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Tolerances – Size: Cold Finished

Standard (16/10 Under)
Manufacturing Tolerances
Cold Finished Carbon Steel Bars
COLD DRAWN OR TURNED & POLISHED ROUNDS
undersize variations in inches
Size Range in Inches Max. Carbon Range .28% or less Max. Carbon Range over .28% to .55% incl. Max. Carbon Range to 0.55% incl., Stress Relieved or Annealed After Cold Finishing1 Max. Carbon Range Over .55% or all Grades Quenched & Tempered or Normalized and Tempered Before cold Finishing
1 ½ or under .002 .003 .004 .005
Over 1 ½ to 2 ½, incl. .003 .004 .005 .006
Over 2 ½ to 4, incl. .004 .005 .006 .007
Over 4 to 6, incl. .005 .006 .007 .008
Over 6 to 8, incl. .006 .007 .008 .009
Over 8 to 9, Incl. .007 .008 .009 .010
Over 9 .008 .009 .010 .011
COLD DRAWN HEXAGON
¾ or under .002 .003 .004 .006
Over ¾ to 1 ½, incl. .003 .004 .005 .007
Over 1 ½ to 2 ½, incl. .004 .005 .006 .008
Over 2 ½ to 4, incl. .005 .006 .007 .009
COLD DRAWN SQUARES
¾ or under .002 .004 .005 .007
Over ¾ to 1 ½, incl. .003 .005 .006 .008
Over 1 ½ to 2 ½, incl. .004 .006 .007 .009
Over 2 ½ to 4, incl. .006 .008 .009 .011
COLD DRAWN FLATS
Tolerances for flats apply to thickness as well as width
width in inches
To 2/4 incl. .003 .004 .006 .008
Over ¾ to 1 ½, incl. .004 .005 .008 .010
Over 1 ½ to 3, incl. .005 .006 .010 .012
Over 3 to 4,incl. .006 .008 .011 .016
Over 4 to 6, incl. .008 .010 .012 .020
Over 6 .013 .015
TURNED, GROUND AND POLISHED ROUNDS
COLD DRAWN, GROUND AND POLISHED ROUNDS
undersize variations in inches
Size Range in Inches Turned, Ground and Polished Rounds Cold Drawn, Ground and Polished Rounds
1 ½ and under .001 .001
Over 1 ½ to less than 2 ½ .0015 .0015
2 ½ to 3, incl. .002 .002
Over 3 to 4, incl. .003 .003
Over 4 to 6, incl. .004*
Over 6 .005*

*For nonresulphurized steels (steels specified to maximum sulphur limits under 0.08%) or for steels thermally treated, the tolerance is increased by .001”