In the heart of Manama’s thriving industrial sector, Ahmer Steel has built a reputation for reliability and expertise, particularly as a trusted supplier of high-grade materials. We are proud to specialize in High Carbon Steel C55 sheets and plates, offering a product known for its exceptional durability and strength. Our commitment is to provide local industries with robust steel solutions that meet the most demanding specifications, supporting the growth and integrity of projects across Bahrain and beyond with quality you can depend on.
High Carbon Steel C55 is defined by its specific chemistry, which typically includes around 0.55% carbon, contributing directly to its notable hardness and wear resistance. This composition results in impressive mechanical properties, including a high tensile strength and a good level of toughness. While it is less malleable than lower-carbon steels, it excels in applications where the material must withstand significant stress, abrasion, and heavy loads without deforming, making it a workhorse in demanding environments.
| 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 inherent strength of C55 steel makes it an ideal choice for a wide array of critical applications. You will often find it used in the manufacturing of heavy-duty springs, high-strength wires, and durable blades for agricultural and industrial machinery. It is also extensively used for creating robust forging dies, machine parts like gears and shafts, and components within the automotive and tool-making industries, where its resistance to wear and ability to maintain a sharp edge are highly valued for long-term performance.
Ahmer 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 Manama, Bahrain.
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