Home > Stainless Steel 321H Pipes
Yaman Steel is a well-respected manufacturer and supplier based in Mumbai, India, specializing in high-quality Stainless Steel 321H Pipes that are perfect for high-temperature and pressure applications. These pipes are crafted using advanced manufacturing techniques and rigorous quality control measures, ensuring they meet international standards and deliver reliable performance. The Stainless Steel 321H Pipes from Yaman Steel are specifically designed to provide enhanced strength even at elevated temperatures. The company caters to various industries, including power generation, petrochemicals, oil and gas, refineries, and heavy engineering, offering durable stainless steel piping solutions with prompt delivery.
These Stainless Steel 321H Pipes are made with a blend of chromium (17–19%), nickel (9–12%), and are stabilized with titanium, featuring a higher carbon content compared to standard 321. This increased carbon enhances tensile strength and creep resistance at high temperatures. The titanium stabilization helps prevent carbide precipitation, which ensures resistance to intergranular corrosion during extended heat exposure. When proper fabrication practices are followed, these pipes provide excellent oxidation resistance, mechanical stability, and reliable weldability.
| Pipe Standard | ASTM A312 ASME SA312 / ASTM A358 ASME SA358 |
| Pipe Dimension | ANSI/ASME B36.19M, ANSI/ASME B36.10M |
| Pipe Sizes | 1 / 2″ NB – 24″ NB |
| Pipe 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 |
| Steel Pipe Manufacturing Process | Seamless / Welded / ERW / Fabricated / CDW / 100% X Ray Welded |
| Stainless Steel Pipe Shapes | Hydraulic, Round, Rectangle, Square, Hex, Honed |
| Stainless Steel Pipe Schedule | SCH 5, SCH10, SCH 40, SCH 80, SCH 80S, SCH 160, SCH XXS, SCH XS |
| Pipe Ends | Half Hard, Soft, Hard, Quarter Hard, Spring Hard |
| Delivery Condition | Annealed and Pickled, Polished, Bright Annealed, Cold Drawn |
| Outside Finish | 2B, No.4, No.1, No.8 Mirror Finish for Stainless Steel Pipes, Finish as per customer Requirements |
| Value Added Services | Cutting, Beveling, Polishing, Threading, Destructive, Non Destructive, Ultrasonic Testing |
| 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 % |
Yaman Steel is the largest manufacturer and exporter of Pipe, Fittings, Flanges in Mumbai, India, known for delivering high-quality products to clients across the globe. With state-of-the-art manufacturing facilities and a team of skilled professionals, the company ensures flanges with superior strength, durability, and reliability that meet international standards. Yaman Steel offers a wide range of sizes, grades, and specifications, catering to industries such as oil and gas, petrochemical, power, and water treatment. For inquiries and orders, contact us at sales@pipefittingsflanges.com.
Stainless Steel 321H Pipes are commonly used in applications that demand high-temperature strength and corrosion resistance. Typical applications include superheaters, boilers, heat exchangers, and high-temperature process piping. They find extensive use in power plants, petrochemical facilities, oil and gas refineries, and chemical processing industries. Additionally, these pipes are well-suited for thermal reactors and pressure systems that operate under sustained heat. Their superior creep strength makes Stainless Steel 321H Pipes an excellent choice for long-term service in extreme temperature conditions.
