Adinox Overseas is a reputed manufacturer and exporter of high-quality Stainless Steel 321H Flanges , widely used in high-temperature and corrosive industrial applications. These flanges are fabricated in accordance with ASTM A182 F321 specifications and designated under the UNS S32100 standard. Stainless Steel 321 is a titanium-stabilized austenitic alloy that provides exceptional resistance to intergranular corrosion after exposure to high temperatures. This alloy is a perfect choice for flanged connections used in thermal, petrochemical, and aerospace applications where durability, temperature tolerance, and corrosion resistance are critical.
Our range of SS 321H Flanges is extensively used in industries such as petrochemical, oil & gas, heat exchangers, and power generation, where resistance to high-temperature oxidation and corrosion is essential. The increased carbon content in 321H provides excellent strength at elevated temperatures while still maintaining good weldability and ductility. This makes ASTM A182 F321H Flanges suitable for pressure vessels and piping systems in harsh operational environments.
As a trusted exporter and stockist, Adinox Overseas ensures that each 321H Stainless Steel Flange is produced following strict quality control procedures and international standards. We provide complete material traceability along with mill test certificates to assure customers of genuine, compliant products. Our flanges are available in multiple types such as weld neck, slip-on, blind, threaded, socket weld, and lap joint, catering to various industrial applications.
At Adinox Overseas, we prioritize prompt delivery, competitive pricing, and technical support to serve our clients with unmatched service and product satisfaction. Our large inventory and customized flange solutions make us a reliable partner for projects of any scale. Whether you need SS 321H flanges for offshore platforms, chemical processing, refinery units, or thermal power stations, we are equipped to meet your specific requirements efficiently and professionally.
| Specification | ASTM A182 / ASME SA182 |
|---|---|
| Dimension Standard | ANSI/ASME B16.5, B16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, etc. |
| Standard | ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, etc. |
| Size | 1/2" (15 NB) to 48" (1200 NB) |
| Class / Pressure | 150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64 etc. |
| Flange Face Type | Flat Face (FF), Raised Face (RF), Ring Type Joint (RTJ) |
| DIN Flanges | DIN 2527, 2566, 2573, 2576, 2641, 2642, 2655, 2656, 2627, 2628, 2629, 2631, 2632, 2633, 2634, 2635, 2636, 2637, 2638, 2673 |
| JIS Flanges | JIS B2220 5K, JIS B2220 10K, JIS B2220 16K, JIS B2220 20K |
| BS Flanges | BS4504 PN 6, PN 10, PN 16, PN 25, PN 40, PN 64, PN 100, PN 160, PN 250, BS 10, BS Table D, E, F, H |
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N |
|---|---|---|---|---|---|---|---|---|---|
| SS 321H | 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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