Manufacturer, Supplier & Exporter of Monel 400 Spool
Monel 400 Spool is a high-performance nickel–copper alloy spool assembly widely used in industries that require exceptional corrosion resistance, high strength and excellent durability in both acidic and alkaline environments. Riddhi Siddhi Impex, a trusted manufacturer and domestic supplier in India, offers precisely engineered Monel 400 Spool assemblies for various industrial applications. These spools are designed to withstand harsh working conditions such as seawater exposure, chemical plant operations and marine engineering systems. With its remarkable corrosion resistance and mechanical stability, Monel 400 Spool has become a preferred material for pipelines, fluid transfer systems and high-pressure environments.
Manufactured using premium raw materials and advanced fabrication techniques, Monel 400 Spools by Riddhi Siddhi Impex ensure long service life and superior performance. The alloy contains approximately 67% nickel and 23% copper, making it highly resistant to hydrofluoric acid, saltwater and alkalis. This unique combination of properties allows Monel 400 to function efficiently even in rapidly flowing seawater, making it ideal for desalination plants, offshore drilling rigs and shipbuilding. Whether used for process piping, heat exchanger piping or marine equipment, these spools maintain structural stability and resist corrosion fatigue.
Riddhi Siddhi Impex specializes in custom-fabricated Monel 400 Spools that meet international standards and customer specifications. The company produces spools with various end connections such as flanged ends, threaded ends and welded assemblies. Each spool undergoes strict quality control, including hydro testing, NDT testing and dimensional inspection, ensuring its readiness for critical operations. These high-quality spools are manufactured in accordance with ASTM B165, B564 and relevant Monel material standards..
As a domestic supplier, Riddhi Siddhi Impex caters to major industrial hubs across India. The company supplies Monel 400 Spools in cities like Mumbai, Delhi, Bengaluru, Hyderabad, Chennai, Kolkata, Pune, Ahmedabad, Surat, Vadodara, Rajkot, Nagpur, Indore, Bhopal, Jaipur, Kanpur, Lucknow, Agra and Varanasi. Industries in these regions rely heavily on corrosion-resistant piping, and Monel 400 is one of the most widely used materials for these purposes...
In addition to major metro cities, the company also supplies Monel 400 Spools to fast-growing industrial locations such as Amritsar, Chandigarh, Mysuru, Udaipur, Jodhpur, Visakhapatnam, Coimbatore, Madurai, Kochi, Thiruvananthapuram, Mangalore, Nashik, Kolhapur, Chandrapur, Akola and Nagpur. These regions include sectors such as petrochemical refineries, chemical processing plants, marine yards, fertilizer plants, energy generation units and water treatment facilities..
Monel 400 Spool – Specification
| Product Name | Monel 400 Spool |
|---|---|
| Manufacturer / Supplier | Riddhi Siddhi Impex |
| Material Grade | Monel 400 / UNS N04400 |
| Standard | ASTM B165, ASTM B725, ASTM B564 |
| Size Range | 1/2" NB to 24" NB (Custom Available) |
| Thickness | Sch 5 to Sch XXS |
| Manufacturing Type | Seamless, Welded, Fabricated |
| End Connections | Flanged, Beveled, Threaded, Welded Ends |
| Temperature Range | -196°C to 550°C |
| Applications | Marine, Chemical Plants, Oil & Gas, Heat Exchangers, Power Generation |
Chemical Composition of Monel 400
| Element | Content (%) |
|---|---|
| Nickel (Ni) | 63.0 min |
| Copper (Cu) | 28.0 – 34.0 |
| Iron (Fe) | 2.50 max |
| Manganese (Mn) | 2.00 max |
| Carbon (C) | 0.30 max |
| Silicon (Si) | 0.50 max |
| Sulfur (S) | 0.024 max |
Mechanical Properties of Monel 400
| Property | Value |
|---|---|
| Tensile Strength | 550 MPa min |
| Yield Strength (0.2% offset) | 240 MPa min |
| Elongation | 35% min |
| Hardness | HRB 80 max |
| Melting Point | 1300°C – 1350°C |
Monel 400 Spool – Dimension Chart (Nominal)
| NPS (Inch) | Outside Diameter (mm) | Wall Thickness (mm) | Length |
|---|---|---|---|
| 1/2" | 21.34 | 2.77 | Up to 12 m |
| 1" | 33.40 | 3.38 | Up to 12 m |
| 2" | 60.33 | 3.91 | Up to 12 m |
| 4" | 114.30 | 6.02 | Up to 12 m |
| 6" | 168.28 | 7.11 | Up to 12 m |
| 10" | 273.05 | 9.27 | Up to 12 m |
| 16" | 406.40 | 12.70 | Up to 12 m |
Equivalent Grades of Monel 400
| Standard | Equivalent Grade |
|---|---|
| UNS | N04400 |
| WNR | 2.4360 / 2.4361 |
| BS | NA 13 |
| JIS | NW 4400 |
Equivalent Standards
| Standard | Description |
|---|---|
| ASTM B165 | Seamless Nickel Alloy Pipe |
| ASTM B564 | Forged Fittings & Flanges for Nickel Alloys |
| ASTM B725 | Welded Nickel Alloy Pipe |
| ASME SB165 | Nickel Alloy Pipes for Pressure Service |
Other Nickel Alloy Spool Types
| Type | Description |
|---|---|
| Monel K500 Spool | Age-hardened variant with higher strength |
| Inconel 600 Spool | High-temperature corrosion-resistant alloy |
| Incoloy 800 Spool | High heat-resistance for petrochemical plants |
| Hastelloy C276 Spool | Superior corrosion resistance in chemicals |
Riddhi Siddhi Impex has also established a strong supply chain connection in highly industrialized zones like Vilayat, Somnath, Dahej, Narmada, Ankleshwar, Navsari, Valsad and Rajpipla, ensuring reliable delivery of Monel 400 Spool assemblies for large-scale projects. These industrial clusters demand high-strength, corrosion-resistant materials for fluid handling, and Monel 400 continues to remain a top choice.
Frequently Asked Questions (FAQs)
dl>Cities we have supplied our products to
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Countries we have supplied our products to
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