Stainless Steel 321 Flanges Manufacturer, Supplier & Exporter in India
Astromet Steel & Engineering manufactures Stainless Steel 321 Flanges specifically designed for high-temperature applications where resistance to intergranular corrosion is essential. Stabilized with titanium, SS 321 flanges prevent chromium carbide precipitation during prolonged exposure to elevated temperatures, ensuring excellent structural integrity and corrosion resistance. These flanges are particularly suitable for systems operating continuously in high-heat environments.
SS 321 flanges offer excellent mechanical strength, creep resistance, and thermal stability, making them ideal for applications involving repeated heating and cooling cycles. Our manufacturing process ensures uniform grain structure and superior pressure-handling capability. The flanges are accurately machined to provide tight sealing and long service life under extreme operating conditions.
These flanges are commonly used in exhaust systems, heat exchangers, refinery pipelines, thermal processing units, power plants, and high-temperature chemical processing equipment. Stainless Steel 321 flanges are preferred wherever temperature resistance and long-term operational reliability are critical.
Types Of Stainless Steel 321 Flanges
- Weld Neck Flange
- Slip On Flange
- Blind Flange
- Socket Weld Flange
- Threaded Flange
- Forged Flange
- OrificeFlange
Stainless Steel 321 Flanges Specifications
| Specifications List | ASTM A182 / ASME SA182 |
|---|---|
| Class / Pressure Rating | 150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64 etc. |
| Size Chart | 1/2″ (15 NB) to 48″ (1200NB) |
| ASTM Standards | ANSI/ASME B16.5, B16.48, BS4504, B 16.47 Series A & B, BS 10, EN-1092, DIN, etc. |
| Standard s | ANSI, ASME, BS, DIN, EN etc. |
SS 321 Flanges Equivalent Grades
| STANDARD | WERKSTOFF NR. | UNS | JIS | EN |
|---|---|---|---|---|
| SS 321 | 1.4541 | S32100 | SUS 321 | X6CrNiTi18-10 |
Stainless Steel 321 Flanges Chemical Composition
| Grade | C | Mn | Si | P | S | Cr | N | Ni | Ti |
|---|---|---|---|---|---|---|---|---|---|
| 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 |
321 Stainless Steel Flanges Mechanical Properties
| 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 % |
Why Choose Astromet Steel & Engineering?
This advanced resistance to intergranular corrosion because of the
- Consistent quality & competitive pricing
- Ready stock & custom fabrication
- International standard compliance
- On-time delivery worldwide
- Complete documentation & certification
Stainless Steel 321 Flanges Usage & Applications
Used in exhaust systems, heat exchangers, refineries, thermal processing units, and high-temperature pipelines.