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Maria Pipes and Tubes stands out as a top-notch manufacturer and supplier of high-quality Alloy Steel P91 Pipes right in the heart of Kuala Lumpur, Malaysia. These pipes are expertly designed to perform exceptionally well in high-temperature and high-pressure settings, and they’re crafted to meet international standards, ensuring they boast remarkable durability, strength, and precise dimensions. We provide Alloy Steel P91 Pipes in a variety of sizes, wall thicknesses, and specifications, catering to industries like power generation, petrochemicals, oil & gas, and chemical processing. Thanks to our cutting-edge manufacturing technology and rigorous quality control, Maria Pipes and Tubes delivers dependable piping solutions that are built to last in even the toughest applications.
Alloy Steel P91 Pipes are primarily made up of chromium (8–9.5%) and molybdenum (0.85–1.05%), along with a mix of vanadium, niobium, nitrogen, carbon, and carefully controlled amounts of manganese, phosphorus, sulfur, and silicon. This unique blend gives them impressive tensile and yield strength, excellent creep resistance, and outstanding stability at high temperatures. Typically, these pipes have a tensile strength of about 585 MPa and a yield strength of around 415 MPa, along with good elongation for easy formability. The alloy’s exceptional resistance to oxidation and corrosion makes it perfect for long-term use in extreme heat and pressure conditions without sacrificing 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 Maria 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 Maria Pipes and Tubes, where quality and reliability are our top priorities.
Maria Pipes and Tubes, one of the largest suppliers of Alloy Steel P91 Pipes in Kuala lumpur, Malaysia, 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 Maria Pipes and Tubes is committed to providing tailored solutions for all your Piping & tubing needs. For more details, contact us at sales@mariapipes.com.
Alloy Steel P91 Pipes are a go-to choice in industries where top-notch strength and heat resistance are essential. You’ll often find them in high-pressure steam lines, superheaters, reheaters, and boiler tubes in power plants. In the petrochemical and refinery sectors, they’re used to transport hot, corrosive fluids and gases under tough operating conditions. Their ability to handle thermal cycling and resist creep deformation also makes them ideal for chemical processing plants, marine engineering, and oil & gas pipelines. With their unmatched performance in extreme environments, Alloy Steel P91 Pipes are truly the preferred choice for many applications.
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