Cold Rolled Steel Bar Tolerances

1018 has a wide variety of applications.

Cold rolled steel bar tolerances. 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. It is used for parts requiring cold forming such as crimping swaging or bending. More finished surfaces with closer tolerances. Maximum of carbon range 0 28 or less.

Cold rolled steel is essentially hot rolled steel that has had further processing. 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. Cold rolled steel bar has a wide range of beneficial features including. 0 007 0 007 0 010 over 5 8 to 7 8 incl.

C1018 cold finished flat aka crs flat or cold roll flat bar is a steel product with closer dimensional accuracy tolerances and smoother surface finish than hot rolled bar c1018 cold finish flat is a general purpose low carbon steel with good case hardening qualities and is especially suited for cold forming and bending. Tolerances hot rolled carbon and alloy bars size tolerances rounds and squares sec. Up to 1 5 incl. Out of section is the difference between the maximum and minimum diameter or across flats measured at the same cross section.

0 005 0 005 0 008 over 5 16 to 7 16 incl. 1018 cold roll bars conforms to astm a29 a108. Hot rolled steel is used in situations where precise shapes and tolerances are not required. Cold finished carbon steel bar tolerances adminchi1 2019 06 10t14 43 10 05 00.

0 006 0 006 0 009 over 7 16 to 5 8 incl. Width governs the tolerances both width and thickness for rectangle bars. This is 2 per side on re rolled round bar taken from minimum permissible diameter. Maximum of carbon range over 0 28 to 0 55 inclusive.

Tolerances may be specified all plus or all minus but are generally accepted to be all plus. O page 2 specified size size tolerance inches out of round inches over under or square in. Hot rolled products like hot rolled steel bars are used in the welding and construction trades to make railroad tracks and i beams for example. Bars are true and square with well defined edges and corners.

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.