What is round steel?

What is round steel?

Round steel refers to a solid long steel bar with a circular cross-section. Its specifications are expressed in diameter in millimeters (mm). For example, "50mm" means round steel with a diameter of 50 mm.

1. Classification by process

Round steel is divided into three types: hot rolled, forged and cold drawn. The specifications of hot-rolled round steel are 5.5-250mm. Among them: small round steel of 5.5-25mm is mostly supplied in straight strips and bundles, and is commonly used as steel bars, bolts and various mechanical parts; round steel larger than 25mm is mainly used to manufacture mechanical parts, seamless steel pipe blanks, etc. 

2. Classification by chemical composition

According to the carbon content, it is divided into: low carbon steel, medium carbon steel and high carbon steel

3. The materials of round steel are divided into:

Q195, Q235, 10#, 20#, 35#, 45#, Q215, Q345, 12Cr1Mov, 15CrMo, 304, 316, 20Cr, 40Cr, 20CrMo, 35CrMo, 42CrMo, 40CrNiMo, GCr15, 65Mn, 50Mn, 50Cr, 3Cr2W8V, 20CrMnTi, 5CrMnMo, etc.

Calculation method of theoretical weight of round steel: 0.00617×diameter×diameter

For example:

How many kilograms per meter of 14mm round steel: 0.00617×14×14=1.20932kg

Editor: Lucas

Mail: lucas@yangtzesteel.com