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What Is Cold Rolled?

Published in Metal Processing 2 mins read

Cold rolling is a manufacturing process used to shape and refine metal. Based on the provided information, cold rolling is a work hardening process used to change the structure of metals.

Understanding the Cold Rolling Process

Unlike hot rolling, which occurs at high temperatures, cold rolling is performed at or near room temperature. This process involves passing metal sheets or strips between rollers under pressure.

Key aspects of cold rolling include:

  • Work Hardening: As the metal is deformed by the rollers at room temperature, its crystalline structure is changed. This makes the metal harder and stronger.
  • Changing Structure: The rolling action elongates grains in the metal, altering its internal structure. This can lead to improved mechanical properties like yield strength and tensile strength.
  • Dimensional Accuracy: Cold rolling typically results in a better surface finish and more precise dimensions compared to hot rolling.

The reference specifically mentions that this process is often used to process stainless steel.

Applications of Cold Rolled Stainless Steel

Due to the enhanced properties achieved through cold rolling, materials like cold rolled stainless steel are valuable in various industries. The reference highlights its use as a raw material in a wide variety of applications, including:

  • Medical equipment and devices
  • Aerospace components
  • Automotive parts

These applications often require materials with high strength, durability, and precise specifications, which cold rolling helps to provide.

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