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Home > Alloy Steel > Alloy Steel P91 Pipes
Rithav Pipes and Tubes, located in Delhi, India, stands out as a top manufacturer and supplier of high-performance Alloy Steel P91 Pipes, specifically designed for high-temperature and high-pressure settings. These pipes meet the ASTM A335 Grade P91 standards and are celebrated for their impressive creep strength, oxidation resistance, and structural stability even at elevated temperatures. With a blend of chromium and molybdenum, P91 pipes are perfect for applications in power plants, thermal boilers, superheaters, and refineries. Rithav offers seamless Alloy Steel P91 pipes in various sizes and wall thicknesses, all produced with a strong commitment to ASME and international quality standards.
Alloy Steel P91 Pipes are made up of 8–9.5% chromium, 0.85–1.05% molybdenum, and 0.18–0.25% vanadium, along with carefully controlled amounts of carbon, manganese, niobium, and nickel. These elements work together to provide exceptional high-temperature creep resistance, oxidation resistance, and tensile strength. Typical mechanical properties include a tensile strength of around 585 MPa, yield strength of about 415 MPa, and an elongation of 20%. P91 pipes can handle temperatures reaching up to 650°C (1200°F), making them ideal for long-term use in critical power generation components. They are delivered in a normalized and tempered state to ensure optimal performance and structural integrity.
| ASTM A335 Alloy Steel P91 Pipe Size | : | 1/8NB TO 24NB IN |
| Alloy Steel ASTM A335 P91 Standards | : | ASTM A 335, ASME SA 335, UNS K11522 |
| ASTM A335 P91 Alloy Steel Pipe Type | : | Seamless |
| ASTM A335 Alloy Steel P91 Specialized in | : | Large Diameter Size |
| ASTM A335 Alloy Steel P91 Pipe Outer Dimensions | : | 19.05 – 114.3mm |
| Alloy Steel ASTM A335 P91 Pipe Wall Thickness | : | 2.0 – 14 mm |
| Alloy Steel ASTM A335 P91 Pipe Suppliers Length | : | max 16000mm |
| ASME SA335 P91 Alloy Steel Pipe Schedule | : | Schedule 20 – Schedule XXS (heavier on request) up to 250 thk. |
| ASTM A335 Alloy Steel Pipe Form | : | Round, Square, Rectangular, Hydraulic Etc. |
| Alloy Steel ASTM A335 P91 Pipe Length | : | Single Random, Double Random & Cut Length. |
| ASTM A335 P91 Pipe End | : | Plain End, Beveled End, Treaded |
| C, % | Mn, % | P, % | S, % | Si, % | Cr, % | Mo, % | V, % | N, % | Ni, % | Al, % | Nb, % |
| 0.08-0.12 | 0.3-0.6 | 0.02 max | 0.01 max | 0.2-0.5 | 8.0-9.5 | 0.85-1.05 | 0.18-0.25 | 0.03-0.07 | 0.4 max | 0.04 max | 0.06-0.10 |
| Tensile Strength, MPa | Yield Strength, MPa | Elongation, % | Hardness, HB |
| 585 min | 415 min | 20 min | 250 max |
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Choosing Alloy Steel P91 pipes from Rithav Pipes and Tubes ensures you receive high-quality products that meet industry standards. Our pipes are manufactured using advanced techniques and stringent quality control processes, ensuring exceptional durability and performance. We offer a diverse range of sizes and specifications to suit various applications, particularly in the power generation and petrochemical sectors. Our commitment to timely delivery and excellent customer service means you can rely on us as your trusted supplier for all your alloy steel pipe needs. Experience the difference with Rithav Pipes and Tubes, where quality and reliability are our top priorities.
Rithav Pipes and Tubes, one of the largest suppliers of Alloy Steel P91 Pipes in Delhi, India, offers a comprehensive range of high-quality pipes and tubes suitable for various industrial applications. Their extensive inventory and commitment to exceptional service make them a go-to choice for stainless steel products in the region.
Yes, we offer custom sizes for Alloy Steel P91 Pipes to meet your specific requirements. Our team at Rithav Pipes and Tubes is committed to providing tailored solutions for all your Piping & tubing needs. For more details, contact us at sales@rithavpipesandtubes.co.in.
Alloy Steel P91 Pipes find extensive use in power generation, particularly in supercritical and ultra-supercritical boilers, steam lines, turbines, and heat exchangers, thanks to their remarkable strength and resistance to thermal fatigue. Their ability to maintain stability under extreme temperatures and pressures makes them a go-to choice in petrochemical plants, refineries, and nuclear power facilities. P91 is also utilized in fertilizer plants, chemical processing units, and pressure vessels, where a long service life under aggressive thermal cycling is essential.
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