Stainless Steel 321 Pipe Fittings Manufacturer, Supplier & Exporter in India
Stainless Steel 321 Pipe Fittings from Astromet Steel & Engineering are titanium-stabilized austenitic fittings designed for high-temperature service. The stabilization prevents carbide precipitation, ensuring resistance to intergranular corrosion.
321 fittings perform reliably in elevated temperature environments up to 870°C. They offer excellent oxidation resistance and mechanical stability. These fittings are ideal for thermal cycling applications.
Manufactured as per ASTM A403 WP321 standards, these fittings maintain structural integrity and dimensional accuracy. Quality testing ensures compliance with global standards.
Stainless Steel 321 Pipe Fittings are widely used where heat resistance and corrosion protection are required simultaneously.
Types Of Stainless Steel 321 Pipe Fittings
- Elbow (45°, 90°, 180° – Long Radius & Short Radius)
- Tee (Equal Tee, Reducing Tee)
- Reducer (Concentric & Eccentric)
- Stub End (Short & Long Pattern)
- Cross
- Cap
- Bend
- Union
- Coupling
- Nipple
- Ferrule
Stainless Steel 321 Pipe Fittings Specifications
| SS 321/321H Pipe Fittings Standard | ASTM A403 / ASME SA403 |
|---|---|
| SS 321 & 321H Pipe Fitting Dimensions | ANSI B16.9, B16.25, B16.28, MSS-SP-43, MSS-SP-48, MSS-SP-59 |
| SS 321/321H Buttweld Fittings Schedule | SCH 5S, 10S, 10, 20, 40S, 40, STD, 60, 80S, 80, XS, 100, 120, 140, 160 & XXS |
| Stainless Steel 321/321H Pipe Fittings Bending Radius | R=1D, 2D, 3D, 5D, 6D, 8D, 10D or Custom |
| SS 321-321H Pipe Fittings Size Range | Seamless Butt Weld Fittings : 1/2″ – 10″ Welded Fittings : 1/2″ – 48″ |
| ASTM A403 WP321 / 321H Pipe Fittings Manufacturing process | Push, Press, Forge, Cast, etc. |
| Packing of Products | Wooden Pallet, Canton, Carton / Small Box or as required, or as per Customers Requests |
SS 321 Pipe Fittings Equivalent Grades
| Grade | ASTM | UNS | EN | DIN | JIS |
|---|---|---|---|---|---|
| SS 321 | A403 WP321 | S32100 | 1.4541 | X6CrNiTi18-10 | SUS 321 |
Stainless Steel 321 Pipe Fittings Chemical Composition
| Grade | C | Mn | Si | P | S | Cr | Ni | Mo |
|---|---|---|---|---|---|---|---|---|
| SS 321 | 0.08 | 2.00 | 1.00 | 0.045 | 0.030 | 17.0–19.0 | 9.0–12.0 | — |
321 Stainless Steel Pipe Fittings Mechanical Properties
| Grade | Tensile Strength (MPa) | Yield Strength (MPa) | Elongation (%) | Hardness (HB) |
|---|---|---|---|---|
| SS 321 | ≥ 515 | ≥ 205 | ≥ 40 | ≤ 217 |
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 Pipe Fittings Industrial Applications
- Oil and Gas Industry
- Power Generation
- Construction and Civil Engineering
- Automotive and Manufacturing Industries
- Marine and Shipbuilding
- Food and Beverage Industry
- Chemical and Petrochemical Industries