Filiz Steel, a trusted supplier based in Istanbul, Turkey, proudly offers top-quality **High Carbon Steel C55 sheets and plates** that are perfect for applications demanding enhanced hardness, wear resistance, and strength. C55 is a high carbon steel grade frequently utilized in the production of components that face significant wear or mechanical stress. Renowned for its impressive surface hardness after heat treatment, C55 finds its place in the automotive, tooling, and machinery industries. Filiz Steel supplies C55 plates and sheets in both hot-rolled and cold-rolled forms, complete with mill certification and precise dimensional tolerances to meet the needs of quality-sensitive applications.
High Carbon Steel C55 is composed of roughly 0.52–0.60% Carbon, 0.60–0.90% Manganese, along with trace amounts of Silicon, Sulfur, and Phosphorus. This specific composition enables the steel to achieve remarkable tensile strength and surface hardness following heat treatment processes like quenching and tempering. Generally, the tensile strength of untreated C55 falls between 600–800 MPa, which can be significantly enhanced through appropriate heat treatment. However, due to its elevated carbon content, welding can be challenging and typically requires preheating and post-weld stress relief to prevent cracking.
| 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.
High Carbon Steel C55 Sheets and Plates are used in making cutting tools, blades, springs, gears, shafts and automotive parts due to their high strength and durability. They are also ideal for machine parts, industrial equipment and structural components. Their excellent toughness makes them perfect for agricultural tools, railway tracks and heavy machinery. With superior hardness, easy machinability and wear resistance, these sheets and plates are a reliable choice for various engineering and manufacturing needs.
Filiz 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 Istanbul, Turkey.
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