Cold Rolled Steel Round Bar Tolerances

Below is a chart for reference on hot rolled bar tolerances.

Cold rolled steel round bar tolerances.

The cold reduction of the bar results in significantly improved mechanical properties with a smooth surface finish to close tolerances. Most cold finished bars are produced by cold drawing oversize hot rolled bars through a die. The cold working of the bar likewise improves machinability usually rated at 76. Standard tolerances for cold rolled steel bar stock usually choosing material thickness is one of the first steps a designer takes when starting a project.

Northlake produces and stocks a diverse range of cold finished round steel bars. Precision shafting ground to a tolerance finer than a human hair 888 278 4682. 1018 cold roll bars have a higher tensile and yield strength compared to hot rolled bars. 1018 cold rolled steel round bars have a smooth dark grey oiled surface and accurate dimensions throughout.

The cross sectional area of the hot rolled bar is cold reduced resulting in accurate size smooth surface increased mechanical properties and machinability. Specified sizes rounds or squares over under out of round or square machining allowance minimum stock removal to 5 16 included 0 005 0 005 0 008 0 016. With one of the largest size and length capabilities in the industry we produce sizes from 0 158 4mm through 16 round and lengths up to 75. If the bar is 1 5 thick x 3 5 wide the width tolerance of 0 006 will be the tolerance for the thickness as well which is 0 006.

1018 is a low carbon steel with good case hardening qualities. Width governs the tolerances both width and thickness for rectangle bars. Cold finished carbon steel bar tolerances all tolerances in inches to the minus. 15 5 17 4 303 304 316 321 416 cold finish.

0 008 0 008 0 012 over 7 8 to 1 incl. We work with nominal thicknesses so it s important to know the thickness tolerance on the material you chose in order to know if the final product will be suitable for your application. Sizeinches maximum of carbon range0 28 or less maximum ofcarbon rangeover 0 28 to0. 0 0625 to 0 3125 excl 0 001.