Stainless Steel 304H Flanges are high-temperature austenitic stainless steel components engineered for demanding industrial piping systems and pressure applications. Steel Icon Stainless Pvt. Ltd. manufactures premium-quality SS 304H flanges designed to perform reliably in refineries, petrochemical plants, power generation units, and heavy fabrication projects. These flanges are specifically developed for elevated temperature service where strength, oxidation resistance, and structural integrity are critical.
In industrial, mechanical, and structural engineering environments, Stainless Steel 304H Flanges serve as essential connectors in piping networks, boilers, heat exchangers, and process equipment. Their enhanced carbon content compared to standard 304 grade provides improved creep strength at high temperatures, making them suitable for applications where long-term thermal stability is required.
Stainless Steel 304H is a high carbon variant of the 304 austenitic stainless steel grade. The increased carbon content enhances high-temperature strength and creep resistance while maintaining the corrosion resistance typical of chromium-nickel stainless steels. The alloy generally contains around 18 percent chromium and 8 percent nickel, with controlled carbon levels to ensure improved performance in elevated temperature environments.
Metallurgically, Stainless Steel 304H Flanges possess an austenitic microstructure that provides excellent toughness, ductility, and weldability. The chromium content forms a passive oxide layer that protects against oxidation and general corrosion in industrial atmospheres. These flanges maintain structural integrity under cyclic thermal loads, making them suitable for pressure equipment and piping systems subjected to continuous high heat exposure.
Performance characteristics include high tensile strength, reliable yield strength, and excellent resistance to scaling at elevated temperatures. Stainless Steel 304H Flanges can be fabricated in various types such as weld neck, slip-on, blind, socket weld, and threaded flanges, meeting the needs of diverse piping configurations in chemical processing and power plant installations.
Stainless Steel 304H Flanges, Stainless Steel 304H Flanges Manufacturers, Stainless Steel 304H Flanges Suppliers, Stainless Steel 304H Flanges Stockists, Stainless Steel 304H Flanges Exporters
Stainless Steel 304H Flanges offer superior high-temperature strength compared to standard 304 flanges, making them a preferred choice for heat exchangers, superheaters, and boiler components. Their ability to resist creep deformation ensures long-term dimensional stability under continuous stress and thermal loading.
Corrosion resistance is another significant advantage. These flanges withstand oxidation, moisture, and a wide range of industrial chemicals. This makes them suitable for use in petrochemical refineries, fertilizer plants, and industrial fabrication projects where corrosion control is essential.
Durability and long service life contribute to overall cost efficiency. Stainless Steel 304H Flanges require minimal maintenance and deliver dependable sealing performance in pressure piping systems. Their good machinability and weldability simplify installation and integration with stainless steel pipes, tubes, plates, and structural components, supporting efficient project execution.
Stainless Steel 304H Flanges in India, Stainless Steel 304H Flanges Manufacturers in India, Stainless Steel 304H Flanges Suppliers in India, Stainless Steel 304H Flanges Stockists in India, Stainless Steel 304H Flanges Exporters in India
In high-temperature power generation systems, Stainless Steel 304H Flanges Manufacturers provide flanges used in steam lines, boiler assemblies, and turbine piping where elevated thermal strength is mandatory. These flanges ensure secure connections that withstand pressure and thermal expansion in demanding operating conditions.
Within the petrochemical and oil refining sectors, Stainless Steel 304H Flanges Suppliers deliver corrosion-resistant flanges for process piping, reactors, and heat exchangers. The material’s resistance to oxidation and chemical exposure ensures safe fluid transfer and long-term reliability in aggressive environments.
For large-scale industrial fabrication and plant maintenance, Stainless Steel 304H Flanges Stockists maintain ready inventory of various pressure classes and sizes. This availability supports rapid replacement, system upgrades, and expansion projects in chemical plants, offshore facilities, and manufacturing units.
In global infrastructure and energy projects, Stainless Steel 304H Flanges Exporters supply certified flanges to international markets, meeting project specifications for power plants, desalination facilities, and industrial piping networks. Compliance with international standards ensures seamless integration into complex engineering systems worldwide.
Stainless Steel 304H Flanges in United States, Stainless Steel 304H Flanges Manufacturers in United States, Stainless Steel 304H Flanges Suppliers in United States, Stainless Steel 304H Flanges Stockists in United States, Stainless Steel 304H Flanges Exporters in United States
Stainless Steel 304H Flanges are commonly manufactured in accordance with ASTM A182 specification for forged or rolled alloy and stainless steel pipe flanges and fittings for high-temperature service. The corresponding ASME standard is ASME SA182, which defines chemical composition, mechanical properties, heat treatment requirements, and testing procedures. These flanges are also produced in compliance with ASME B16.5 and ASME B16.47 dimensional standards for pressure ratings and flange dimensions. Adherence to these standards ensures that Stainless Steel 304H Flanges meet strict quality and safety requirements for pressure equipment, boilers, heat exchangers, and industrial piping systems.
Steel products such as flanges, bars, pipes, tubes, plates, sheets, and coils are classified under globally recognized standards including ASTM, ASME, EN, DIN, JIS, and ISO. ASTM and ASME standards are widely adopted for pressure vessels, piping systems, and high-temperature service components in North America and the Middle East. EN and DIN standards govern European engineering materials, while JIS standards apply to Japanese industrial specifications. ISO standards provide international guidelines for quality management, testing, and material certification. Stainless Steel 304H is designated based on its chemical composition and high carbon content, enabling engineers and procurement specialists to accurately specify materials for industrial fabrication, structural engineering, and thermal processing applications.
Steel Icon Stainless Pvt. Ltd. is one of the leading manufacturer and supplier of 304 Stainless Steel ANSI B16.5 Flange, SS 304L ASME B16.5 Class 150 Flanges, 304H SS 300# Flanges, 304/304L/304H Stainless Steel 1500# Flanges, ASTM A182 F304 2500 Lbs Flanges, ASME SA 182 F304L BS10 Table E Flanges, DIN Flanges, JIS Flanges at the best price in India.
Request Latest Price & Stock Availability| Specification | ASTM A182 / ASME SA182 |
|---|---|
| Dimension Standard | ANSI/ASME B16.5, B16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, etc. |
| Standards | ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, etc. |
| Size | 1/2" (15 NB) to 48" (1200 NB) |
| Class / Pressure | 150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64 |
| Flange Face Type | Flat 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, 10K, 16K, 20K |
| BS Flanges | BS4504 PN 6, PN 10, PN 16, PN 25, PN 40, PN 64, PN 100, PN 160, PN 250, BS 10 Tables D, E, F, H |
| C | Mn | Si | P | S | Cr | Ni | N | |
|---|---|---|---|---|---|---|---|---|
| 304H | min: 18.0 max:20.0 |
min: 8.0 max: 10.5 |
min: 0.04 max:0.10 |
0.75 max |
2.0 max |
0.045 max |
0.03 max |
0.10 max |
| Grade | Tensile Strength ksi (min) | Yield Strength 0.2% ksi (min) | Elongation % | Hardness (Brinell) MAX | Hardness (Rockwell B) MAX |
|---|---|---|---|---|---|
| 304H | 75 | 30 | 40 | 201 | 92 |
