Yousef Steel, a prominent steel manufacturer and supplier located in Riyadh, Saudi Arabia, proudly offers top-notch **ASME SA 387 Grade 9 Class 1 and Class 2 sheets and plates**. These products are specifically engineered for high-temperature and high-pressure applications. Crafted from **chromium-molybdenum alloy steel**, these plates are essential in the construction of pressure vessels, boilers, and heat exchangers, especially in the **power generation**, **petrochemical**, and **refining sectors**, where resistance to elevated temperatures is crucial.
These plates are generally supplied in a **normalized and tempered** state, ensuring they deliver optimal mechanical performance, excellent weldability, and strong resistance to long-term thermal degradation.
| Standard | ASTM A387 / ASME SA387 |
|---|---|
| Width | 1000mm-3000mm |
| Thickness | 1.0mm – 200mm |
| Production | Hot-Rolled (HR) / Cold-Rolled (CR) |
| Grade | C | Si | Mn | P | S | Cr | Mo |
| A387 GR.9 CL.2 | 0.15 max | 2.05 max | 0.25-0.66 max | 0.030 max | 0.030 max | 7.90-10.10 max | 0.85-2.10 max |
| Grade | A387 GR.9 CL.2 | |||
| A387 GR.9 CL.2 | Thickness mm | Yield Min Mpa | Tensile Mpa | Elongation Min % |
| t≦50 | 310 | 515-690 | 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.
Common applications include **steam piping, superheaters, reheaters, and pressure vessels** that operate at temperatures exceeding 540°C. Yousef Steel offers SA 387 Gr 9 Cl 1/2 plates in various thicknesses, widths, and lengths, along with optional **EN 10204 3.1/3.2 certification**, **ultrasonic testing**, and **third-party inspection** tailored to project requirements.
ASME SA 387 Grade 9 Class 1 & 2 Sheets and Plates are primarily used under high-temperature and pressure conditions. They are most suitable for boiler, pressure vessel and heat exchanger making due to their high strength and high corrosion resistance. They are used extensively in petrochemical, power generation, oil & gas, and refinery sectors, wherein high-temperature and pressure conditions demand material that is sound and reliable. Their chromium-molybdenum composition renders them a high level of performance in harsh operating conditions.
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.
Copyright 2025 Yousef Steel. All rights reserved
