Stainless Steel 321 Flanges are top-notch piping components crafted for situations that demand outstanding corrosion resistance, high-temperature strength, and lasting durability. Thanks to the addition of titanium, these flanges are resistant to intergranular corrosion, making them perfect for use in boilers, heat exchangers, pressure vessels, and industrial piping systems that face extreme temperatures and harsh chemical environments.
The makeup of Stainless Steel 321 Flanges includes iron, chromium, nickel, and titanium. Chromium is key for corrosion resistance, while nickel boosts toughness and ductility. Titanium plays a crucial role in stabilizing the microstructure, ensuring that the flanges maintain their mechanical integrity even at high temperatures. This combination results in flanges that boast impressive tensile strength, thermal stability, and creep resistance, guaranteeing secure, leak-proof connections in high-pressure and 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) |
| SS 321 | 0.08 max | 2.0 max | 1.0 max | 0.045 max | 0.030 max | 17.00 – 19.00 | 0.10 max | 9.00 – 12.00 | 5(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 321 Flanges Amer 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. Amer Stainless stands by the delivery of flanges with the highest level of industry standards in functionality and safety.
SS 321 slip-on flanges are designed for high-temperature and corrosion-resistant applications. Made from stainless steel, they provide reliable connections in piping systems, offering ease of installation and durability.
SS 321 weld neck flanges are engineered for high-stress applications, providing strong, reliable connections in piping systems. Crafted from stainless steel, they offer excellent resistance to high temperatures and corrosion.
SS 321 socket weld flanges are ideal for high-pressure and high-temperature applications. Made from stainless steel, they offer strong, reliable connections with ease of installation and excellent resistance to corrosion.
SS 321 blind flanges are used to seal the end of a piping system. Crafted from stainless steel, they provide a robust, corrosion-resistant solution for maintaining system integrity and pressure.
SS 321 ring type joint flanges offer a secure, leak-proof seal in high-pressure environments. Made from stainless steel, they feature a ring groove design for reliable, corrosion-resistant performance in demanding applications.
SS 321 forged flanges are crafted from stainless steel for high strength and durability. They are ideal for demanding applications, offering excellent resistance to high temperatures, corrosion, and mechanical stress.
You’ll find Stainless Steel 321 Flanges in a variety of industries, including power plants, petrochemical sectors, chemical processing facilities, and high-temperature industrial pipelines. Their unique blend of mechanical strength, corrosion resistance, and heat tolerance makes them a reliable choice for long-lasting performance. These flanges offer durable, cost-effective, and trustworthy solutions for essential industrial, structural, and engineering needs.







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