Incoloy 825 is a nickel-iron-chromium alloy with additions of molybdenum, copper, and titanium. It is known for its exceptional corrosion resistance in various corrosive environments, making it a popular choice for applications in chemical processing, oil and gas, nuclear, and other industries. Incoloy 825 Flanges play a crucial role in connecting pipes, valves, and other equipment within a piping system, ensuring a secure and leak-free connection.
One of the key characteristics of Incoloy 825 is its resistance to both oxidizing and reducing acids, making it suitable for handling a wide range of corrosive substances. This alloy is particularly resistant to sulfuric and phosphoric acids, as well as to chloride-induced stress corrosion cracking. These properties make Incoloy 825 flanges ideal for use in aggressive environments where corrosion poses a significant challenge.
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Incoloy 825 flanges are manufactured in various types, including slip-on flanges, weld neck flanges, blind flanges, socket weld flanges, and lap joint flanges, among others. The choice of flange type depends on the specific requirements of the application and the nature of the piping system. Each type of flange has its own set of advantages, and selecting the right one is crucial for the overall performance and integrity of the system.
The manufacturing of Incoloy 825 Flanges involves precision and adherence to industry standards to ensure the desired mechanical properties and corrosion resistance. Common specifications for Incoloy 825 flanges include ASTM B564 for forged fittings and ASTM B425 for wrought fittings. These standards outline the composition, mechanical properties, and testing requirements for Incoloy 825 materials.
In applications where high temperatures and aggressive chemicals are present, Incoloy 825 flanges provide reliable performance, reducing the risk of system failure and maintenance costs. The alloy's versatility and durability make it a preferred choice for various industries requiring a combination of strength and corrosion resistance in their flange components.
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 | WERKSTOFF NR. | UNS | JIS | BS | GOST | AFNOR | EN | OR |
| Incoloy 825 | 2.4858 | N08825 | NCF 825 | NA 16 | ЭП703 | NFE30C20DUM | NiCr21Mo | XH38BT |
| Grade | C | Mn | Si | S | Cu | Fe | Ni | Cr | Al | Ti |
| 825 | 0.05 max | 1.00 max | 0.05 max | 0.03 max | 1.50 – 3.00 | 22.00 min | 38.00 – 46.00 | 19.50 – 23.50 | 0.02 max | 0.06 – 1.20 |
| Element | Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 825 | 8.14 g/cm3 | 1400 °C (2550 °F) | Psi – 80,000 , MPa – 550 | Psi – 32,000 , MPa – 220 | 30 % |
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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