Khuliso Fittings is a trusted manufacturer and supplier based in Cape Town, South Africa, renowned for delivering top-quality pipe fittings across diverse industries. We are committed to precision engineering and excellence and offer a wide range of products, including Monel K500 Pipe Fittings. These fittings are celebrated for their exceptional corrosion resistance, high strength, and durability, making them ideal for critical marine, chemical processing, and oil and gas applications. We ensure reliable service and timely delivery to meet our customers’ needs.
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)
Khuliso Fittings has established itself as a reliable manufacturer and supplier of Monel K500 Pipe Fittings in Cape Town, South Africa. Renowned for providing top-notch alloy fittings, Khuliso Fittings caters to industries where performance in extreme conditions is essential. With years of experience and a commitment to engineering excellence, the company supplies Monel K500 fittings to various sectors, including marine engineering, chemical processing, oil and gas, and aerospace. Their fittings are meticulously crafted to meet international standards, ensuring high corrosion resistance and outstanding mechanical strength. Khuliso Fittings also prioritizes timely delivery and offers technical support for all your critical pipeline requirements.
| 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 % |
Monel K500 Pipe Fittings are composed of a nickel-copper alloy (approximately 63% nickel, 27–33% copper) with the addition of titanium and aluminum to enhance strength and hardness. This age-hardenable alloy boasts excellent corrosion resistance, especially in marine and chemical settings. It features a tensile strength of up to 1100 MPa and a yield strength of around 790 MPa, making it considerably stronger than Monel 400. Additionally, Monel K500 retains impressive toughness and ductility across a broad temperature range. These characteristics make it a perfect choice for applications that require both corrosion resistance and high mechanical performance.
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 Khuliso 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 find extensive use in industries where resistance to seawater, acidic conditions, and high mechanical stress is crucial. Typical applications include marine propulsion systems, offshore oil rigs, chemical processing equipment, heat exchangers, pumps, and valves. Thanks to their non-magnetic properties and excellent fatigue resistance, they are also utilized in precision instruments and military-grade hardware. Khuliso Fittings provides these components with the assurance of quality and reliability.
| 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 Khuliso Fittings. We offer tailored solutions to meet your specific requirements, ensuring optimal performance for your projects. For more information, please contact us at sales@khulisofittings.co.za.
Monel K500 pipe fittings are widely used in industries requiring high strength and exceptional corrosion resistance. Due to their resistance to saltwater and acidic conditions, these fittings are ideal for marine engineering, chemical and hydrocarbon processing, and sour gas environments. They also excel in offshore oil rigs, pumps, and valves exposed to extreme conditions. Monel K500’s superior mechanical properties and resistance to stress corrosion cracking make it suitable for aerospace, power generation, and specialized manufacturing, ensuring durability and reliability in demanding applications.
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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