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B-19, C P Tank, Mumbai - 400004
Stainless Steel 904L Flanges are high-alloy piping components engineered for demanding environments where exceptional corrosion resistance, mechanical reliability, and long service life are required. Technolloy Inc manufactures and supplies 904L flanges for connecting pipes, valves, pumps, vessels, and other equipment while maintaining a secure and dependable piping system. Stainless Steel 904L is a low-carbon, high-nickel austenitic stainless steel containing significant additions of molybdenum and copper, making it particularly suitable for aggressive acidic and chloride-bearing environments.
These flanges are available in configurations such as Weld Neck, Slip On, Blind, Socket Weld, Threaded, Lap Joint, and other flange designs according to project requirements. They can be produced in different pressure classes, dimensions, facing types, and specifications to suit industrial piping systems. Technolloy Inc supports custom manufacturing requirements for applications where standard flange dimensions, tolerances, or material specifications need to be adapted to engineering drawings.
Stainless Steel 904L Flanges are precision-manufactured pipe connection components made from UNS N08904 stainless steel. Their composition provides strong resistance to sulfuric acid, phosphoric acid, seawater, chlorides, and several other corrosive media. The high nickel and molybdenum content helps improve resistance to pitting, crevice corrosion, and stress corrosion cracking, while the copper addition enhances performance in certain reducing acid environments. These characteristics make 904L flanges an important choice for process industries that require more corrosion resistance than conventional stainless steel grades can provide.
The flange creates a bolted connection between adjoining piping or equipment, allowing components to be installed, inspected, maintained, and replaced without cutting the piping system. Stainless Steel 904L Flanges can be manufactured to widely used dimensional and pressure standards, including ASME, ANSI, DIN, EN, and related international specifications, subject to the required design and application. Material certificates, dimensional inspection, testing, marking, and packaging can also be provided according to customer and project requirements.
Stainless Steel 904L Flanges offer dependable mechanical strength for demanding piping assemblies and process equipment. Their austenitic structure provides useful toughness and ductility, helping the flange withstand pressure, vibration, thermal changes, and mechanical loading when correctly designed and installed. The combination of material strength and dimensional accuracy supports reliable connections in industrial systems operating under challenging service conditions.
One of the principal advantages of 904L flanges is their excellent resistance to highly corrosive environments. The alloy's elevated nickel, molybdenum, and copper content improves resistance to localized corrosion and many acidic media. This makes the material particularly valuable for chemical processing, marine equipment, pollution-control systems, pharmaceutical production, and other applications where corrosion can cause premature component failure.
The corrosion-resistant composition of Stainless Steel 904L Flanges contributes to extended service life and dependable performance. In suitable operating conditions, the material can remain functional for long periods with comparatively limited replacement requirements. Its durability is especially beneficial in systems where shutdowns, maintenance access, and component replacement can create significant operational costs.
904L is a highly alloyed stainless steel, so machining requires appropriate tooling, cutting conditions, and production practices. When processed correctly, it can be machined and fabricated into accurate flange geometries with controlled dimensions and surface finishes. Professional manufacturing methods help maintain hole alignment, flange thickness, facing accuracy, and other critical characteristics needed for proper bolted connections.
Although 904L stainless steel generally has a higher initial material cost than standard stainless steel grades, its corrosion resistance and extended service potential can improve overall lifecycle economics. Reduced corrosion-related failures, fewer unplanned replacements, and longer maintenance intervals can help offset the initial investment. For aggressive process environments, selecting an appropriate high-performance alloy can therefore provide better long-term value than using a less resistant material.
Stainless Steel 904L Flanges are designed for applications where consistent performance is essential over extended operating periods. Proper material selection, accurate fabrication, suitable gasket selection, correct bolting, and appropriate installation practices all contribute to the reliability of the completed flange connection. Technolloy Inc can manufacture flanges according to specified dimensions, standards, material requirements, and inspection needs for demanding industrial projects.
Chemical processing facilities use 904L flanges in piping and equipment exposed to aggressive acids, chlorides, and corrosive process fluids. The alloy's resistance to several acidic environments makes it suitable for connections around reactors, storage vessels, heat exchangers, pumps, and process pipelines where conventional stainless steel may not provide sufficient corrosion protection. Stainless Steel 904L Flanges Manufacturers serve this sector by producing application-specific flange configurations with appropriate dimensions, pressure ratings, and material certification.
