| Flanges Types | Slip On, Weld Neck, Long Weld Neck, Threaded, Blind, Companion, Lap Joint |
|---|---|
| Class | 150 Lbs, 300 Lbs, 600 Lbs, 900 Lbs, 1500 Lbs, 2500 Lbs Asa 150, Asa 300, Pn 6, 10, 16, 25, 40, 64, 100, 160 |
| Size | 1/2″ (15 Nb), 48″ (1200nb) Dn10~dn5000 |
| Type | Raised Face (rf), Flat Face (ff), Ring Type Joint (rtj), Lap Joint Face (ljf), Large Male Female (lmf), Small Male Female (smf), Large Tongue & Groove, Small Tongue, Groove |
Monel Flanges manufactured in India for marine chemical processing oil gas and high corrosion resistance applications
Monel Flanges – Material & Grade Table
| Material | Grade / Specification | UNS No. | Key Properties | Applicable Standards |
|---|---|---|---|---|
| Monel Alloy | Monel 400 | N04400 | Excellent corrosion resistance, seawater service | ASTM B564 / ASME B16.5 |
| Monel Alloy | Monel K500 | N05500 | High strength, age-hardenable | ASTM B564 / ASME B16.5 |
| Monel Alloy | Monel 401 | N04401 | Good thermal and electrical conductivity | ASTM B564 |
| Monel Alloy | Monel 404 | N04404 | Controlled expansion, good brazing properties | ASTM B564 |
| Monel Alloy | Monel Alloy (Forged) | — | Nickel-copper alloy with high toughness | ASTM / ASME Standards |
Monel flanges are widely applied in the pipeline, pressure vessels, heat exchangers, pumps, and valve assemblings that are subjected to hostile conditions. They are especially appropriate in the service of saltwater and chemicals due to their excellent resistance to corrosion, erosion, and stress corrosion cracking. Monel flanges are also custom-manufactured to special engineering requirements per drawings and technical specifications.
Monel Flanges – Sizes & Availability Table
| Flange Type | Nominal Size (NPS) | Pressure Rating (Class / PN) | Minimum Order Quantity | Available Cities |
|---|---|---|---|---|
| Weld Neck Flange | ½" – 48" | Class 150–2500 / PN10–PN100 | 200 Pcs | Mumbai, Chennai |
| Slip-On Flange | ½" – 24" | Class 150–600 / PN10–PN40 | 200 Pcs | Pune, Ahmedabad |
| Blind Flange | ½" – 48" | Class 150–2500 / PN10–PN100 | 200 Pcs | Delhi, Kolkata |
| Socket Weld Flange | ½" – 12" | Class 150–1500 / PN10–PN100 | 200 Pcs | Hyderabad, Bangalore |
| Threaded Flange | ½" – 12" | Class 150–600 / PN10–PN40 | 200 Pcs | Surat, Coimbatore |
Key Features of Monel Flanges
Monel flanges are chosen because of its high mechanical properties and the ability to withstand the adverse environment which is quite demanding in nature.
- Extraordinary seawater, acid and alkaline medium resistance.
- Excellent mechanical strength over extensive temperature interval.
- Superior resistance to corrosion, pitting and stress corrosion cracking.
- Appropriate to high pressure and high temperature operations.
- Extensive life time and less service needs.
These are some of the aspects that render Monel flanges a reliable choice in critical piping and fluid-handling systems of the industry.
Besides Monel, flanges we also offer a large variety of Stainless Steel Flanges and Super Duplex Flanges to meet the needs of multi-material-flange projects so that buyers can obtain both corrosion-resistant and high-strength flange solutions in a single production source.
Type of Sub-products

Monel Weld Neck Flanges Monel Weld Neck Flanges
Monel Weld Neck Flanges are produced to work under high pressure and high temperatures in marine environment, chemical business and offshore. They have better corrosion ability and long life in harsh conditions.

Monel Slip On Flanges Monel Slip On Flanges
Monel Slip On Flanges are designed to suit low to moderate pressures and provide fantastic seawater, acids and aggressive chemicals resistance. Popularly used in chemical processing and marine industries.
