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There is no doubt that CK45 is an alloy tool steel that has excellent mechanical properties and versatility. It usually comprises 0.42-2.50 % carbon, 0.50-0.80 % manganese, 0.17-0.37% silicon, 0.50-0.80 % chromium, and small amounts of phosphorus and sulfur. Round bars made out of CK45 alloy tool steel are usually forged, meaning the steel is shaped while still malleable and heated during forming.

The strength and hardness of CK45 alloy tool steel round bars are undoubtedly one of their most important advantages. Its medium carbon content contributes to its high tensile strength, allowing it to withstand heavy loads and resist deformation thanks to its high tensile strength. Manganese enhances the steel’s hardenability, making it suitable for a wide range of heat treatment processes to achieve the desired hardness. Round bars with good wear resistance are ideal for friction and abrasion applications, such as gears, shafts, and machinery components, which affect friction and abrasion.

It is also important to note that CK45 alloy tool steel round bars have excellent toughness, which means that they are capable of absorbing energy and absorbing impacts without fracturing under pressure. When a material is subjected to dynamic and high-stress conditions, such as sudden loads or shocks, this property becomes crucial, as the material is subjected to high loads and shocks. Combining carbon and alloying elements in CK45 round bars ensures their durability and reliability in demanding applications due to the variety of carbon and alloying elements.

Additionally, round bars made of the alloy tool steel CK45 can be easily machined, which makes them a highly versatile material. As a result of shaping, cutting, and forming, it is possible to create intricate components. With their excellent machinability, CK45 round bars are ideal for applications such as tooling, dies, and precision parts that require precise dimensions and intricate designs, which makes them suitable for tooling, fails, and precision parts.

As a result of heat treatment, the mechanical properties of CK45 alloy tool round steel bars can be improved. Heat treatment methods can achieve specific hardness, strength, and toughness levels. The quenching process increases the hardness of steel by rapidly cooling it, whereas the tempering process reduces brittleness and improves toughness. Depending on the heat treatment process, round bars can be customized to meet specific requirements of specific applications.

There are many advantages to using CK45 alloy tool steel round bars, such as their high strength, toughness, and wear resistance. As a result, these bars are used in the automotive, machinery, and tooling industries. Having a medium carbon content and alloying elements, they can be used in demanding environments due to their mechanical properties, which make them suitable for challenging environments. Due to their versatility and ability to be machined and heat treated, CK45 round bars are a reliable and flexible solution for various applications, as they can be machined and heat treated to multiple requirements.


CK45 Steel Round Bar Specification

Product name

CK45 forged steel round bar


DIN 2391 EN10305

Wall Thickness


Out Diameter



ST 44 ST 52

Steel Grade

20# 45# 16Mn ST 45 ST 52


cuttable length, or random length as customer demand

CK45 Steel Mechanical Property at 20oC for Forged parts in Normalized condition

Diameter mm




Tensile Strength Mpa




Yield Strength Mpa




Elongation %







Impact Charpy J







ck 45 allpy tool steel forged steel

Applications & Uses of Stainless Steel Round Bars

  • The sugar industry uses round bars for a variety of purposes.
  • In the power industry, round bars are commonly used.
  • Shipbuilding is one of the industries that use types of metal bars.
  • This is a round bar that is used in mechanical and plant engineering applications.
  • It is widely used in the food, beverage, and dairy industries.
  • It is a round bar that is used in oil and gas plants.
  • In the field of process instrumentation, round bars are used. is a leading supplier, stockist, manufacturer & exporter of SS Black Round Bar Manufacturer, Supplier, Stockist & Exporter from India. Get in touch with us for the Best rates & Availability Of 630 Round Bars & Other Grades.

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