Cold Rolled Steel Round Bar Tolerances

Tolerances stainless bars size tolerances hot rolled rounds and squares size tolerance inches out of round specified size over under out of square inches section inches1 over 5 16 to 7 16 incl 2 0 006 0 006 0 009 over 7 16 to 5 8 incl 2 0 007 0 007 0 010 over 5 8 to 7 8 incl.

Cold rolled steel round bar tolerances.

1018 cold rolled steel round bars are an excellent candidate for most processing techniques. The cross sectional area of the hot rolled bar is cold reduced resulting in accurate size smooth surface increased mechanical properties and machinability. Sizeinches maximum of carbon range0 28 or less maximum ofcarbon rangeover 0 28 to0. 1018 is a low carbon steel with good case hardening qualities.

Width governs the tolerances both width and thickness for rectangle bars. The cold working of the bar likewise improves machinability usually rated at 76. 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. 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.

0 008 0 008 0 012 over 7 8 to 1 incl. 1018 cold rolled steel round bars have a smooth dark grey oiled surface and accurate dimensions throughout. Steel bars 1 2 cold finished carbon bars cold finished bars are produced from special bar quality hot rolled bars by cold drawing turning or grinding or by a combination of these methods. 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.

15 5 17 4 303 304 316 321 416 cold finish. Precision shafting ground to a tolerance finer than a human hair 888 278 4682. Cold finished carbon steel bar tolerances all tolerances in inches to the minus. 1018 cold roll bars have a higher tensile and yield strength compared to hot rolled bars.

Below is a chart for reference on hot rolled bar tolerances. 0 0625 to 0 3125 excl 0 001. Most cold finished bars are produced by cold drawing oversize hot rolled bars through a die. 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.