Pharmaceutical and specialized process facilities require corrosion-resistant components that can support hygienic and controlled manufacturing environments. 904L flanges can be used in selected process piping, tanks, vessels, and equipment where resistance to corrosive cleaning chemicals and process media is important. Stainless Steel 904L Flanges Suppliers can provide components manufactured to project specifications, including required dimensions, surface finishes, inspection documentation, and packaging conditions.
Marine installations and seawater handling systems can expose piping components to chlorides and harsh moisture conditions. The strong resistance of 904L stainless steel to pitting and crevice corrosion makes it suitable for selected marine piping connections, desalination equipment, seawater processing systems, and related applications. Stainless Steel 904L Flanges Stockists help support maintenance and replacement requirements by making commonly required flange sizes and configurations available for industrial users.
Flue gas treatment, industrial wastewater processing, pollution-control equipment, and other treatment systems can involve corrosive fluids and chemically aggressive operating conditions. 904L flanges provide a robust connection solution where corrosion resistance is a key consideration. Stainless Steel 904L Flanges Exporters support international projects by supplying components manufactured according to recognized dimensional and material standards for customers across different industrial markets.
Technolloy Inc provides Stainless Steel 904L Flanges for engineering, fabrication, maintenance, and industrial piping requirements. The company can support standard and customized flange requirements based on drawings, specifications, dimensions, pressure classes, facing details, and applicable standards. Each order can be evaluated according to service conditions and project requirements so that the selected flange configuration is appropriate for the intended piping application.
Stainless Steel 904L Flanges are available for domestic and international supply, with dimensions, quantities, packaging, testing, and delivery schedules determined according to customer requirements. Pricing depends on flange type, nominal size, pressure rating, material quantity, manufacturing complexity, testing, and order volume. Technolloy Inc can provide quotations based on the exact technical and commercial requirements of the project.
| Specification | ASTM A182 / ASME SA182 |
|---|---|
| Dimension Standard | ANSI/ASME B16.5, B 16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, etc. |
| Standard | ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, etc. |
| Size | 1/2" (15 NB) to 48" (1200NB) |
| Class / Pressure | 150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64 etc. |
| Flange Face Type | Flate Face (FF), Raised Face (RF), Ring Type Joint (RTJ) |
| DIN Flanges | DIN 2527, 2566, 2573, 2576, 2641,2642, 2655, 2656, 2627, 2628, 2629, 2631, 2632, 2633, 2634, 2635, 2636, 2637,2638, 2673. |
| JIS Flanges | JIS B2220 5K, JIS B2220 10K, JIS B2220 16K, JIS B2220 20K |
| BS Flanges | BS4504 PN 6, BS 4504 PN 10, BS4504 PN 16, BS4504 PN 25, BS4504 PN 40, BS 4504 PN 64, BS 4504 PN 100, BS 4504 PN 160, BS 4504 PN 250, BS 10, BS Table D, BS Table E, BS Table F, BS Table H. |
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | Cu |
|---|---|---|---|---|---|---|---|---|---|
| SS 904L | 0.020 max | 2.00 max | 1.00 max | 0.040 max | 0.030 max | 19.00 – 23.00 | 4.00 – 5.00 max | 23.00 – 28.00 | 1.00 – 2.00 |
| Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
|---|---|---|---|---|
| 7.95 g/cm3 | 1350 °C (2460 °F) | Psi – 71000 , MPa – 490 | Psi – 32000 , MPa – 220 | 35 % |
Stainless Steel 904L Flanges are used for connecting pipes, valves, pumps, vessels, heat exchangers, and process equipment in corrosive industrial environments. They are commonly considered for chemical processing, marine, seawater, pharmaceutical, pollution-control, and specialized process applications.
904L Flanges are manufactured from a high-alloy austenitic stainless steel commonly identified as UNS N08904. The alloy contains elevated nickel and molybdenum along with copper, which provides enhanced resistance to many aggressive corrosive environments.
Yes, Stainless Steel 904L Flanges can be manufactured in several configurations, including Weld Neck, Slip On, Blind, Socket Weld, Threaded, and Lap Joint designs. The suitable type depends on the piping layout, pressure requirements, connection method, and application.
904L flanges can be manufactured to applicable ASME, ANSI, DIN, EN, and other recognized international dimensional and pressure standards, depending on the project specification. Exact compliance should be confirmed against the required standard, flange class, dimensions, and material specification before ordering.
The price of Stainless Steel 904L Flanges varies according to size, flange type, pressure rating, material quantity, manufacturing requirements, testing, and order volume. An indicative reference price may start around USD 120 per flange for selected standard configurations, while the final price should be confirmed according to the exact customer specification.
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