In the dynamic industrial landscape of Addis Ababa, Desta Steel stands as a trusted manufacturer and supplier, dedicated to fueling progress with exceptional materials. We specialize in providing robust High Carbon Steel C55 sheets and plates, engineered to meet the rigorous demands of Ethiopia’s growing manufacturing and construction sectors. Our commitment is to deliver not just steel, but reliability and strength, ensuring your projects are built on a foundation of unwavering quality and local expertise.
High Carbon Steel C55 is defined by its specific composition, primarily featuring a higher carbon content that gives it a distinct edge in strength and wear resistance. This carefully balanced alloy results in a material that is notably harder and less ductile than milder steels. These mechanical properties make it exceptionally resilient against abrasion and capable of maintaining its integrity under significant stress, perfect for applications where durability is non-negotiable and failure is not an option.
| Specification | ASTM A830/ASME SA830 |
| Thickness | 2-600mm |
| Width | 4200-11000mm |
| Length | 3000-18000mm |
| Finish | Hot rolled plate (HR) |
| Grade | C | Mn | P | S | Si | Cr | Mo | Ni | Cr+Mo+Ni |
| C55 | 0.52-0.6 | 0.60-0.90 | ≤ 0.045 | ≤ 0.045 | ≤ 0.4 | ≤ 0.4 | ≤ 0.1 | ≤ 0.4 | ≤ 0.63 |
| Mechanical properties a at room temperature in the quenched and tempered condition (+QT) | |||
| Diameter d mm | ≤ 16 | 16-40 | 40-100 |
| Thickness t mm | < 8 | 8-20 | 20-60 |
| Yield Strength Mpa | ≥550 | ≥490 | ≥420 |
| Tensile Strength Mpa | 800-950 | 750-900 | 700-850 |
| Elongation, % | ≥12 | ≥14 | ≥15 |
| Reduction of area ,% | ≥30 | ≥45 | ≥40 |
| C55 EN 10083-2 Number:1.0535 | Comparision of steel grades | |
| JIS G 4051 | S 55 C | |
| DIN 17200 | C 55 | |
| NFA 33-101 | AF70-C 55 | |
| UNI 7846 | C 55 | |
| BS 970 | 070 M 55 | |
| UNE 36011 | C 55 k | |
| SAE J 403-AISI | 1055 | |
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
The toughness of C55 steel finds its purpose in demanding applications where everyday mild steel simply wouldn’t hold up. It is the preferred choice for manufacturing high-strength components like heavy-duty springs, robust gears, and durable cutting blades for industrial machinery. You’ll also find it in construction as wear-resistant plates for mining equipment and in the fabrication of tools and parts that must endure constant impact and friction, making it a backbone material for heavy industry and advanced engineering projects.
Desta 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 Addis Ababa, Ethiopia.
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