What are the common grades of Bright Drawn Steel Bar?

As a seasoned supplier of Bright Drawn Steel Bar, I've had the privilege of witnessing the diverse needs and applications of this remarkable material across various industries. In this blog, I'll delve into the common grades of Bright Drawn Steel Bar, shedding light on their unique properties, applications, and advantages.

Understanding Bright Drawn Steel Bar

Before we explore the grades, let's briefly understand what Bright Drawn Steel Bar is. Bright Drawn Steel Bar is a cold-finished steel product that undergoes a series of processes, including cold drawing, turning, and polishing. This process enhances the surface finish, dimensional accuracy, and mechanical properties of the steel bar, making it suitable for a wide range of applications.

Common Grades of Bright Drawn Steel Bar

1. EN8 Steel Bar

EN8 is one of the most commonly used grades of Bright Drawn Steel Bar. It is a medium carbon steel with good tensile strength and wear resistance. EN8 steel bars are heat treatable, which means they can be hardened and tempered to achieve specific mechanical properties.

• Properties: EN8 steel has a carbon content of around 0.40 - 0.45%, which gives it a good balance of strength and ductility. It has a tensile strength of approximately 580 - 750 MPa and a yield strength of around 320 - 440 MPa.
• Applications: EN8 steel bars are widely used in general engineering applications, such as shafts, axles, bolts, and studs. They are also suitable for agricultural machinery, automotive components, and construction equipment.
• Advantages: The heat treatability of EN8 steel allows for customization of its mechanical properties, making it a versatile choice for various applications. It also has good machinability, which reduces production costs.

2. EN9 Steel Bar

EN9 is another popular grade of Bright Drawn Steel Bar. It is a medium carbon steel with slightly higher carbon content than EN8, which gives it increased strength and wear resistance.

• Properties: EN9 steel has a carbon content of around 0.50 - 0.60%, resulting in a higher tensile strength of approximately 620 - 800 MPa and a yield strength of around 350 - 480 MPa.
• Applications: EN9 steel bars are commonly used in applications where higher strength and wear resistance are required, such as gears, sprockets, and machine parts. They are also suitable for agricultural implements and mining equipment.
• Advantages: The increased carbon content in EN9 steel provides better wear resistance and hardness, making it ideal for applications subject to high stress and abrasion. It also has good fatigue resistance, which extends the service life of the components.

3. EN19 Steel Bar

EN19 is a high - strength alloy steel grade of Bright Drawn Steel Bar. It contains chromium, molybdenum, and manganese, which enhance its strength, toughness, and hardenability.

• Properties: EN19 steel has excellent mechanical properties, with a tensile strength of up to 1100 MPa and a yield strength of around 900 MPa. It has good impact resistance and can withstand high - stress applications.
• Applications: EN19 steel bars are used in critical engineering applications, such as aircraft components, high - performance automotive parts, and heavy - duty machinery. They are also suitable for applications requiring high torque transmission, such as shafts and couplings.
• Advantages: The alloying elements in EN19 steel provide superior strength and toughness, making it suitable for demanding applications. It can be heat treated to achieve a wide range of hardness levels, allowing for customization according to specific requirements.

4. EN24 Steel Bar

EN24 is a high - strength alloy steel similar to EN19 but with a different chemical composition. It contains nickel, chromium, and molybdenum, which contribute to its excellent strength, toughness, and hardenability.

• Properties: EN24 steel has a very high tensile strength, typically ranging from 900 - 1200 MPa, and a yield strength of around 700 - 900 MPa. It has good ductility and impact resistance, even at low temperatures.
• Applications: EN24 steel bars are used in high - stress applications, such as gears, shafts, and crankshafts in automotive and aerospace industries. They are also suitable for heavy - duty machinery and tooling.
• Advantages: The combination of nickel, chromium, and molybdenum in EN24 steel provides exceptional strength, toughness, and hardenability. It can be easily machined in the annealed condition and then heat treated to achieve the desired mechanical properties.

Choosing the Right Grade for Your Application

Selecting the appropriate grade of Bright Drawn Steel Bar depends on several factors, including the application requirements, load conditions, and environmental factors. Here are some considerations to keep in mind:

• Strength Requirements: If your application requires high strength and wear resistance, grades like EN9, EN19, or EN24 may be more suitable. For general engineering applications with moderate strength requirements, EN8 can be a cost - effective choice.
• Machinability: Some grades, such as EN8, have better machinability than others. If machining is a significant part of your production process, choosing a grade with good machinability can reduce production time and costs.
• Heat Treatability: If you need to customize the mechanical properties of the steel bar, consider grades that are heat treatable, such as EN8, EN9, EN19, and EN24. Heat treatment can significantly enhance the strength, hardness, and wear resistance of the bar.

Our Product Range

As a supplier of Bright Drawn Steel Bar, we offer a wide range of grades and sizes to meet the diverse needs of our customers. Whether you are looking for 20mm Bright Round Bar, 8mm Bright Bar, or any other size or grade of Bright Drawn Steel Bar, we have you covered.

We source our steel bars from reputable manufacturers and ensure that they meet the highest quality standards. Our team of experts can assist you in selecting the right grade and size for your application, providing technical support and guidance throughout the process.

Contact Us for Procurement

If you are interested in purchasing Bright Drawn Steel Bar for your project, we invite you to contact us for a detailed discussion. Our sales team is ready to answer your questions, provide quotes, and assist you in making the right choice. We are committed to providing high - quality products, competitive prices, and excellent customer service.

References

• "Steel Grades and Their Applications" - A comprehensive guide to different steel grades and their uses in various industries.
• "Mechanical Properties of Metals" - A technical resource on the mechanical properties of different metals, including steel.