Chanchai Stainless is a reputable stainless steel manufacturer and supplier based in Bangkok, Thailand, specializing in high-quality Stainless Steel 304H Flanges for a variety of industrial uses. These flanges are celebrated for their impressive strength, durability, and corrosion resistance, all crafted to meet international quality standards for reliability and longevity. Thanks to their higher carbon content, SS 304H Flanges offer enhanced heat resistance, making them perfect for high-temperature applications. At Chanchai Stainless, we prioritize precision-engineered flanges that ensure safe and efficient piping connections, catering to industries like petrochemical, power generation, oil & gas, chemical processing, and structural engineering.
Stainless Steel 304H Flanges are mainly made up of chromium (18–20%) and nickel (8–11%), featuring a higher carbon content than the standard 304 grade, which boosts their high-temperature strength. They also contain trace amounts of manganese, silicon, phosphorus, sulfur, and nitrogen, which enhance their toughness and overall performance. These flanges boast a tensile strength of around 515 MPa and a yield strength of 205 MPa, along with good elongation and hardness. With excellent creep resistance and durability under thermal stress, SS 304H Flanges are ideal for applications that demand strength, stability, and oxidation resistance in high-temperature settings.
| Standard | ASTM A182 / ASME SA182 |
| Dimensions | ANSI/ASME B16.5, B 16.47 A & B, B16.48, BS4504, BS 10, EN-1092, DIN |
| Standard | ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges |
| Size | 1/2″ (15 NB) to 48″ (1200NB) |
| Class/Pressure | 150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64 |
| Flange Face Type | Flate Face (FF), Raised Face (RF), Ring Type Joint (RTJ) |
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N |
| SS 304H | 0.08 max | 2 max | 0.75 max | 0.045 max | 0.030 max | 18 – 20 | – | 8 – 11 | – |
| Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 8.0 g/cm3 | 1400 °C (2550 °F) | Psi – 75000 , MPa – 515 | Psi – 30000 , MPa – 205 | 35 % |
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We provide high-grade 301L stainless steel flanges, stringently tested for durability, strength, and resistance. Each one goes through thorough testing including chemical composition analysis, mechanical property analysis, and dimensional verification before we present these to the market with high quality performance. Appropriate certifications accompany every flange that will guarantee conformance with international standards. Flanges designed for efficiency and reliability meet any criterion set for applications in a variety of industries. With superior material quality and precise manufacturing, our 301L stainless steel flanges provide exceptional performance and durability in meeting different demanding requirements in various industries.
SS 304H long weld neck flanges are designed for high-stress applications, featuring a long tapered neck that provides a strong, continuous weld connection. They offer excellent strength and resistance to leakage.
SS 304H lap joint flanges are versatile components designed for ease of assembly and disassembly. They feature a loose fit, allowing for easy alignment and maintenance, with excellent resistance to corrosion.
SS 304H reducing flanges are used to connect pipes of different diameters, providing a smooth transition between sizes. They ensure a secure, leak-proof joint while offering strong corrosion resistance and durability.
Stainless Steel 304H Flanges are commonly utilized in industries that need robust and reliable piping connections in high-temperature and high-pressure situations. They find extensive use in boilers, heat exchangers, and superheaters, where resistance to oxidation and creep is essential. Petrochemical, oil & gas, and chemical processing facilities depend on these flanges for secure connections in corrosive and thermal environments. Additionally, power generation and refinery units incorporate them into piping systems that are subjected to extreme heat and pressure.
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