Adam Stainless is your go-to manufacturer and supplier of Stainless Steel 321H Flanges right here in Canberra, Australia. We pride ourselves on delivering high-performance flange solutions that excel in applications where heat resistance and mechanical strength are crucial. Our expertise lies in crafting stainless steel products that can withstand the toughest industrial conditions, and our SS 321H flanges are no exception—they meet international quality standards with ease. These flanges are perfect for high-temperature environments, offering strong creep resistance and dependable performance when it matters most. With a commitment to customer satisfaction, precision engineering, and timely delivery, Adam Stainless is here to support a variety of industries across Australia with reliable stainless steel solutions.
Our Stainless Steel 321H Flanges are made from a robust austenitic stainless steel alloy, featuring 17–19% chromium, 9–12% nickel, and a higher carbon content than standard 321, which enhances their high-temperature strength and creep resistance. Thanks to titanium stabilization, SS 321H flanges resist intergranular corrosion even after welding, making them ideal for long-term exposure to elevated temperatures. Typically, these flanges boast a tensile strength of around 515 MPa and a yield strength of about 205 MPa. Manufactured in accordance with ASTM A182 specifications, they are meticulously machined to ensure compatibility, pressure handling, and long-lasting reliability.
| 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 Adam 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. Adam 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.
You’ll find SS 321H Flanges commonly used in high-temperature service applications, including petrochemical processing, oil and gas systems, power generation plants, exhaust manifolds, and heat exchanger piping. In Canberra’s expanding industrial scene, Adam Stainless provides these flanges for projects that require secure, corrosion-resistant connections that hold up under extreme heat and pressure.
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