Nguyen Fittings and Plates, based in Da Nang, Vietnam, is a reliable manufacturer and supplier of Monel K500 Pipe Fittings, designed for extreme corrosion resistance and high mechanical strength. Produced in compliance with ASTM B366 and ASME B16.9 standards, these fittings include elbows, tees, reducers, and caps—engineered for high-pressure and marine applications. Monel K500 combines the outstanding corrosion resistance of Monel 400 with greater strength and hardness, thanks to age-hardening. Nguyen ensures each fitting is precisely machined, heat-treated, and quality-checked, making them ideal for offshore, chemical, and oil & gas industries.
Specifications ASTM B366 / ASME SB366
Dimensions ASME/ANSI B16.9, ASME B16.28, MSS-SP-43, MSS SP-79
Size Seamless 1/2″ – 10″ , Welded 1/2″ – 48″
Type (Seamless & 100% X-Ray Welded, Fabricated)
Bending Radius R=1D, 2D, 3D, 5D, 6D, 8D, 10D or Custom
Thickness Sch 5s, Sch 10s, Sch 40s, Sch 80s, Sch 160s, Sch XXS
Grade Monel K500 Pipe Fittings UNS (N05500), DIN (2.4375)
Monel K500 is a nickel-copper alloy containing approximately 63% nickel, 30% copper, and small amounts of aluminum and titanium for precipitation hardening. This composition results in tensile strength up to 965 MPa and yield strength of 690 MPa, significantly higher than Monel 400. The alloy retains excellent corrosion resistance in seawater, acidic, and alkaline environments, and is also non-magnetic. It offers superb resistance to stress-corrosion cracking and erosion, especially in fast-flowing seawater and sour gas conditions, making it highly durable and reliable in aggressive environments.
| Grade | C | Mn | Si | S | Cu | Fe | Ni |
| Monel K500 | 0.25 max | 1.5 max | 0.5 max | 0.010 max | 27.00 – 33.00 | 0.5 – 2 | 63.00 min |
| Density | Melting Point | Yield Strength (0.2%Offset) | Tensile Strength | Elongation |
| 8.44 g/cm3 | 1350 °C (2460 °F) | Psi – 115000 , MPa – 790 | Psi – 160000 , MPa – 1100 | 20 % |
Nguyen Fittings is a leading supplier of Monel K500 pipe fittings in Da Nang, Vietnam. We offer an extensive range of Monel K500 fittings, renowned for their excellent corrosion resistance and high strength, which makes them perfect for demanding industrial applications like chemical processing, marine environments, and high-temperature systems. With a commitment to quality and reliable delivery, we ensure our clients receive top-tier products tailored to meet the specific needs of various industries.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
| STANDARD | WERKSTOFF NR. | UNS | JIS | BS | GOST | AFNOR | EN |
| Monel K500 | 2.4375 | N05500 | – | – | – | – | – |
Monel K500 pipe fittings from Nguyen Fittings offer exceptional corrosion resistance, especially in seawater and harsh environments. They are known for their high strength, durability, and resistance to pitting and crevice corrosion, ensuring long-lasting performance. We provide precise manufacturing, quality control, and reliable service for diverse industrial applications.
