DOM Tubing

O.D. Size Range	O.D. Inches		I.D. Inches
O.D. Size Range	Over	Under	Over	Under
Up to 0.500	0.004	0.000
0.500- 1.669, incl.	0.005	0.000	0.000	0.005
1.700-2.009, incl.	0.006	0.000	0.000	0.006
2.100-2.499, incl.	0.007	0.000	0.000	0.007
2.500-2.899, incl.	0.008	0.000	0.000	0.008
2.900-3.299, incl.	0.009	0.000	0.000	0.009
3.300-3.699, incl.	0.010	0.000	0.000	0.010
3.700-4.009, incl.	0.011	0.000	0.000	0.011
4.100-4.499, incl.	0.012	0.000	0.000	0.012
4.500-4.899, incl.	0.013	0.000	0.000	0.013
4.900-5.299, incl.	0.014	0.000	0.000	0.014
5.300-5.549, incl.	0.015	0.000	0.000	0.015
5.550-5.999, incl.	0.010	0.010	0.010	0.010
6.000-6.499, incl.	0.013	0.013	0.013	0.013
6.500-6.999, incl.	0.015	0.015	0.015	0.015
7.000-7.499, incl.	0.018	0.018	0.018	0.018
7.500-7.999, incl.	0.020	0.020	0.020	0.020
8.000-8.499, incl.	0.023	0.023	0.023	0.023
8.500-8.999, incl.	0.025	0.025	0.025	0.025
8.500-8.999, incl.	0.028	0.028	0.028	0.028
9.500-9.999, incl.	0.030	0.030	0.030	0.030
10.000-10.999, incl.	0.034	0.034	0.034	0.034
11.000-11.999, incl.	0.035	0.035	0.035	0.035
12.000-12.999, incl.	0.037	0.037	0.037	0.037
The ovality shall be within the above tolerance except when the wall thickness is less than 3% of the O.D.. In such cases, the additional ovality shall be as follows, but the mean diameter shall be within the specified tolerance:
		Additional Ovality Tolerance		Additional Ovality Tolerance
O.D. Inches		Inch	O.D. Inches	Inch
Up to 2 incl.		0.010	Over 7 to 8 incl.	0.040
Over 2 lo 3 incl.		0.015	Over 8 to 9 incl.	0.045
Over 3 lo 4 incl.		0.020	Over 9 to 10 incl.	0.050
Over 4 lo 5 incl.		0.025	Over 10 to 11 incl.	0.055
Over 5 lo 6 incl.		0.030	Over 11 to 12 incl.	0.060
Over 6 lo 7 incl.		0.035	Over 12 to 12.5 incl.	0.065