One of the top producers and suppliers of premium stainless steel components is Vinit Stainless, which has its headquarters in Chennai, India. We specialize in a wide range of stainless steel materials, including Stainless Steel 321H Flanges, and are well-known for our accuracy, robustness, and reliable performance. These flanges are ideal for the chemical processing, petrochemical, and aerospace industries because they are designed to endure high temperatures and corrosive conditions. Vinit Stainless has established a solid reputation in the sector by providing reliable solutions for important industrial applications all over the world, all while adhering to international standards and delivering products on schedule.
The iron-based alloys that make up stainless steel 321H flanges have up to 0.6% titanium, 9–12% nickel, and roughly 17–19% chromium. The alloy is stabilized by the titanium content, which guards against intergranular corrosion and sensitization when exposed to high temperatures. The flanges are therefore perfect for thermal cycling and welding processes. Tensile strength of 515–860 MPa, yield strength of 205 MPa, and elongation of approximately 40% are important mechanical characteristics. These flanges provide long-term dependability in demanding industrial settings because of their strong resistance to oxidation, corrosion, and scaling at high temperatures.
| Specifications | ASTM A182 / ASME SA182 |
| Size | 1/8″ NB TO 48″ NB |
| Standards | ANSI/ASME B16.5, B 16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, etc. |
| Class / Pressure | 150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64 etc. |
| Standard | ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, etc. |
| Grades | S31803 / S32205 A182 Gr F51 / F52 / F53 / F54 / F55 / F57 / F59 / F60 / F61 |
| Grade | C | Mn | Si | P | S | Cr | N | Ni | Ti | SS 321H | 0.04 – 0.10 | 2.0 max | 1.0 max | 0.045 max | 0.030 max | 17.00 – 19.00 | 0.10 max | 9.00 – 12.00 | 4(C+N) – 0.70 max |
| Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 8.0 g/cm3 | 1457 °C (2650 °F) | Psi – 75000 , MPa – 515 | Psi – 30000 , MPa – 205 | 35 % |
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We offers the best quality Stainless Steel 321H Flanges Vinit Stainless,which has undergone intense testing to produce top quality and performance. The flange is thoroughly tested for meeting international standards and specifications. Products supplied by us are certified by recognized authorities for traceability and reliability in each batch. With modern technology and strict quality control, we ensure durability, corrosion resistance, and good mechanical properties. Vinit Stainless stands by the delivery of flanges with the highest level of industry standards in functionality and safety.
Stainless Steel 321H Threaded Flanges are available in sizes ranging from 1/2″ to 24″ and are designed for easy assembly without welding. They offer good resistance to oxidation and corrosion, making them suitable for various industrial applications.
SS 321H Socket Weld Flanges, ranging from 1/2″ to 24″ in size, are designed to fit inside a pipe for strong, reliable connections. They provide excellent resistance to high-temperature environments and corrosive substances.
Stainless Steel 321H Lap Joint Flanges are available in sizes from 1/2″ to 24″ and are used with a backing flange to allow for easy alignment and assembly. They offer high resistance to oxidation and corrosive elements, ideal for applications with frequent disassembly.
Because of their exceptional resistance to oxidation, scaling, and corrosion, stainless steel 321H flanges are frequently used in high-temperature applications. They are perfect for the petrochemical, chemical, aerospace, and power generation industries because they operate effectively at temperatures higher than 800°C (1472°F). Common applications for these flanges include boilers, heat exchangers, pressure vessels, furnace parts, and thermal process apparatus. Good weldability and resistance to stress corrosion cracking ensure durability, while their increased carbon content gives them more strength at high temperatures. Because of these characteristics, 321H flanges are dependable in demanding operating environments that call for structural stability and durability.
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