Aluminum Tolerances

Round Bars
Alloy(s)		Spec. Diameter, in.	Diameter Tol. (over(+)/under(-))
2011-T3, 2024-T4, 6061(-T6/T651)	Cold Finish	0.125 to 0.374	+/- 0.0015"
2011-T3, 2024(-T351/T4), 6061(- T6/T651)	Cold Finish	0.375 to 0.500	+/- 0.0015"
2011-T3, 2024-T351, 6061-T651, 7075-T7351	Cold Finish	0.501 to 1.000	+/- 0.002"
2011-T3, 2024-T351, 6061-T651, 7075- T651, 7075-T7351	Cold Finish	1.001 to 1.500	+/- 0.0025"
2011-T3, 2024-T351, 6061-T651, 7075- T651, 7075-T7351	Cold Finish	1.501 to 2.000	+/- 0.004"
2011-T3, 2024-T351, 6061-T651, 7075-T651, 7075-T7351	Cold Finish	2.001 to 3.000	+/- 0.006"
2011-T3, 2024-T351, 6061-T651, 7075-T651, 7075-T7351	Cold Finish	3.001 to 3.499	+/- 0.008"
2011-T3, 2024-T351, 6061-T651, 7075-T651, 7075-T7351	Cold Finish	3.500 to 5.000	+/- 0.012"
2024-T351, 6061-T651, 7075-T651, 7075-T7351	Cold Finish	5.001 to 6.000	+/- 0.020"

Straightness Tolerance - Cold Finished Round Bar
Temper		Spec. Diameter, in.	Max. Allowed Deviation from Straight
All except: TX51	Cold Finish	All	0.025 × Measured length, ft.
TX51	Cold Finish	0.500 and over	0.025 × Measured length, ft.
Straightness tolerance will be void once full length is cut

Round Bars
Alloy(s)		Spec. Diameter, in.	Diameter Tol. (over(+)/under(-))
6061-T6511	Extruded	0.125 to 0.249	+/- 0.007"
6061-T6511, 6063(-T5/52)	Extruded	0.250 to 0.499	+/- 0.008"
6061-T6511, 6063-T52, 6262-T6511	Extruded	0.500 to 0.749	+/- 0.009"
6061-T6511, 6063-T52, 6262-T6511	Extruded	0.750 to 0.999	+/- 0.010"
6061-T6511, 6063-T52, 6262-T6511	Extruded	1.000 to 1.499	+/- 0.012"
6061-T6511, 6063-T52, 6262-T6511	Extruded	1.500 to 1.999	+/- 0.014"
2011-T3, 6061-T6511, 6262-T6511	Extruded	2.000 to 3.999	+/- 0.024"
6061-T6511	Extruded	4.000 to 5.999	+/- 0.034"
6061-T6511, 7075-T651	Extruded	6.000 to 7.999	+/- 0.044"
6061-T6511, 7075-T651	Extruded	8.000 to 9.999	+/- 0.064"
6061(-T6/T6511)	Extruded	10.000 to 11.999	+/- 0.074"
6061-T6511	Extruded	12.000 to 13.999	+/- 0.084"
6061(-T6/T6511)	Extruded	14.000 to 15.999	+/- 0.094"
6061-T6511	Extruded	16.000 to 17.999	+/- 0.104"
6061(-T6/T6511)	Extruded	18.000 to 19.999	+/- 0.114"
6061-T6	Extruded	20.000 to 21.999	+/- 0.124"

Metric Round Bar
Alloy(s)		Spec. Diameter, mm	Diameter Tol. (over(+)/under(-))
6060 (metric)	Extruded	From 8 to 18, incl.	+/- 0.22mm
6060 (metric)	Extruded	Over 18 to 25, incl.	+/- 0.25mm
6060 (metric)	Extruded	Over 25 to 40, incl.	+/- 0.30mm
6060 (metric)	Extruded	Over 40 to 50, incl.	+/- 0.35mm

Straightness Tolerance - Extruded Round Bar
Temper		Spec. Diameter, in.	Max. Allowed Deviation from Straight
All except: TX511	Extruded	All	0.0125 × Measured length, ft.
TX511	Extruded	0.500 and over	0.0125 × Measured length, ft.
Straightness tolerance will be void once full length is cut

Square Bar
Alloy(s)		Spec. Square, in.	Square Tol. (over(+)/under(-))
2024-T351	Cold Finish	0.375 to 0.500	+/- 0.002"
2024-T351, 7075-T651	Cold Finish	0.501 to 1.000	+/- 0.0025"
2024-T351, 7075-T651	Cold Finish	1.001 to 1.500	+/- 0.003"
2024-T351	Cold Finish	1.501 to 2.000	+/- 0.005"
2024-T351	Cold Finish	2.001 to 3.000	+/- 0.008"
2024-T351	Cold Finish	3.001 to 4.000	+/- 0.010"
6061-T6511, 6063-T52	Extruded	0.250 to 0.499	+/- 0.008"
6061-T6511, 6063-T52	Extruded	0.500 to 0.749	+/- 0.009"
6061-T6511, 6063-T52	Extruded	0.750 to 0.999	+/- 0.010"
6061-T6511, 6063-T52	Extruded	1.000 to 1.499	+/- 0.012"
6061-T6511, 6063-T52	Extruded	1.500 to 1.999	+/- 0.014"
6061-T6511, 6063-T52	Extruded	2.000 to 3.999	+/- 0.024"
6061-T6511, 6063-T52	Extruded	4.000 to 5.999	+/- 0.034"
6061-T6511, 6063-T52	Extruded	6.000 to 7.070	+/- 0.044"

