Home > Alloy Steel P91 Pipes
Yaman Steel has built a solid reputation as a reliable manufacturer and supplier based in Mumbai, India, specializing in high-quality Alloy Steel P91 Pipes designed for high-temperature and high-pressure applications in critical industries. These pipes are crafted from advanced chromium–molybdenum–vanadium alloy steel, utilizing cutting-edge production techniques that adhere to ASTM and ASME standards. Renowned for their remarkable creep strength, oxidation resistance, and long-lasting reliability, Yaman Steel’s Alloy Steel P91 Pipes deliver outstanding performance even in the toughest service environments. With a strong focus on quality control and efficient logistics, the company provides durable piping solutions to both domestic and international markets.
The Alloy Steel P91 Pipes are made from a blend of 9% chromium and 1% molybdenum alloy steel, with carefully controlled amounts of vanadium and niobium added. This specific chemical makeup ensures exceptional creep resistance, high-temperature strength, and excellent protection against oxidation and corrosion. On the mechanical side, these pipes boast high tensile and yield strength, good toughness, and impressive thermal fatigue resistance, making them ideal for extreme operating conditions.
| 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 |
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.
These Alloy Steel P91 Pipes find extensive use in supercritical and ultra-supercritical power plants. They are commonly found in boilers, superheaters, reheaters, headers, and high-temperature steam piping systems. Additionally, these pipes are utilized in refineries, petrochemical plants, and energy facilities where high efficiency, safety, and a long service life under elevated temperatures and pressures are crucial.
Yamam Steel supplies high-quality pipe, fittings and flanges for plumbing, commercial, and industrial applications across Mumbai and beyond.
