Cold finished steel bars are typically produced as turned bars or cold drawn bars. Both methods use hot rolled bars as their raw material.
Turning hot rolled bars is a cold machining process, which removes the surface of the hot rolled bars, improving their dimensional control while removing superficial features of the hot rolled bars which may be detrimental to the surface of the parts produced. Typical applications include near net shape warm and cold forgings for gears and shafts, oil and water well shafting and other products which demand a defect free surface. Eaton Steel Bar Company via our sister company Hercules Cold Drawn Steel is able to provide ¾ through 9 rough turned and turned and polished.
Cold drawing hot rolled bars is accomplished by pulling (drawing) a bar through a die which is smaller than the incoming hot rolled size. The cold working process improves the dimensional tolerances of the bar, the straightness, the surface appearance as well as enhancing the physical properties of the steel. All Eaton Steel cold drawn bars are also produced with our proprietary surface inspection equipment. Eddy current, roto – bar testing or mag testing are all available and used as required. The modification of the ultimate tensile strength, the yield strength and elongation of the bars assists byimproving machinability and chip formation.
Cold finished bars are commonly classified in the following ASTM specifications:
- ASTM A 29
- ASTM A 108
Eaton Steel Bar Company provides turned rounds and cold drawn rounds, squares and hexagons in sizes ranging from 1/4” through 9”. With over 10,000 climate controlled racks in our Taylor Distribution Center we are able to supply quality product just-in-time to your door.