Acculam® Tube

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Tubing Tolerances ID & OD (Inside Diameter & Outside Diameter)
Nominal Diameter - Inches	ID Inside Diameter		OD Outside Diameter		vertical line OD horizontal line ID
Nominal Diameter - Inches	Steel Mandrel	Built-up Mandrel
0.125" to 0.749" 0.750" to 1.999" 2.000" to 4.000" 4.001" to 8.000"	± .003" ± .004" ± .008" ± .010"	- - - -	± .005" ± .005" ± .008" ± .025"
			*Turned	*As Wound
8.001" to 12.000" 12.001" to 18.000" 18.001" to 24.000" 24.001" to 48.000"	± .010" ± .030" ± .040" ± .060"	- ± .060" ± .075" ± .090"	± .025" ± .030" ± .035" ± .040"	+ all + all + all + all
*Note: Tubing over 8.000" OD supplied as wound (turned OD quoted on request)

Tubing wall thickness tolerances (concentricity)
Wall Thickness Range	Grades
Wall Thickness Range	XX, XXX Paper Phenolic	LE, Linen Phenolic to .500" ID	LE, Linen Phenolic >500" ID	C, Canvas Phenolic	All Glass Grades G10/FR4, G11/FR5, G5/G9, G7
.010" to .016" .017" to .031" .032" to .062" .063" to .125" .126" to .250" .251" to .500"	± .003" ± .005" ± .006" ± .007" ± .009" ± .011"	- - ± .010" ± .011" ± .013" ± .015"	- - ± .008" ± .009" ± .011" ± .013"	- - - ± .015" ± .020" ± .020"	- ± .006" ± .008" ± .009" ± .011" ± .013"
The tolerances listed are per NEMA Standards and are based on the ± deviation of the actual nominal wall thickness. TIR- Total Indicator Runout is the difference between the lowest wall thickness reading and the highest wall thickness reading of a given tube section. It is the total of the ± tolerances listed in the concentricity table above. Example- a XX tube 1.000" ID by 1.250" OD has a concentricity of ± .007". Thus, the TIR is .014".