| NPS (Normal Pipe Size) | O.D. (Outside Daimeter) | Elbow 90 Deg | Elbow 45 Deg | Return Elbow 180 Deg | ||||
|---|---|---|---|---|---|---|---|---|
| (inch) | Long Radius Elbow | Short Radius | Long Radius Elbow | Long Radius Elbow | ||||
| (millimeter/ MM) | (inch./ Inches) | Center to Face (Inches) | Center to Face (Inches) | Center to Face (Inches) | Radius (Inches) | Center to Center (Inches) | Back to face (Inches) | |
| 1/2 | 21.3 | 0.840 | 1 1/2 | – | 5/8 | 2 | 1 7/8 | |
| 3/4 | 26.7 | 1.050 | 1 1/8 | – | 7/16 | 2 1/4 | 1 11/16 | |
| 1 | 33.4 | 1.315 | 1 1/2 | 1 | 7/8 | 3 | 2 3/16 | |
| 1 1/4 | 42.2 | 1.660 | 1 7/8 | 1 1/4 | 1 | 3 3/4 | 2 3/4 | |
| 1 1/2 | 48.3 | 1.900 | 2 1/4 | 1 1/2 | 1 1/8 | 3 | 4 1/2 | 3 1/4 |
| 2 | 60.3 | 2.375 | 3 | 2 | 1 3/8 | 4 | 6 | 4 3/16 |
| 2 1/2 | 73.0 | 2.875 | 3 3/4 | 2 1/2 | 1 3/4 | 5 | 7 1/2 | 5 3/16 |
| 3 | 88.9 | 3.500 | 4 1/2 | 3 | 2 | 6 | 9 | 6 1/4 |
| 3 1/2 | 101.6 | 4.000 | 5 1/4 | 3 1/2 | 2 1/4 | 7 | 10 1/2 | 7 1/4 |
| 4 | 114.3 | 4.500 | 6 | 4 | 2 1/2 | 8 | 12 | 8 1/4 |
| 5 | 141.3 | 5.563 | 7 1/2 | 5 | 3 1/8 | 10 | 15 | 10 5/16 |
| 6 | 168.3 | 6.625 | 9 | 6 | 3 3/4 | 12 | 18 | 12 5/16 |
| 8 | 219.1 | 8.625 | 12 | 8 | 5 | 12 | 24 | 16 5/16 |
| 10 | 273.1 | 10.750 | 15 | 10 | 6 1/4 | 15 | 30 | 20 3/8 |
| 12 | 323.9 | 12.750 | 18 | 12 | 7 1/2 | 18 | 36 | 24 3/8 |
Monel K500 Pipe Fittings offer exceptional advantages, including superior corrosion resistance, making them ideal for marine and chemical industries. They combine high strength and toughness with excellent resistance to stress corrosion cracking and erosion in harsh environments. Their non-magnetic properties and outstanding thermal conductivity make them versatile for diverse applications. Monel K500 fittings maintain mechanical properties even at sub-zero and elevated temperatures, ensuring durability and reliability. Additionally, their ease of machining and fabrication allows for custom designs, meeting various industrial needs with long-term performance and low maintenance requirements.
| O.D. or I.D. Diameter | Equivalent Decimal | Nominal Diameter | Typical Threads In Inch |
| 5/16 | 0.313 | 1/16 | 27 |
| 13/32 | 0.405 | 1/8 | 27 |
| 35/64 | 0.540 | 1/4 | 18 |
| 43/64 | 0.675 | 3/8 | 18 |
| 27/32 | 0.840 | 1/2 | 14 |
| 1-3/64 | 1.050 | 3/4 | 14 |
| 1-5/16 | 1.315 | 1 | 11-1/2 |
| 1-21/32 | 1.660 | 1-1/4 | 11-1/2 |
| 1-29/32 | 1.900 | 1-1/2 | 11-1/2 |
| 2-3/8 | 2.375 | 2 | 11-1/2 |
| 2-7/8 | 2.875 | 2-1/2 | 8 |
| 3-1/2 | 3.500 | 3 | 8 |
| 4 | 4.000 | 3-1/2 | 8 |
| 4-1/2 | 4.500 | 4 | 8 |
Yes, custom sizes for Monel K500 pipe fittings are available at Nguyen Fittings. We offer tailored solutions to meet your specific requirements, ensuring optimal performance for your projects. For more information, please contact us at sales@nguyenfittings.com.
Monel K500 pipe fittings are widely used in marine engineering, offshore drilling platforms, chemical processing, oil refineries, and subsea equipment. Their superior strength and corrosion resistance make them ideal for pump shafts, valve components, seawater piping, and fasteners in corrosive and high-pressure systems. These fittings are also suitable for aerospace components, heat exchangers, and marine condensers. Monel K500’s durability in chloride-rich environments ensures long service life with minimal maintenance, making it a top choice for industries that demand performance under extreme mechanical and environmental stress.
Get in touch with one of our Technical Sales Representatives to request a quote or get answers to any questions you may have.
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