1. Cold-drawn round steel (also called cold-drawn round steel, plain round steel) is a high-precision round steel. The material undergoes a "quenching and tempering" process and can be directly used to make shafts without further processing. Ordinary round steel is the common round steel used in construction. It is supplied in a "normalized" heat treatment state, and both its dimensional accuracy and material are of a standard level.

2. Cold-drawn steel allows for local buckling of the cross-section, thus fully utilizing the load-bearing capacity after buckling; hot-rolled steel does not allow for local buckling of the cross-section.

3. The causes of residual stress in hot-rolled and cold-rolled steel are different, resulting in significant differences in their cross-sectional distribution. The residual stress distribution in the cross-section of cold-formed thin-walled steel is bending-type, while the residual stress distribution in the cross-section of hot-rolled or welded steel is membrane-type.

4. Hot-rolled steel has a higher free torsional stiffness than cold-rolled steel, so hot-rolled steel has better torsional resistance than cold-rolled steel.

Time：22/05/2026 17:19:39

Answers

• 
  Differences between Cold-rolled round bar and Ordinary Round bar？ 22/05/2026 05:19:17
• 
  What causes cold-drawn cracking of 45 steel round bar? 21/05/2026 16:38:20
• 
  In some applications, are there alternatives to galvanized steel sheets that are more corrosion-resistant and have a similar cost? 20/05/2026 10:40:40
• 
  When importing steel to Southeast Asia, what size container is the most cost-effective? 20/05/2026 03:32:14
• 
  What are the essential steel performance indicators to consider when selecting materials? 17/05/2026 16:16:35