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Home > Alloy Steel > Alloy Steel T91 Tubing
Ojas Pipes and Tubes stands out as a top manufacturer and supplier of Alloy Steel T91 Tubing, proudly based in Kolkata, India. Renowned for its impressive strength, durability, and ability to perform under high temperatures, T91 tubing is a ferritic-martensitic alloy steel that finds its place in power generation and industrial boiler systems. Crafted to comply with ASTM A213 and other international standards, these tubes are perfect for high-pressure and high-temperature scenarios. Ojas delivers meticulously engineered T91 tubes that boast excellent dimensional accuracy, surface finish, and mechanical strength. With a commitment to quality and timely delivery, Ojas Pipes and Tubes caters to a diverse array of sectors, including energy, petrochemicals, and refineries.
Alloy Steel T91 Tubing is composed of roughly 8–9.5% Chromium, 0.85–1.05% Molybdenum, 0.18% Vanadium, and 0.07–0.13% Carbon, along with trace amounts of Nitrogen and Niobium. This unique blend grants it remarkable high-temperature strength, creep resistance, and oxidation resistance. T91 tubing showcases a minimum tensile strength of about 585 MPa, a yield strength of around 415 MPa, and an elongation of approximately 20%. Thanks to its tempered martensitic microstructure, the tubing retains its mechanical integrity even under extreme heat and pressure, making it an excellent choice for boiler, superheater, reheater, and heat exchanger systems in both thermal and nuclear power plants.
| ASTM A213 T91 Specification & Standard | ASTM A213 T91, ASME SA213 T91 (with IBR Test Certificate) |
|---|---|
| SA 213 Gr T91 Specification | ASTM A213 & ASTM A209 BS/3059/ 90/ Part II/ 620 & 622 DIN/ 17175/ 13CrMo44 DIN/ 17175/ 10CrMo910 DIN/ 17175/ 15Mo3 |
| T91 Steel Tube Sch. & Swg. | 10 Swg., 12 Swg., 14 Swg., 16 Swg., 18 Swg., 20 Swg., 3.6 mm Thk |
| ASTM A213 T91 Tubing Size | 6.35 mm OD to 101.6 mm OD |
| ASTM A213 T91 Pipe Thickness | 3-12mm |
| ASME SA213 Gr T91 Material Origin | European, Japanese, Korean, US, Russian, Indian (Strictly No Chinese Material) |
| Craft | Cold rolled and Cold drawn |
| ASTM A213 T91 Tube Type | Seamless / ERW / Welded / Fabricated |
| SA213 T91 Steel Tube available in Form of | Round, Square, Rectangular, Hydraulic Etc. |
| ASTM SA213 T91 Tube Tolerance | Cold drawn pipe: +/-0.1mm Cold rolled pipe: +/-0.05mm |
| ASME SA213 Grade T91 Tube Length | Standard Double & In Cut length also. |
| ASME SA213 Gr T91 Tube End | Plain End, Beveled End, Treaded |
| ASTM A213 T91 Additional Testing | NACE MR 0175, NACE TM0177, NACE TM0284, HIC TEST, SSC TEST, H2 SERVICE, IBR, etc. |
| Specialized in |
|
| ASME SA213 Grade T91 Tube Application & uses | Seamless Ferritic ASTM A213 T91 Tubing for High-Temperature Service |
| Grade | C≤ | Mn | P≤ | S≤ | Si≤ | Mo |
|---|---|---|---|---|---|---|
| SA213 T91 Composition |
0.07~0.14 |
0.30~0.60 |
0.02 |
0.02 |
0.20~0.50 |
0.85~1.05 |
| Grade | Tensile Strength, MPa | Yield Strength, MPa | Elongation, % | Hardness, HB |
|---|---|---|---|---|
| ASTM A213 T91 Tubing | 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.
When you choose Alloy Steel T91 Tubing from Ojas Pipes and Tubes, you can count on exceptional quality and long-lasting durability. These tubes offer excellent corrosion resistance and high strength, making them perfect for various industrial applications. Our commitment to outstanding service and reliable delivery guarantees customer satisfaction with every order. With extensive expertise in stainless steel products, we provide premium solutions tailored to meet your unique needs.
Ojas Pipes and Tubes, a top supplier of Alloy Steel T91 Tubing in Kolkata, India, offers a comprehensive range of high-quality pipes and tubes for various industrial applications. With an extensive inventory and a commitment to exceptional customer service, they have become the go-to source for stainless steel products in the area.
At Ojas Pipes and Tubes, we specialize in providing custom-sized Alloy Steel T91 Tubing designed to meet your specific requirements. Our expert team is committed to delivering personalized solutions for all your piping and tubing needs. For more details, contact us at sales@ojaspipesandtubes.co.in.
Alloy Steel T91 Tubing is mainly utilized in supercritical and ultra-supercritical boilers, heat exchangers, superheaters, and reheaters within thermal power plants. Its capacity to endure high pressure and temperatures makes it a go-to option for fossil fuel power stations, petrochemical refineries, and industrial steam generators. Additionally, it plays a vital role in process heating systems and high-efficiency turbines, where long-term mechanical reliability is essential. The tubing’s resistance to thermal fatigue, creep deformation, and oxidation guarantees a prolonged service life in challenging environments.
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