The Steel Supply Company

Buyers Guide

Standard Diameter Tolerances

Standard Diameter Tolerances

Bar Size Range #2 Piston #2 Chrome .0005/S #2 Chrome .001/S
1-1/2" and under +.0/-.0010" +.0/-.0020" +.0/-.0030"
>1-1/2" to <2-1/2" +.0/-.0015" +.0/-.0020" +.0/-.0030"
2-1/2 to 3" Incl. +.0/-.0020" +.0/-.0020" +.0/-.0040"
Over 3 to 4" Incl. +.0/-.0030" +.0/-.0030" +.0/-.0040"
Over 4 to 6" Incl. +.0/-.0040" +.0/-.0040" +.0/-.0050"
Over 6" +.0/-.0050" +.0/-.0050" +.0/-.0060"

For nonresulpherized steels (steels specified to maximum sulfur limits under 0.08%), or
For steels thermally treated (HY items), the tolerance is increased by .001".

DOM Tubing Tolerances

DOM O.D. Size Range Ovality I.D. Tolerances Available
<2" .010" +.000/-.003" or +.003/-.000"
2.001" < 3.000" .015" +.000/-.003" or +.003/-.000"
3.001" < 4.000" .020" +.000/-.003" or +.003/-.000"
4.001" < 5.000" .025" +.000/-.003" or +.003/-.000"
5.001" < 6.000" .030" +.000/-.003" or +.003/-.000"
6.001" < 7.000" .035" +.000/-.004" or +.004/-.000"
7.001" < 8.000" .040" +.000/-.005" or +.005/-.000"
8.001" < 9.000" .045" +.000/-.005" or +.005/-.000"
9.001" < 10.000" .050" +.000/-.005" or +.005/-.000"
10.001" < 11.000" .055" +.000/-.005" or +.005/-.000"
11.001" < 12.000" .060" +.000/-.006" or +.006/-.000"
12.001" < 13.000" .065" +.000/-.006" or +.006/-.000"
13.001" < 14.000" .070" +.000/-.008" or +.008/-.000"
NOTE: Ovality listed is for DOM Carbon Steel Tubing Only. This chart does not apply to CDSM Tubing. Please call for specifics on ovality and tolerances for CDSM (Seamless).

 

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