In the heart of Kinshasa, Yoane Steel has established itself as a trusted partner for industrial growth, bridging the gap between global quality standards and local demand. We take pride in being your premier manufacturer and supplier of EN 91 steel sheets and plates, providing a foundation of strength and reliability for the critical projects driving progress across the Congo. Our commitment is to deliver not just materials, but dependable solutions backed by deep expertise and a genuine understanding of our region’s unique industrial landscape.
This specific grade, EN 91 steel, is celebrated for its well-balanced composition, primarily a chromium-molybdenum alloy that gives it a distinct edge. This combination results in admirable mechanical properties, including high tensile strength and excellent toughness, even under demanding conditions. It also possesses good hardenability, allowing it to be heat-treated to achieve specific performance characteristics required for heavy-duty applications where both durability and resistance to wear are non-negotiable.
| Standards | ASTM A387 / ASME SA387 |
| Alloy Steel Sheets / Plates Thickness | 6mm to 100mm |
| Alloy Steel Sheets / Plates Width | 1,500mm to 2,500mm |
| Alloy Steel Sheet, Plates Length | 6,000mm to 12,000mm |
| Alloy Steel Sheet, Plates Production | Hot-Rolled (HR) / Cold-Rolled (CR) |
| Heat Treatment | N, Q+T |
| Surface Paint | EP, PE, HDP, SMP, PVDF |
| Value added services for Plates | Waterjet cutting, Plasma cutting, Laser cutting, Bending and mechanical processing, edge preparation, welding, sawing and shearing |
| Hardness | Soft, Hard, Half Hard, Quarter Hard, Spring Hard etc. |
| Types | Sheets, Plates |
| Grade | C | Mn | Si | P | S | Cr | Mo |
| A387 Gr. 91 | 0.05-0.20 | 0.3-0.6 | 0.5 | 0.045 max | 0.03 max | 0.8-1.25 | 0.044-0.65 |
| Tensile Strength | Yield Strengtd (0.2%Offset) | Elongation |
| 205 | 415 | 20 % |
| 2000MM X 1000MM X 3MM | 2000MM X 1000MM X 6MM |
| 2500MM X 1250MM X 4MM | 2500MM X 1250MM X 8MM |
| 3000MM X 1500MM X 3MM | 3000MM X 1500MM X 6MM |
| 3000MM X 1500MM X 4MM | 3000MM X 1500MM X 8MM |
| 2000MM X 1000MM X 5MM | 2500MM X 1250MM X 10MM |
| 2500MM X 1250MM X 3MM | 2500MM X 1250MM X 6MM |
| 4000MM X 2000MM X 3MM | 4000MM X 2000MM X 6MM |
| 2500MM X 1250MM X 5MM | 3000MM X 1500MM X 10MM |
| 2000MM X 1000MM X 4MM | 2000MM X 1000MM X 8MM |
| 4000MM X 2000MM X 4MM | 2000MM X 2000MM X 10MM |
| 3000MM X 1500MM X 5MM | Â |
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
The robust nature of EN 91 sheets and plates makes them indispensable for a wide array of demanding sectors. You will frequently find this material forming the backbone of high-pressure vessels, critical components in power generation plants, and robust structural parts in heavy machinery. Its performance under stress also makes it a preferred choice for the construction of transportation equipment and various industrial frameworks that must withstand significant loads and harsh operating environments, ensuring long-term safety and operational integrity.
Yoane 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 Kinshasa, Congo.
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