Weston Stainless of Midland, UK, is a leading supplier of high-strength stainless steel products offering precision-engineered components for multiple industries. Of their products, Stainless Steel 304H Flanges are notable for their greater strength and corrosion resistance. The Dutch Flanges are made of Grade 304H stainless steel, a high-carbon version of 304, which provides better high-temperature service. Used in different forms, such as weld neck, slip-on, and blind flanges, they are made of austenitic stainless steel and provide durability and reliability in extreme environments. Used in petrochemical, power generation, and high-temperature applications, these flanges are made of austenitic stainless steel and provide top-notch mechanical properties.
Stainless Steel 304H Flanges consist of 18-20% Chromium, 8-11% Nickel, 0.04-0.10% Carbon, 2% Manganese, 1% Silicon, 0.045% Phosphorus, and 0.03% Sulfur for added strength and corrosion resistance. The mechanical characteristics are tensile strength of 515 MPa, yield strength of 205 MPa, elongation of 40%, and hardness of 201 HBW. The physical properties include a density of 7.9 g/cm³, thermal conductivity of 16.3 W/m·K, and an expansion coefficient of 17.3 µm/m·°C, rendering them suitable for high temperature and pressure applications in industries.
| 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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Stainless Steel 304H Flanges have widespread applications across high-temperature and corrosion-resistance industries. The flanges find applications in petrochemical, power plant, oil & gas, and chemical processing plant facilities, where they seal pipes, valves, and equipment efficiently. The flanges are most suited for superheater parts, boilers, and heat exchanger components, owing to the strong properties they possess at higher temperatures. Moreover, they find applications in the marine, food processing, and pharmaceutical industries for their hardness and resistance to oxidation. They can endure thermal stress and pressure due to which they are in demand for tough industrial applications.
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.
Designed for ease of assembly and disassembly. They feature a loose fit, allowing for easy alignment and maintenance, with excellent resistance to corrosion.
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 supplied with test certificates like EN 10204 3.1, 3.2, Mill Test Certificates, and Third-Party Inspection Reports for quality and conformity. They are safely packed in wooden crates, pallets, or bubble wrap to avoid damage during shipping. Fast and safe delivery modes like air, sea, and road transport guarantee timely supply to industries across the globe, fulfilling urgent project needs efficiently.
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