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C45 Carbon Steel

C45 Carbon Steel

C45 Carbon Steel Plates

C45 carbon steel :

C45 carbon steel is a type of Alloy carbon steel. C45 steel is a medium carbon steel with a carbon content of around 0.45%. Carbon steels are iron and carbon alloys with trace amounts of additional elements such as manganese, silicon, and sulphur.

Because of its high strength, hardness, and wear resistance, C45 is widely employed in a variety of industrial applications. It has a good toughness-to-machinability ratio, making it suitable for parts and components requiring great strength and durability. Shafts, gears, axles, bolts, studs, and machine parts are some of the most popular applications for C45 carbon steel.

It should be noted that C45 is only one classification for this type of steel. Other grades with identical chemical compositions and qualities may exist, depending on the regional or international standards in use.

The composition of C45 carbon steel typically adheres to the following chemical composition guidelines:

  • Carbon (C): 0.42% – 0.50%
  • Silicon (Si): 0.17% – 0.37%
  • Manganese (Mn): 0.50% – 0.80%
  • Phosphorus (P): maximum 0.035%
  • Sulfur (S): maximum 0.035%


C45 carbon steel has the following physical properties:

Density: C45 carbon steel has a density of around 7.85 g/cm3 (0.284 lb/ in3).

Melting Point: C45 carbon steel has a melting point of around 1420-1460°C (2588-2660°F).

Thermal Expansion: C45 carbon steel has a modest coefficient of thermal expansion, which means that it expands and contracts with temperature changes. The actual coefficient varies slightly based on the steel’s composition and processing.

Electrical Conductivity: C45 carbon steel is generally regarded as a poor electrical conductor.

Magnetic properties: C45 carbon steel is ferromagnetic, which means it has magnetic properties and can be attracted to magnets.

Hardness: C45 carbon steel has a hardness grade of about 160-180 HB. This hardness value represents its resistance to indentation and wear.

Strength: C45 carbon steel has good tensile and yield strength qualities, making it suitable for a variety of industrial applications.

It is vital to note that these physical attributes are common to C45 carbon steel. Actual values may differ depending on the material’s manufacturing processes, heat treatment, and other factors.


Carbon steel C45 comes in a variety of shapes, each customized to specific uses and manufacturing processes. The following are some examples of C45 carbon steel :

  1. Round bars – C45 carbon steel is frequently supplied in the form of round bars. These cylindrical bars have a consistent diameter throughout their length and are widely used for shafts, axles, bolts, and other high-strength components.


  1. Flat Bars – Flat bars with a rectangular cross-section can be made from C45 carbon steel. Flat bars are frequently utilized for structural purposes, machinery parts, and tooling.


  1. Plates: C45 carbon steel plates are flat, rectangular-shaped sheets that are thicker than 6mm. Plates are commonly employed in the manufacturing of heavy-duty machinery, equipment, and industrial structures.


  1. Sheets: C45 carbon steel sheets are comparable to plates but have a thickness of less than 6mm. They are frequently utilized in applications that require less weight and greater mobility.


  1. Forgings: Using heat and pressure, C45 carbon steel may be forged into a variety of forms and sizes. Forgings have high strength and mechanical qualities, making them ideal for important components in the machinery, automotive, and other industries.


  1. Wire Rods: C45 carbon steel wire rods are cylindrical bars that are smaller in diameter than round bars. They are commonly utilized in high tensile strength applications and are frequently further processed into wire for specific uses.


These forms of C45 carbon steel grades are versatile and can be further processed, machined, or treated to satisfy specific needs. The form chosen is determined by the intended application and the manufacturing procedures involved.


ALLOY CARBON STEEL are stockiest; supplier and manufactures of carbon steel, alloy steel. We have experience of more than 50 years in iron and steel industries

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C45, EN8, EN9, EN19, EN24, EN31,EN36C, EN41B, EN47, EN353, IS2062, 42Crmo4, HCHCR, OHNS, D2, D3, H-11, H-13,M2, M35, M42, M48,1.2714, SKD-11, P20, P20+S, P20+Ni, P20+Ni+HH, SAE 4140, SAE4340, SAE 8620, 16MNCR5, 20MNCR5, C35, C40, C50, C60, CK45, 40C8, 45C8, 55C8, C55MN75, SAE 52100, S40C,S355J2G3.



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