Adam Stainless is a well-respected manufacturer and supplier of Stainless Steel 321 Flanges located in Canberra, Australia. They provide top-notch flange solutions designed for applications that demand outstanding resistance to heat and corrosion. With a strong focus on precision, reliability, and adherence to global standards, Adam Stainless ensures that their flanges meet the requirements of critical piping systems across various industries. Their SS 321 flanges are particularly suited for high-temperature environments, especially where intergranular corrosion resistance is crucial. Supported by technical know-how and a responsive supply chain, Adam Stainless has earned the trust of engineers, contractors, and fabricators all over Australia.
Stainless Steel 321 flanges consist of an austenitic steel alloy that is composed of 17-19% chromium, 9-12% nickel, and trace amounts of titanium, which usually is 5 times the carbon content. It is added for stabilization, ensuring that there would be no sensitization and no carbide precipitation during welding, making SS 321 ideal for high-temperature applications. It has excellent resistance to corrosion, such as the intergranular type, and adequate oxidation resistance in environments as high as 900°C. Its mechanical properties include a tensile strength of 505-750 MPa, yield strength of 205 MPa, and elongation of 40% in 50 mm to sustain the hostilities under severe conditions.
| 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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The Stainless Steel 321 Flanges from Adam Stainless are crafted from an austenitic stainless steel alloy that’s stabilized with titanium, which helps prevent carbide precipitation during welding. This alloy typically contains 17–19% chromium, 9–12% nickel, and titanium, providing excellent mechanical strength and good creep resistance at temperatures up to 870°C. These flanges generally boast a tensile strength of about 515 MPa and a yield strength of around 205 MPa. Manufactured according to ASTM A182 specifications, Adam Stainless guarantees that each flange is meticulously machined for optimal fit, durability, and performance in high-pressure and high-temperature systems.
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.
These Stainless Steel 321 Flanges find extensive use in heat exchangers, pressure vessels, chemical plants, thermal processing systems, and exhaust manifolds. Their capacity to endure high temperatures and harsh chemical environments makes them particularly ideal for applications in the oil and gas, petrochemical, and power generation sectors. In Canberra’s industrial landscape, Adam Stainless supplies these flanges for both new installations and maintenance projects, ensuring leak-proof performance every time.







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