Dom Mechanical Steel Tube Tolerances

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Cold Drawn Round Welded & Drawn Over Mandrel

Diameter Tolerances

OD Size Range	Wall % of OD	OD, Inches		ID, Inches
OD Size Range	Wall % of OD	Plus	Minus	Plus	Minus
Up-.500 0.500-1.699 1.700-2.099	All	.004	.000
	All	.005	.000	.000	.005
	All	.006	.000	.000	.006
2.100-2.499 2.500-2.899 2.900-3.299	All	.007	.000	.000	.007
	All	.008	.000	.000	.008
	All	.009	.000	.000	.009
3.300-3.699 3.700-4.099 4.100-4.499	All	.010	.000	.000	.010
	All	.011	.000	.000	.011
	All	.012	.000	.000	1.012
4.500-4.899 4.900-5.299 5.300-5.549	All	.013	.000	.000	.013
	All	.014	.000	.000	.014
	All	.015	.000	.000	.015
5.550-5.999	Under 6	.010	.010	.010	.010
5.550-5.999	6 to 7¹/₂	.009	.009	.009	.009
6.000-6.499	Under 6	.013	.013	.013	.013
6.000-6.499	6 to 7¹/₂	.010	.010	.010	.010
6.500-6.999	Under 6	.015	.015	.015	.015
6.500-6.999	6 to 7¹/₂	.012	.012	.012	.012
7.000-7.499	Under 6	.018	.018	.018	.018
7.000-7.499	6 to 7¹/₂	.013	.013	.013	.013
7.500-7.999	Under 6	.020	.020	.020	.020
7.500-7.999	6 to 7¹/₂	.015	.015	.015	.015
8.000-8.499	Under 6	.023	.023	.023	.023
8.000-8.499	6 to 7¹/₂	.016	.016	.016	.016
8.500-8.999	Under 6	.025	.025	.025	.025
8.500-8.999	6 to 7¹/₂	.017	.017	.017	.017
9.000-9.499	Under 6	.028	.028	.028	.028
9.000-9.499	6 to 7¹/₂	.019	.019	.019	.019
9.500-9.999	Under 6	.030	.030	.030	.030
9.500-9.999	6 to 7¹/₂	.020	.020	.020	.020
10.000-10.999	Under 6	.034	.034	.034	.034
10.000-10.999	6 to 7¹/₂	.022	.022	.022	.022
11.000-11.999	Under 6	.035	.035	.035	.035
11.000-11.999	6 to 7¹/₂	.025	.025	.025	.025
12.000-12.999	Under 6	.036	.036	.036	.036
12.000-12.999	6 to 7¹/₂	.027	.027	.027	.027
13.000-13.999	Under 6	.037	.037	.037	.037
13.000-13.999	6 to 7¹/₂	.029	.029	.029	.029
14.000-15.000	Under 6	.038	.038	.038	.038
14.000-15.000	6 to 7¹/₂	.030	.030	.030	.030

Wall Tolerances

Wall Thickness, Inch	Incl. .375 to .875 OD	Over .875 to 1.875 OD	Over 1.875 to 3.750 OD	Over 3.750 to 15.000 OD
.028 & 035	+.002	+.002	+.002
.028 & 035	-.002	-.002	-.002
.049	+.002	+.002	+.002
.049	-.002	-.003	-.003
.065	+.002	+.002	+.002	+.004
.065	-.002	-.003	-.003	-.004
.083	+.002	+.002	+.003	+.004
.083	-.002	-.003	-.003	-.005
.095	+.002	+.002	+.003	+.004
.095	-.002	-.003	-.003	-.005
.109	+.002	+.002	+.003	+.005
.109	-.003	-.004	-.003	-.005
.120	+.003	+.002	+.003	+.005
.120	-.003	-.004	-.003	-.005
.134		+002	+003	+005
.134		-.004	-.003	-.005
.148		+.002	+.003	+.005
.148		-.004	-.003	-.005
.165		+.003	+.003	+.005
.165		-.004	-.004	-.006
.180		+.004	+.003	+.006
.180		-.004	-.005	-.006
.203		+.004	+.004	+.006
.203		-.005	-.005	-.007
.220		+.004	+.004	+.007
.220		-.006	-.006	-.007
.238		+.005	+.005	+.007
.238		-.006	-.006	-.007
.259		+.005	+.005	+.007
.259		-.006	-.006	-.007
.284		+.005	+.005	+.007
.284		-.006	-.006	-.007
.300		+.006	+.006	+.008
.300		-.006	-.006	-.008
.320		+007	+007	+008
.320		-.007	-.007	-.008
.344		+.008	+.008	+.009
.344		-.008	-.008	-.009
.375			+009	+009
.375			-.009	-.009
.400			+.010	+.010
.400			-.010	-.010
.438			+.011	+.011
.438			-.011	-.011
.480			+.012	+.012
.480			-.012	-.012
.531			+.013	+.013
.531			-.013	-.013
.563			+.013	+.013
.563			-.013	-.013
.580			+.014	+.014
.580			-.014	-.014
.600			+.015	+.015
.600			-.015	-.015
.625			+.016	+.016
.625			-.016	-.016
.650				+.017
.650				-.017

Straightness Tolerances

.030" in any 3 ft. of length up to 7.500" OD
.060" in any 3 ft. of length over 7.500" OD

Tabulated tolerances can be applied simultaneously to only two of three
cross-sectional dimensions, i.e., ODxWall, ODxID or IDxWall.
ID Tolerances apply only to tube specified ODxID or lDxWall
Tolerances are ASTM-A-519 modified.

The information and data presented herein are typical or average values and are not a guarantee of maximum or minimum values. Applications specifically suggested for material described herein are made solely for the purpose of illustration to enable the reader to make his own evaluation and are not intended as warranties, either express or implied, of fitness for these or other purposes.