For manufacturers and industrial clients in Kuwait and beyond, Sayed Steel in Safat is the trusted source for exceptional steel components. We are pleased to supply High Carbon Steel C55 sheets and plates, an exceptionally strong and durable grade perfect for high-stress applications. Our team is dedicated to ensuring you receive the right materials, backed by reliable service and technical support. When your project demands resilience and high strength, we deliver.
High Carbon Steel C55 is defined by its specific composition, which includes a higher concentration of carbon, contributing to its notable strength and hardness. In terms of mechanical properties, this steel exhibits high tensile strength and excellent wear resistance, allowing it to withstand significant pressure and abrasive conditions. It is known for retaining its structural integrity even under demanding situations, making it a robust choice for heavy-duty industrial use.
| 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.
In practical terms, this material is often used for components like forging tools, metal-working machinery, and heavy-duty gears. It’s also an excellent choice for industrial knives, springs, and other parts that must endure constant friction and high stress. You’ll often find C55 steel plates in construction equipment, automotive parts, and in the manufacturing of heavy machinery, where enduring strength is not just an advantage, but an absolute necessity for safety and longevity.
Sayed 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 Safat, Kuwait.
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