Paul Tube Fittings stands out as a top-notch manufacturer and supplier of high-performance Monel Tube Fittings, proudly based in Houston, USA. With a commitment to precision engineering and remarkable durability, the company provides an extensive selection of Monel fittings, including elbows, tees, unions, and connectors. These products are crafted to meet the rigorous demands of various industries, ensuring they perform optimally in corrosive and high-pressure settings. Renowned for their quality, reliability, and prompt delivery, Paul Tube Fittings has earned a solid reputation both domestically and internationally as a trusted provider of premium Monel Tube Fitting solutions.
Monel Tube Fittings are primarily made up of nickel (up to 67%) and copper, along with trace amounts of iron, manganese, carbon, and silicon. This unique alloy composition grants exceptional resistance to corrosion, particularly in marine and chemical environments. On the mechanical side, Monel boasts a tensile strength that ranges from 70 to 110 ksi and a yield strength of 25 to 45 ksi, along with impressive elongation and hardness. These characteristics make Monel Tube Fittings perfect for high-pressure and high-temperature applications, ensuring they remain durable, reliable, and long-lasting in demanding industrial settings.
| Monel Tube Fittings specification (ASTM / ASME) | ASTM B366/ ASME SB366 |
|---|---|
| Working Pressure | Up to 6,000psi (based on severity of application) |
| Two-Ferrule Tube Fittings | Pressure Ratings : Up to 11 000 psig (760 bar) |
| Medium-Pressure, Gaugeable | Pressure Ratings: Up to 20 000 psig (1378 bar) Temperature Ratings: Up to 1000°F (537°C) |
| High-Pressure Monel Tube Fittings | Pressure Ratings: Up to 60 000 psig (4134 bar) Temperature Ratings: Up to 1000°F (537°C) Materials of construction: 316 Stainless Steel Tube Fittings, Alloy 2507, Monel 400 Tube fittings |
| Monel Tube Fittings Special sizes | 22mm Monel tube fittings 25mm Monel 400 tube fittings 32mm Monel K500 tube fittings 50mm Monel Ferrule tube fittings |
| End Connections | Types: NPT, ISO/BP, SAE/MS, AN, weld ends, port connectors, sanitary flanges, tube adapters |
| Configurations | Straights, elbows, tees, crosses, caps, plugs, nuts and ferrules Chromatograph and Column End |
| Types | Unions, NPT, medium-pressure cone and thread adapters, male SAE/MS, reducers, port connectors, tube adapters, caps, plugs |
| Monel Ferrule Tube Fittings Sizes | 1/16 to 2 in.; 2 to 50 mm 1/4, 3/8, 1/2, 9/16, 3/4 in.; 6, 10, 12 mm |
| Specification | Items Made from Hex – ASTM B574 ; Items made from Round Bar- ASTM B564 |
| Brand Name | Monel Tube fittings |
| Tube Size | 1/16”OD to 2”OD, 2mm OD to 50mm OD |
| Threads | NPT (ANSI B1.20.1), BSP, BSPT (ISO thread configurations), UNF, SAE etc. |
| PTFE Standards | ASTM D1710, ASTM D3294 |
| Applicable Temperature | 150-400°C |
| Monel Tube Fittings Packing Details |
|
| STANDARD | AFNOR | UNS | BS | WERKSTOFF NR. | GOST | JIS | EN |
| Monel K500 | – | N05500 | – | 2.4375 | – | – | – |
| Monel 400 | NU-30M | N04400 | NA 13 | 2.4360 | МНЖМц 28-2,5-1,5 | NW 4400 | NiCu30Fe |
|
OD |
OD Actual |
Thread Designation – Nominal Size |
Thread per inch |
|
|
(fraction inch) |
(inches) |
(inches) |
NPT |
BSP |
|
5/16 |
0.3125 |
1/16 |
27 |
28 |
|
13/32 |
0.405 |
1/8 |
27 |
28 |
|
35/64 |
0.540 |
1/4 |
18 |
19 |
|
43/64 |
0.675 |
3/8 |
18 |
19 |
|
27/32 |
0.840 |
1/2 |
14 |
14 |
|
1-3/64 |
1.050 |
3/4 |
14 |
14 |
|
1-5/16 |
1.315 |
1 |
11-1/2 |
11 |
|
1-21/32 |
1.660 |
1-1/4 |
11-1/2 |
11 |
|
1-29/32 |
1.900 |
1-1/2 |
11-1/2 |
11 |
|
2-3/8 |
2.375 |
2 |
8 |
11 |
|
2-7/8 |
2.875 |
2-1/2 |
8 |
11 |
|
3-1/2 |
3.5 |
3 |
8 |
11 |
|
4 |
4.0 |
3-1/2 |
8 |
11 |
|
4-1/2 |
4.5 |
4 |
8 |
11 |
|
5-5/8 |
5.563 |
5 |
8 |
11 |
|
6-5/8 |
6.718 |
6 |
8 |
11 |
Contact us to get a quick quote for your requirement.
Monel Tube Fittings find their place in various industries that require top-tier corrosion resistance and mechanical integrity. They are particularly suited for marine engineering, oil and gas pipelines, chemical processing systems, and heat exchangers. In power generation and offshore platforms, these fittings consistently perform well under extreme conditions. Their ability to resist seawater makes them ideal for coastal and underwater applications. Additionally, Monel’s non-magnetic properties are advantageous in aerospace and defense sectors. These fittings ensure leak-free connections and are capable of handling aggressive chemicals, making them vital for safe and efficient operations in complex industrial systems.
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