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Cold Drawn Octagons, Flats, Rectangles

Cold drawn steel is drawn steel being processed at room temperature, which requires additional pressure to shape the steel. While the steel must pass through the die multiple times to achieve the required shape and size, this process improves the end product’s strength, yield, and surface finish. Also, cold drawn steel can be manufactured to more precise measurements and dimensional tolerances than other forms of steel. Cold drawn specialty shaped bars, such as flat, rectangle, and octagon bars, have sharper corners and edges and superior flatness and straightness.

Cold drawn steel also produces a smooth, polished finish, which makes these specialty shaped bars ideal for applications in which aesthetic appeal is desirable.

cold drawn square steel bar

Specialty Shape Applications

Flat steel bars are long, rectangular-shaped steel bars. They are cost-effective to manufacture and extremely versatile. Because of their excellent strength and superior flatness and straightness, cold drawn flat and rectangle steel bars are widely used for construction applications. Also, they display excellent mechanical properties and very good formability, which makes them suited for common welding, bending, and machining applications.  

Octagon steel bars are eight-sided bars that offer similar benefits and advantages attributed to hex steel bars. Like hex bars, octagon steel bars are measured across flats and offer excellent weight-bearing characteristics.

Because of its enhanced mechanical properties, tight dimensional tolerances, improved strength, and superior finish, cold drawn specialty bars are used across numerous industries, including:

  • Automotive
  • Construction
  • Home Appliances
  • Furniture
  • Fitness Equipment
  • Office Equipment
  • Power Generation
  • Aerospace
  • Oil and Gas
  • Water Treatment
  • Chemical Processing
  • Marine
  • Medical

Common applications of cold drawn flat, rectangle, and octagon steel bars include:

  • Building Frames
  • Plates
  • Latches
  • Gates
  • Grill Works
  • Windows
  • Fixtures
  • Shafts
  • Mounting Plates
  • Machinery Parts
  • Construction Equipment
  • Liners
  • Pipes
  • Rack Systems
  • Sprockets
  • Gears
  • Washers
  • Bolts
  • Fittings
  • Screws
  • Component Parts
  • Axles
  • Shafts
  • Tooling

Grades and Sizes of Specialty Bar

Eaton Steel Bar Company supplies cold drawn specialty shaped bars, such as flat/rectangular and octagonal bars. Specialty steel bars can be manufactured according to the customer demand, with fixed thickness, width and lengths.  If you require a flat, rectangle, or octagon steel bar, contact Eaton Steel for more information.

What are the benefits to cold drawn specialty shape steel bar?

Because of its physical properties and aesthetic appeal, cold drawn steel can be found in many consumer products used daily. This carbon steel alloy is easily formed, machined, fabricated, and welded, and it is typically used for parts requiring cold forming, such as crimping, swaging, or bending. Cold drawn steel is ideal for long products, like shafting and structural parts, as well as consumer products that require an aesthetic finish.

This process allows cold drawn steel to have an increased yield and tensile strength compared to other types of steel. The following are some characteristic and benefits of cold drawn steel.




Tighter dimensional tolerances and improved dimensional consistency with each bar

Reduces machining losses

Improved surface finish

Improves quality and aesthetic appeal while reducing surface machining

Improved straightness capability

Facilitates ease of automatic bar feeding

Increased mechanical properties, including hardness and both tensile and yield strength

Can reduce the need for hardening

Improved machinability and productivity

Enables higher machining feeds and speeds with improved machined finishes

Improved formability

Reduces loss of mechanical and creep strength

Minimizes stock removal

Improves equipment performance and tool life

Increases cost effectiveness

Optimizes machinability and reduces yield loss