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DOM OD and ID Tolerances (INCHES)
	Outside Diameter Range	Wall, % of OD	OD				ID
				Over		Under		Over		Under
				inches		inches		inches		inches
	Up to 1.699	All		.005		.000		.000		.005
	1.700 - 2.099	All		.006		.000		.000		.006
	2.100 - 2.499	All		.007		.000		.000		.007
	2.500 - 2.899	All		.008		.000		.000		.008
	2.900 - 3.299	All		.009		.000		.000		.009
	3.300 - 3.699	All		.010		.000		.000		.010
	3.700 - 4.099	All		.011		.000		.000		.011
	4.100 - 4.499	All		.012		.000		.000		.012
	4.500 - 4.899	All		.013		.000		.000		.013
	4.900 - 5.299	All		.014		.000		.000		.014
	5.300 - 5.549	All		.015		.000		.000		.015
	5.550 - 5.999	All		.009		.009		.009		.009
	6.000 - 6.499	All		.010		.010		.010		.010
	6.500 - 6.999	All		.012		.012		.012		.012
	7.000 - 7.499	All		.013		.013		.013		.013
	7.500 - 7.999	All		.015		.015		.015		.015
	8.000 - 8.499	All		.016		.016		.016		.016
	8.500 - 8.999	All		.017		.017		.017		.017
	9.000 - 9.499	All		.019		.019		.019		.019
	9.500 - 9.999	All		.020		.020		.020		.020
	10.000 - 10.250	All		.022		.022		.022		.022

Standard Mill Cut-to-Length Tolerances
	OD Size Inches		At least 48 inches but under 10 feet		10 feet to 24 feet
	5/8 to 3		+/- 3/64 in.		+/- 1/8 in.
	Over 3 to 6		+/- 1/16 in.		+/- 1/8 in.
	Over 6 to 9		+/- 1/8 in.		+/- 1/8 in.
	Over 9 in.		+/- 1/8 in.		+/- 1/8 in.
For each additional 10' or fraction thereof over 24'; an additional allowance of +/- 1/16" should be made. Closer tolerances for lengths under 4' must be developed for quotation.

Additional Ovality Table
	OD Range		Add'l Ovality Tolerances
	OD up to 2"		.010"
	OD over 2" to 3"		.015"
	OD over 3" to 4"		.020"
	OD over 4" to 5"		.025"
	OD over 5" to 6"		.030"
	OD over 6" to 7"		.035"
	OD over 7" to 8"		.040"
	OD over 8" to 9"		.045"
	OD over 9" to 10"		.050"
	OD over 10"		.055"

* Ovality shall be within the tolerances, except when the wall thickness is less than 3% of the OD. Source: ASTM Standards - A513. When the wall thickness is less than 3% of the OD, an additional ovality tolerance is required. The additional ovality shall be as indicated in the additional ovality table; however, mean OD or ID must be within the minimum and maximum permitted by the tolerance table.

Wall Thickness Tolerances (INCHES)
	Wall Thickness (inches)	OD Size
			3/8 to 7/8		Over 7/8 to 1-7/8		Over 1-7/8 to 3-3/4		Over 3-3/4
	.065		+.002   -.002		+.002   -.003		+.003   -.003		+.004   -.005
	.083		+.002   -.002		+.002   -.003		+.003   -.003		+.004   -.005
	.095		+.002   -.002		+.002   -.003		+.003   -.003		+.004   -.005
	.109		+.002   -.003		+.002   -.004		+.003   -.003		+.005   -.005
	.120		+.003   -.003		+.002   -.004		+.003   -.003		+.005   -.005
	.134				+.002   -.004		+.003   -.003		+.005   -.005
	.148				+.002   -.004		+.003   -.003		+.005   -.005
	.165				+.003   -.004		+.003   -.004		+.005   -.006
	.180				+.004   -.004		+.003   -.005		+.006   -.006
	.203				+.004   -.005		+.004   -.005		+.006   -.007
	.220				+.004   -.006		+.004   -.006		+.007   -.007
	.238				+.005   -.006		+.005   -.006		+.007   -.007
	.259				+.005   -.006		+.005   -.006		+.007   -.007
	.284				+.005   -.006		+.005   -.006		+.007   -.007
	.300				+.006   -.006		+.006   -.006		+.008   -.008
	.320				+.007   -.007		+.007   -.007		+.008   -.008
	.344				+.008   -.008		+.008   -.008		+.009   -.009
	.375				+.012   -.012		+.009   -.009		+.009   -.009
	.400				+.012   -.012		+.010   -.010		+.010   -.010
	.438				+.014   -.014		+.010   -.010		+.011   -.011
	.460				+.016   -.016		+.012   -.012		+.012   -.012
	.480				+.018   -.018		+.012   -.012		+.012   -.012
	.531						+.013   -.013		+.013   -.013
	.563						+.013   -.013		+.013   -.013
	.580						+.014   -.014		+.014   -.014
	.625						+.016   -.016		+.016   -.016
	.650						+.017   -.017		+.017   -.017