1. Overview of carbon steel round bars

Carbon steel round bars are alloy materials composed of carbon, manganese, silicon and other elements. They are usually used to make parts, bearings, shipbuilding, automotive machinery, etc.

2. Grade classification of carbon steel round bars

Carbon steel round bars can be divided into many grades according to different uses and properties. The following is the commonly used grade classification of carbon steel round bars:

1. 45# carbon steel round bar

The main components of 45# carbon steel round bar are carbon and silicon, with moderate hardness, and can be used to manufacture high-quality mechanical parts and engineering machinery.

2. 20# carbon steel round bar

The main components of 20# carbon steel round bars are carbon, manganese and silicon. They have moderate hardness and high strength. They can be used to manufacture high-strength mechanical parts and engineering machinery.

3. 35# carbon steel round rod

The main components of 35# carbon steel round bar are carbon and manganese. It has high strength and hardness and is widely used in manufacturing mechanical parts and bearings.

4. 50# carbon steel round rod

The composition of 50# carbon steel round rods includes carbon and silicon. It has moderate hardness and can be used to manufacture high-quality mechanical parts.

5. 60# carbon steel round bar

The main components of 60# carbon steel round bar are carbon, silicon and manganese. It has high hardness and wear resistance and is often used to manufacture friction parts and wear-resistant parts.