Monel 400 is a nickel-copper alloy known for its excellent corrosion resistance, particularly in highly corrosive environments. Monel 400 Flanges are essential components in various industrial applications where resistance to acids, alkalies, and other harsh chemicals is crucial.
Chemical Composition and Properties: Monel 400 Flange primarily consists of nickel and copper, with small amounts of iron, manganese, carbon, and silicon. This alloy exhibits remarkable mechanical properties, including high tensile strength and good ductility, making it suitable for a wide range of applications. Its corrosion resistance extends to marine environments and solutions containing hydrofluoric acid, sulfuric acid, and alkalies.
Applications: Monel 400 flanges find applications in industries such as chemical processing, marine engineering, oil and gas, and more. They are used in pipelines, valves, pumps, and other critical components where corrosion resistance is paramount. Monel 400 flange is also employed in marine equipment like propeller shafts, as well as in heat exchangers and other equipment in chemical plants.
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Flange Types: Monel 400 flanges come in various types to suit different applications. Common types include monel 400 weld neck flange, monel 400 slip-on flange, monel 400 socket weld flange, monel 400 blind flange, and monel 400 lap joint flanges. Each type serves a specific purpose, such as facilitating easy welding, providing accessibility for inspection, or closing off the end of a pipe.
Corrosion Resistance: The corrosion resistance of Monel 400 Flange is a standout feature, making it a preferred choice in environments where other materials might fail. This resistance extends to both oxidizing and reducing conditions, contributing to the longevity of components like flanges in demanding applications.
These Fabrication and Welding: Monel 400 Flanges can be easily fabricated and welded. However, like many nickel alloys, it is essential to use processes and procedures that minimize the introduction of contaminants during welding to maintain its corrosion resistance.
ASTM B564 / ASME SB564, ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, etc.
ANSI/ASME B16.5, B 16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, etc.
1/2" (15 NB) to 48" (1200NB)
150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64 etc.
Raised Face (RF), Ring Type Joint (RTJ), Flat Face (FF), Large Male-Female (LMF), Lap-Joint Face (LJF), Small Male-Female (SMF), Small Tongue, Large Tongue & Groove, Groove
Forged / Threaded / Screwed / Plate
Plate Flange, Loose Plate Flange, Loose Plate With Weld Neck Flange, Blank Flange, Welding Neck Flange, Hubbed Slip on Flange, Hubbed Threaded Flange, Lapped Pipe End Flange.
All Flanges are marked as follows: Grade, Standard, Thickness, Heat No. (Or according to the customer’s request.)
| STANDARD | UNS | WERKSTOFF NR. | AFNOR | EN | JIS | BS | GOST |
| Monel 400 | N04400 | 2.4360 | NU-30M | NiCu30Fe | NW 4400 | NA 13 | МНЖМц 28-2,5-1,5 |
| Monel 400 | Ni | C | Al | Mn | Si | Fe | Cu | S | Co | Cr |
| 63.0 min | 0.3 max | 0.50 max | 2.0 max | 0.5 max | 1.0 – 2.5 | 28.0 – 34.0 | 0.02 max | – | – |
| Density | Melting Point | Yield Strength (0.2%Offset) | Tensile Strength | Elongation |
| 8.8 g/cm3 | 1350 °C (2460 °F) | Psi – 35,000 , MPa – 240 | Psi – 80,000 , MPa – 550 | 40 % |
Oil & Gas Industrires
Chemical Industries
Construction Industries
Offshore Pipelines & Pipe Works
Petrochemical Industry
Shipbuilding Industries
Hydraulic Applications
Piping Systems
Refining Industry
Food Processing Industry
Pulp & Paper Industry
Power Plant Industry
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