Yousef Steel, a prominent steel manufacturer and supplier located in Riyadh, Saudi Arabia, proudly offers top-notch **ASME SA 387 Grade 91 Class 1 and Class 2 sheets and plates**. These products are specifically engineered for **high-temperature, high-pressure applications**. Our advanced **Cr-Mo-V (chromium-molybdenum-vanadium) alloy steel plates** are extensively used in vital sectors like **thermal power generation**, **petrochemical plants**, **refineries**, and **nuclear energy**, where high strength at elevated temperatures, creep resistance, and oxidation resistance are crucial.
These plates are delivered in a **quenched and tempered** state to ensure the necessary mechanical performance and microstructural stability. They are perfect for constructing **steam headers, heat exchangers, pressure vessels, superheaters, and piping systems** in power and chemical processing facilities.
| Standard | ASTM A387 / ASME SA387 |
|---|---|
| Width | 1000mm-3000mm |
| Thickness | 1.0mm – 200mm |
| Production | Hot-Rolled (HR) / Cold-Rolled (CR) |
| Grade | C | Ni | Mn | S | V | Al | Si | Nb | Cr | Mo | Nitrogen | P |
| A387 GR.91 CL.1 & 2 | 0.06-0.15 max | 0.43 max | 0.25-0.66 max | 0.012 max | 0.16-0.27 max | 0.05 max | 0.18-0.56 max | 0.05-0.11 max | 7.90-9.60 max | 0.80-1.10 max | 0.025-0.080 max | 0.025 max |
| Grade | A387 GR.91 CL.1 &2 | |||
| A387 GR.91 CL.1 &2 | Thickness mm | Yield Min Mpa | Tensile Mpa | Elongation Min % |
| t≦50 | 415 | 585-760 | 18 | |
| 50<t≦200 | – | – | – | |
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Yousef Steel is a trusted manufacturer and supplier of high-quality ASME SA 387 Grade 91 Class 1/2 Sheet and Plates in Riyadh, Saudi Arabia. We specialize in premium steel products, including Alloy Steel, Carbon Steel, Mild Steel and Galvanized Steel, with a strong focus on Carbon Steel Sheet and Plates. Our extensive inventory also includes Pipes, Tubes, Flanges, Forged Fittings and Bars. Committed to fast delivery and exceptional customer service, we use only the finest raw materials to ensure superior strength, durability and performance for critical industrial applications. Contact us today for all your ASME SA 387 Grade 91 Class 1/2 Sheet and Plates needs!
Yousef Steel provides SA 387 Gr 91 Cl 1/2 plates in a range of sizes and thicknesses, complete with full traceability and documentation, including **EN 10204 3.1/3.2 certifications**, **ultrasonic testing**, and **third-party inspections** in accordance with project and international code requirements.
Yousef Steel is a leading manufacturer, supplier and exporter of high-quality Carbon Steel, Alloy Steel, Mild Steel and Galvanized Steel products. Our extensive product range includes Pipes, Tubes, Flanges, Pipe Fittings, Forged Fittings, Sheets and Plates, catering to various industries in Riyadh, Saudi Arabia.
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