Monel 400 Pipe Fittings are top-notch fittings made from a nickel-copper alloy, celebrated for their remarkable resistance to corrosion, particularly in harsh marine and chemical settings. With about 67% nickel and 30% copper in their composition, Monel 400 stands out for its ability to withstand seawater, acids, alkalis, and salt solutions. These fittings boast impressive mechanical properties across a broad temperature spectrum, making them perfect for both cryogenic and high-temperature uses. You can find them in various forms like elbows, tees, reducers, crosses, and caps, ensuring that your piping systems have secure and leak-proof connections, even in the toughest conditions.
| Specification Properties: | Monel 400 Pipe Fittings |
| Cmmonly Used Fittings Types | End Cap, Stub End, Bend, Tee, Reducer, Cross, Adapter, 4 Wye, Elbow |
| Flange Connection Type | Clamp End / End Bell/ Threaded/ Weld |
| Thickness Tolerance: | Schedule 20S To Schedule XXS |
| Length: | Normal Pipe Size (1⁄₂”) to Normal Pipe Size (48”) |
| Manufacturer Of Fittings Dimension Types: | ANSI B16.28, MSS-SP-43 Type A, JIS B2312, ANSI B16.9, MSS-SP-43 Type B, JIS B2313 |
| Standard Chart : | JIS, NPT, ISO, DIN, EN |
| Pressure Rating Chart : | 150# To 2500#. |
| Materials List: | Bronze, Copper, Iron (Ductile/Cast), Carbon Steel, Inconel, Monel, Hastalloy, Alloy Steel, Brass, Titanium, Chrome-molybdenum, Cupro-Nickel 90/10 & 70/30, Nickel, Nickel Alloys, Tantalum, Stainless Steel. |
Monel 400 pipe fittings are composed primarily of nickel (63-70%) and copper (28-34%), with small amounts of iron, manganese, carbon, and silicon. This alloy offers excellent resistance to corrosion, particularly in seawater, acids, and alkalis. The mechanical properties include high strength, tensile strength ranging from 70,000 to 85,000 psi (483-586 MPa), and good fatigue and thermal-fatigue strength. It has a yield strength of about 30,000 psi (207 MPa) and can withstand temperatures up to 1000°F (538°C), making it suitable for harsh environments and high-stress applications.
| Grade | C | Mn | Si | Cu | S | Ti | Ni | Al | Fe |
| Monel 400 | 0.3 max | 2.0 max | 0.5 max | 28.0 – 34.0 | 0.02 max | – | 63.0 min | 0.50 max | 1.0 – 2.5 |
| Element | Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| Monel 400 | 8.8 g/cm3 | 1350 °C (2460 °F) | Psi – 80000 , MPa – 550 | Psi – 35000 , MPa – 240 | 40 % |
Tolu Fittings is a leading supplier of Monel 400 pipe fittings in Abuja, Nigeria. We offer an extensive range of Monel 400 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 400 | 2.4360 | N04400 | NW 4400 | NA 13 | МНЖМц 28-2,5-1,5 | NU-30M | NiCu30Fe |
Monel 400 pipe fittings from Tolu 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 400 has a tensile strength of around 550 MPa and a yield strength of about 240 MPa, along with excellent toughness and ductility. This alloy is particularly resistant to stress-corrosion cracking, pitting, and erosion, even in fast-moving seawater. Its nonmagnetic properties and good weldability add to its versatility across a range of industrial applications.
| 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 400 pipe fittings are available at Tolu Fittings. We offer tailored solutions to meet your specific requirements, ensuring optimal performance for your projects. For more information, please contact us at sales@tolufittings.com.
These fittings are widely used in sectors like marine engineering, chemical and hydrocarbon processing, oil and gas, heat exchangers, and power generation. You’ll often find them in piping systems that deal with seawater, acidic solutions, and alkalis. Monel 400 Pipe Fittings from trusted manufacturers like Tolu Fittings promise durability, performance, and a long service life, making them a reliable choice for critical operations that demand both corrosion resistance and mechanical strength.
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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