |
| JIS | NW 4400 |
Frequently Asked Questions (FAQ)
Q: What are the main advantages of Monel® 400 flanges?
Monel 400 flanges offer outstanding resistance to seawater, brine, and acidic environments, making them ideal for marine, chemical, and desalination applications.
Q: Can Synergy Engineering provide custom sizes?
Yes, custom bore, wall thickness, drilling, and face finish options are available to match project specifications.
Q: Are Monel 400 SWRF flanges suitable for high temperature service?
Yes, Monel 400 can be used up to about 550°C (1020°F) without significant loss of mechanical properties.
Q: What testing and certification are provided?
We supply MTC as per EN 10204 3.1, and third-party inspection can be arranged on request.
Q: Which markets does Synergy Engineering export to?
We export globally including Oman, Qatar, Saudi Arabia, UAE, Kuwait, Spain, Germany, USA, Canada, Africa, and more.
In order to alter the physical and mechanical characteristics of metal without altering its original shape and size, we offer a variety of heat treatment services, including hydrogen heat treatment, HIC testing, blasting and painting, cutting, arc welding, epoxy cutting, PMI testing, hydro testing, NACE testing, and SSC testing. Although heat treatment is frequently linked to a metal's increased strength, it can also be used to change specific manufacturability goals, such enhancing machinability, formability, ductility, etc. The metal and heavy manufacturing sectors use our services. Customers have expressed great pleasure with our services' precision, efficacy, cost, and prompt delivery.
Flanges Testing Methods
Flanges Applications
We supply Pipes Worldwide.
Exporting Steel Pipes & Tubes to over 60 countries including Afghanistan, Albania, Andorra, Angloa, Austria, Australia, Bahrain, Bangladesh, Bhutan, Brazil, Brunei, Belarus, Belgium, Bulgaria, Cambodia, China, Cyprus, Croatia, Czech Republic, Canada, Denmark, Estonia, Egypt, Finland, France, Germany, Greece, Georgia, Hungary, Iceland, Ireland, Italy, Indonesia, Iran, Iraq, Israel, Japan, Jordan, Kazakhstan, Kuwait, Kyrgyzstan, Lebanon, Latvia, Latin America, Liechtenstein, Lithuania, Luxembourg, Malta, Madagascar, Mexico, Moldova, Monaco, Malaysia, Maldives, Mongolia, Myanmar (Burma), Nepal, New Zealand, North Korea, Netherlands, Norway, Nigeria, Oman, Poland, Portugal, Pakistan, Palestine, Philippines, Qatar, Russia, Romania, Russia, San Marino, Serbia and Montenegro, Slovakia, Slovenia, Spain, Sweden, Switzerland, Saudi Arabia, Singapore, South Korea, South Africa, Sri Lanka, Sudan, Syria, Taiwan, Tanzania, Tajikistan, Thailand, Turkey, Turkmenistan, Ukraine, United Kingdom, United Arab Emirates (UAE), Uzbekistan, Venezuela, Vietnam, Yemen, etc.