Nestled in the heart of Manama’s industrial landscape, Niazi Stainless stands as a trusted partner for premium steel solutions, offering a dependable supply of Stainless Steel 321 pipes. We understand that your projects demand reliability, which is why our inventory is built on quality and consistency. Whether you’re in heavy industry or precision engineering, our team is dedicated to providing the exact specifications you need, ensuring your operations run smoothly and your infrastructure is built to last with confidence.
| Standard | ASTM A312, A358 / ASME SA312, SA358 |
| Outside Diameter | 6.00 mm OD up to 914.4 mm OD, Sizes up to 24″ NB available Ex-stock, OD Size Steel Tubes available Ex-stock |
| Thickness | 0.3mm – 50 mm, SCH 5, SCH10, SCH 40, SCH 80, SCH 80S, SCH 160, SCH XXS, SCH XS |
| Type | Seamless / ERW / Welded / Fabricated Pipes |
| Form | Round, Square, Rectangular, Oval, Hydraulic Etc |
| Length | Single Random, Double Random & Required Length |
| End | Plain End, Beveled End, Treaded |
| Outside Finish | 2B, No.4, No.1, No.8 Mirror Finish for Stainless Steel Pipes, Finish as per customer Requirements |
| Grade | C | N | Ni | Si | P | S | Mn | Cr | TI | |
|---|---|---|---|---|---|---|---|---|---|---|
| SS 321 | Min | – | – | 9.00 | – | – | – | – | 17.0 | 5(C+N) |
| max | 0.08 | 0.10 | 12.00 | 1.00 | 0.045 | 0.030 | 2.00 | 19.0 | 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 % |
Contact us to get a quick quote for your requirement.
The strength of Stainless Steel 321 comes from its thoughtful composition, which includes chromium and nickel for fundamental corrosion resistance, along with a key addition of titanium. This titanium element works to stabilize the material against the damaging effects of sensitization, particularly during welding. The result is a pipe that maintains excellent mechanical properties, including good ductility and high strength, even when exposed to high temperatures, making it a resilient choice for challenging environments.
Corrosion resistant to high-temperature oxidation. Available in various sizes, typically from 1″ to 6″, with wall thicknesses ranging from 1.5mm to 5mm. It is ideal for structural and architectural applications requiring a polished, aesthetic appearance.
Highly resistant to intergranular corrosion and oxidation. Sizes range from 1/8″ to 24″ in diameter, with wall thicknesses from 1mm to 12mm. Suitable for high-temperature service and applications requiring high pressure.
Excellent resistance to oxidation and corrosion. Commonly produced in sizes from 1″ to 24″ in diameter, with wall thicknesses from 2mm to 10mm and used in construction and pipelines for moderate pressure and temperature conditions.
Corrosion resistant with enhanced strength for large diameter applications. Typically available in sizes from 12″ to 60″ diameter with wall thicknesses up to 20mm. It is ideal for high-pressure and high-temperature applications in the oil and gas industry.
Offers superior resistance to high-temperature oxidation and corrosion. Standard sizes range from 1/8″ to 12″ in diameter, with wall thicknesses from 1mm to 10mm. They are commonly used in various industrial and structural applications.
Corrosion resistance with good high-temperature stability. Available in sizes from 1″ to 24″ in diameter, with wall thicknesses ranging from 1.5mm to 12mm. Suitable for a variety of applications, including chemical and petrochemical industries.
Niazi Stainless is a leading supplier, and stockist of high-quality Stainless Steel 317 Pipes in Manama, Bahrain. Our products are widely used in various applications, and we are committed to delivering excellent service, resulting in high customer satisfaction. Our unique finishing techniques further distinguish us in the stainless steel industry. We are dedicated to consistently providing superior products and effectively meeting our customer’s needs.
You’ll find Stainless Steel 321 pipes hard at work in sectors where heat and corrosion are constant challenges. They are particularly well-suited for high-temperature applications like expansive heat exchanger systems, intricate refinery piping, and the demanding exhaust ducts of aircraft engines. Their reliability also makes them a preferred material for chemical processing equipment and various components in the food processing industry, proving their versatility and durability across a wide range of critical applications.







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