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Home > Alloy Steel> ASTM A335 Gr P91 Seamless Pipe
The ASTM A335 Gr P91 Seamless Pipe is mainly made from alloy steel, containing chromium (8–9%), molybdenum (0.85–1.05%), vanadium (0.18–0.25%), along with small amounts of carbon, manganese, and nitrogen. It boasts a tensile strength of around 585–720 MPa and a yield strength close to 415 MPa, ensuring excellent mechanical durability, creep resistance, and high-temperature performance. This alloy is known for its outstanding toughness, weldability, and thermal stability, making it ideal for high-pressure and high-temperature applications in power plants and various industrial processes.
| 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 |
| Grade | C % | Mn % | P % | S % | Si % | Cr % | Mo % |
|---|---|---|---|---|---|---|---|
| P91 | 0.08-0.12 | 0.30-0.60 | 0.020 max | 0.010 max | 0.20 -0.50 | 8.00 – 9.50 | 0.85 – 1.05 |
| Grade | Tensile Strength, MPa | Yield Strength, MPa | Elongation, % |
|---|---|---|---|
| P91 | 585 min | 415 min | 20 min |
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Choosing ASTM A335 Gr P91 Seamless Pipe from Iris Pipes and Tubes ensures superior corrosion resistance, excellent thermal conductivity, high strength, and long-lasting performance. Our commitment to quality and precision makes our pipes and tubing ideal for demanding industrial applications.
Iris Pipes and Tubes is the largest supplier of ASTM A335 Gr P91 Seamless Pipe in Alexandria, Egypt. We offer premium-quality, corrosion-resistant pipes and tubing ideal for marine, chemical, and industrial applications, with our reliable delivery and customized solutions to meet diverse client needs.
Yes, custom sizes are available for ASTM A335 Gr P91 Seamless Pipe to meet specific requirements. These pipes can be tailored for various industrial applications. For more details, contact us at sales@irispipes.com.
You’ll find ASTM A335 Gr P91 Seamless Pipe widely utilized in industries that require materials with high strength, heat resistance, and durability. It’s particularly suited for power generation facilities, including boilers, superheaters, and heat exchangers, thanks to its superior creep and thermal resistance. In the petrochemical and chemical sectors, it’s commonly used for pipelines, pressure vessels, and process piping that handle high-temperature fluids. This seamless pipe is also essential in refineries, oil and gas plants, and industrial machinery, where reliability, long-term performance, and resistance to high-temperature corrosion are crucial. Its mechanical properties and heat resistance make it a go-to choice for demanding applications that prioritize safety and operational efficiency.
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