UNS N05500, commonly known as Monel® K-500 (or Alloy K-500), is a precipitation strengthened nickel-copper alloy developed from Monel 400, but enhanced with aluminum and titanium additions which enable heat treatment to higher strength levels while retaining good corrosion resistance. When fabricated into Socket Weld SWRF (spigot weld / raised face) flanges, Monel K-500 offers a compelling combination of enhanced mechanical strength, fatigue resistance, and corrosion durability — ideal for aggressive environments where higher stress or cyclic loading is expected.
At Synergy Engineering Solution, we manufacture, stock, and export Monel K-500 socket weld SWRF flanges to global markets. Our process begins with certified K-500 ingots or bars, followed by forging (if required), solution annealing, precipitation aging, precision machining, finishing, and rigorous inspection. We maintain full traceability and provide mill test certificates (MTCs). Upon request, we deliver additional quality assurance such as PMI (positive material inspection), nondestructive testing (PT, UT) and third-party inspection to suit critical applications.
Because socket weld joints demand tight tolerances and dependable fit-up, our machining capability ensures that socket bores, spigot depths, raised faces and bolt hole patterns are precisely held. The SWRF (raised face) profile ensures better gasket sealing, while the socket weld joint reduces stress concentration at the weld root. These properties make the flanges especially suitable in systems with vibration, variable loads, or thermal cycling — such as subsea, oil & gas, marine, or high-performance chemical plants.
To bridge project schedules, we keep inventory of commonly used sizes and pressure classes of Monel K-500 socket weld SWRF flanges, enabling faster response times for many orders. For special or custom requirements (nonstandard diameters, customized bore, wall thickness, special finishes), we accept bespoke orders with detailed customer specifications and inspection criteria. In all cases, our packing and export practices are optimized for long-distance transport: internal corrosion protection wrapping, robust wooden crates or pallets, proper identification with heat numbers / part numbers, and complete documentation for customs clearance.
Synergy Engineering Solution exports Monel K-500 socket weld SWRF flanges across major regions — including the Gulf (Oman, Qatar, Saudi Arabia, UAE, Kuwait), Europe (Spain, Germany), North America (USA, Canada), and Africa. We handle all logistics, export paperwork, and coordination to ensure seamless delivery to projects—whether offshore installations in UAE, refineries in Saudi Arabia, chemical plants in Germany, or industrial facilities in Africa. If you’d like, I can also prepare a technical datasheet (with chemical composition, mechanical properties, dimensional drawings etc.) specifically for Monel K-500 socket weld SWRF flanges
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.
| Material | UNS N05500 / Monel® K500 |
|---|---|
| Standards | ASTM B865, ASTM B564 / ASME SB564 |
| Flange Type | Socket Weld (SW) / Raised Face (SWRF) |
| Size Range | ½" to 48" (custom sizes on request) |
| Pressure Class | 150# to 2500#, PN6 to PN64 |
| Facing Type | Raised Face (RF) |
| End Connection | Socket Weld |
| Certification | MTC (EN 10204 3.1), Third-Party Inspection Reports |
| Element | Content |
|---|---|
| Nickel (Ni) | 63.0 min |
| Copper (Cu) | 27.0 – 33.0 |
| Aluminum (Al) | 2.3 – 3.15 |
| Titanium (Ti) | 0.35 – 0.85 |
| Iron (Fe) | 2.0 max |
| Manganese (Mn) | 1.5 max |
| Silicon (Si) | 0.5 max |
| Carbon (C) | 0.25 max |
| Sulfur (S) | 0.01 max |
| Property | Value |
|---|---|
| Tensile Strength (Rm) | 965 MPa (140,000 psi) |
| Yield Strength (0.2% offset) | 655 MPa (95,000 psi) |
| Elongation | ≥ 20% |
| Hardness | 230 HB (approx.) |
| Density | 8.44 g/cm³ |
| Melting Range | 1315 – 1350°C (2400 – 2460°F) |
| Standard | Equivalent Grade |
|---|---|
| UNS | N05500 |
| Werkstoff | 2.4375 |
| EN | NiCu30Al |
| JIS | NW 5500 |
| BS | NA 18 |
Monel K500 has higher strength and hardness due to aluminum and titanium precipitation hardening, while retaining similar corrosion resistance to Monel 400.
Yes, Monel K500 is widely used in marine, offshore, and subsea equipment because of its excellent resistance to seawater, brine, and high-stress conditions.
Yes, we offer customized bore sizes, thicknesses, drilling, and face finishes as per client drawings or specifications.
We provide EN 10204 3.1 Mill Test Certificates along with third-party inspection reports if required.
We export worldwide including Oman, Qatar, Saudi Arabia, UAE, Kuwait, Spain, Germany, USA, Canada, and African regions with complete export packaging and documentation.
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.
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.

