When it comes to the steel industry, understanding the differences between cold rolled, cold drawn, and hot rolled steel is essential. These terms refer to various manufacturing processes that impact the properties and applications of the end products. Each type of steel has its unique characteristics, benefits, and suitable uses, making it crucial to choose the right kind based on your project requirements.
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Cold Rolled Steel
Steel processing utilizes various techniques and temperatures. One method is cold rolling, where steel is passed through rollers to achieve a specific thickness at temperatures below its recrystallization point. This process ensures that the steel retains its physical properties without being melted, resulting in a material with high tensile strength and precision. Cold rolled steel often requires multiple passes through the rollers, allowing for a more polished and consistent thickness, making it ideal for applications like home appliances and furniture.
Cold Drawn Steel vs. Cold Rolled Steel
Similarly, cold drawn steel also undergoes processing at room temperature, yet it produces long shapes such as rods or wires rather than flat products. This is accomplished through a drawing process that elongates the heated steel into its final form via a die. Cold drawn steel shares characteristics with cold rolled steel, including high tensile strength and a smooth surface finish, although it often incurs higher costs due to multiple draws to achieve desired specifications.
Hot Rolled Steel vs. Cold Rolled Steel
In contrast to cold rolled steel, hot rolled steel is processed at significantly higher temperatures, which induces changes in shape during cooling. This process typically results in thicker sections with less uniformity, which may not be ideal for projects requiring consistent thickness. While hot rolled steel is more malleable and cost-effective due to fewer production steps, it is less strong and has a rougher finish, making it suitable for applications like rail tracks and structural beams.
When selecting the appropriate type of steel, consider factors such as cost, strength, production processes, and the final appearance. A thorough understanding of cold rolled, cold drawn, and hot rolled steel will assist you in making informed choices for your projects.
Cold Finished Round Steel –Cold Drawn/Rolled
Cold Finished Round Steel (Cold Drawn Steel - CDS and Cold Roll Steel - CRS) is characterized by its precise dimensional accuracy and superior surface finish compared to hot-rolled products. This type of steel tends to exhibit higher tensile and yield strength along with tighter tolerances, making it beneficial for applications that require stringent specifications.
TYPICAL OPERATIONS AND APPLICATIONS USING COLD FINISHED BARS
Cold drawn bars are invaluable in numerous applications such as:
- Screw machines
- CNC lathes
- CNC mills
- Rotary transfer machining
- Hydraulic fittings
- Gears
- Bushings
- Fasteners
- Cylinders
- Pipe fittings
Size Capabilities
Common dimensions for cold finished products include:
- Flats: Thickness: 1/8” through 5” Widths: 1/8” through 14”
- Squares: from 1/8” through 5”
- Hexagons: from 1/8” through 4”
- Special Profiles And Shapes: from 1/8” through 4”
Tolerances for Cold Finished Round
Typical size variations include:
Up to 3/4” = .002”
Over 3/4” to 1-1/2” = .003”
Over 1-1/2” to 2-1/2” = .004”
Over 2-1/2” to 3-1/8” = .005”
Straightness Tolerances for Cold Finished Round
Specifications for straightness include:
Less than 5/8” x 5/8” = +/- 3/16” in 10ft
5/8” x 5/8” and over = +/- 1/8” in 10ft
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AVAILABLE LENGTHS:
Available lengths include 2ft, 4ft, 6ft, and customized random lengths up to 12ft, with specific tolerances.
Full Service
We offer in-house tooling and die production along with related services, ensuring high-quality outcomes for your projects.
Cross Sectional Dimensions (Profile & Diameter, Thickness, Width)
A brief overview of standard tolerances and dimensions.
Material Selection
Our capabilities include the production of cold drawn steel in a variety of grades:
Carbon Steels
Available in multiple grades suited for various applications.
Alloy Steels
Customizable options in different alloy compositions.
Tool Steel and High Speed Steels
Offering comprehensive tool steel grades for precision engineering.
Stainless Steels
Available in various series including 300, 400, and Nitronic grades.
If you require further information about cold rolled round bar, please feel free to reach out.
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