Steel rolling is a manufacturing process that involves passing metal stock through a pair of rolls in order to output it as flat steel sheets. Steel rolling can be divided into two main processes: hot rolling and cold rolling. The latter is further divided into cold rolling and cold drawing, which are both discussed in further detail below.
It’s important to understand the difference between cold rolled and cold drawn steel in order to choose the best process for your specific unique.
What Is Cold Drawn Steel?
Cold drawn steel, sometimes referred to more broadly as cold finished steel, is passed through a die or several dies at room temperature to help shape the metal into the desired form.
What Is the Cold Drawn Steel Process?
To make cold drawn steel, hot rolled straight bars or hot rolled steel coils are first brought down to room temperature. Once the steel stock cools down, it is passed through a die. Several passes through the die may be required before the steel can be drawn into the final product, typically a bar or wire.
What Are the Benefits of Cold Drawn Steel?
Cold drawn steel properties offer several advantages over those of hot rolled steel. For one, this technique can be used for products requiring more precise measurements since the metal does not change shape during the drawing process. Cold drawn steel also offers high tensile strength and better aesthetics.
What Is Cold Rolled Steel?
Cold rolled steel refers to stock that is rolled at room temperature. Because the material is not subjected to heat, cold rolled steel is stronger and harder than hot rolled steel, though cold rolled steel less malleable.
What Is Cold Rolling?
Cold rolling refers to the process of rolling steel stock to the desired shape and size at room temperature.
Depending on the finished product, an annealing process — which involves treating cold rolled steel with heat — can be used to enhance cold rolled steel properties. Annealing may be done prior to, during, or after the cold rolling process.
What Are Common Cold Rolled Steel Applications?
Cold rolled steel is ideal for use in products that require high precision. Therefore, this process is commonly used for home appliances, metal furniture, and a wide range of construction applications.
Rathbone Precision Metals, Inc. manufactures precision cold drawn and cold rolled steel profiles using a wide array of materials, including carbon steel, free cutting steel, alloy steel, stainless steel, nickel alloys, high temp alloys, and brass and copper alloys.
To learn more about the differences between cold rolled steel and cold drawn steel, or to request a quote for your specific needs, reach out to the team today.