Straightness Tolerance - Cold Finished Square Bar
Temper		Spec. Height, in.	Max. Allowed Deviation from Straight
All except: TX51	Cold Finish	All	0.025 × Measured length, ft.
TX51	Cold Finish	0.500 and over	0.050 × Measured length, ft.
Straightness tolerance will be void once full length is cut

Straightness Tolerance - Extruded Square Bar
Temper		Spec. Height, in.	Max. Allowed Deviation from Straight
All except: TX511	Extruded	All	0.0125 × Measured length, ft.
TX511	Extruded	0.500 and over	0.0125 × Measured length, ft.
Straightness tolerance will be void once full length is cut

Hex Bar
Alloy(s)		Spec. Across Flats, in.	Across Flats Tol. (over(+)/under(-))
2011-T3	Cold Finish	0.065 to 0.374	+/- 0.002"
2011-T3, 7075-T7351	Cold Finsh	0.375 to 0.500	+/- 0.002"
2011-T3, 2024-T351, 7075-T7351	Cold Finish	0.501 to 1.000	+/- 0.0025"
2024-T351, 7075-T7351	Cold Finish	1.001 to 1.500	+/- 0.003"
2024-T351	Cold Finish	1.501 to 2.000	+/- 0.005"
6061(-T6/T6511)	Extruded	0.250 to 0.499	+/- 0.008"
6061-T6511	Extruded	0.500 to 0.749	+/- 0.009"
6061-T6511, 6262-T6511	Extruded	0.750 to 0.999	+/- 0.010"
6061-T6511, 6262-T6511	Extruded	1.000 to 1.499	+/- 0.012"
6061-T6511	Extruded	1.500 to 1.999	+/- 0.014"

Straightness Tolerance - Cold Finished Hex Bar
Temper		Spec. Across Flats, in.	Max. Allowed Deviation from Straight
All except: TX51	Cold Finish	All	0.025 × Measured length, ft.
TX51	Cold Finish	0.500 and over	0.025 × Measured length, ft.
Straightness tolerance will be void once full length is cut

Straightness Tolerance - Extruded Hex Bar
Temper		Spec. Across Flats, in.	Max. Allowed Deviation from Straight
All except: TX511	Extruded	All	0.0125 × Measured length, ft.
TX511	Extruded	0.500 and over	0.0125 × Measured length, ft.
Straightness tolerance will be void once full length is cut

Rectangle Bar
Alloy(s)		Spec. Thick, in.	Thick Tol. (over(+)/under(-))	Spec. Width, in.	Width Tol. (over(+)/under(-))
2024-T4, 7075- T6	Cold Finish	0.065 to 0.500	+/- 0.002"	0.065 to 0.500	+/- 0.002"
2024(-T351/T4), 7075-T651	Cold Finish	0.501 to 0.750	+/- 0.0025"	0.501 to 0.750	+/- 0.0025"
2024(-T351/T4), 7075-T651	Cold Finish	0.751 to 1.000	+/- 0.0025"	0.751 to 1.000	+/- 0.0025"
2024(-T351/T4), 7075-T651	Cold Finish	1.001 to 1.500	+/- 0.003"	1.001 to 1.500	+/- 0.003"
2024(-T351/T4), 7075-T651	Cold Finish	1.501 to 2.000	+/- 0.005"	1.501 to 2.000	+/- 0.005"
2024(-T351/T4), 7075(-T6/T651)	Cold Finish	2.001 to 3.000	+/- 0.008"	2.001 to 3.000	+/- 0.008"
2024(-T351/T4), 7075-T651	Cold Finish	...	...	3.001 to 4.000	+/- 0.010"
2024-T351, 7075-T651	Cold Finish	...	...	4.001 to 6.000	+/- 0.020"

Straightness Tolerance - Cold Finished Rectangle Bar
Temper		Spec. Thickness, in.	Max. Allowed Deviation from Straight
All except: TX51	Cold Finish	All	0.025 × Measured length, ft.
TX51	Cold Finish	0.500 and over	0.050 × Measured length, ft.
Straightness tolerance will be void once full length is cut

Rectangle Bar
Alloy(s)		Spec. Thick, in.	Thick Tol. (over(+)/under(-))	Spec. Width, in.	Width Tol. (over(+)/under(-))
6061-T6511, 6063(-T5/52)	Extruded	Up thru 0.124	+/- 0.006"	Up thru 0.124	+/- 0.006"
6061-T6511, 6063(-T5/52)	Extruded	0.125 to 0.249	+/- 0.007"	0.125 to 0.249	+/- 0.007"
6061-T6511, 6063(-T5/52)	Extruded	0.250 to 0.499	+/- 0.008"	0.250 to 0.499	+/- 0.008"
6061-T6511, 6063(-T5/52)	Extruded	0.500 to 0.749	+/- 0.009"	0.500 to 0.749	+/- 0.009"
6061-T6511, 6063(-T5/52)	Extruded	0.750 to 0.999	+/- 0.010"	0.750 to 0.999	+/- 0.010"
6061-T6511, 6063(-T5/52)	Extruded	1.000 to 1.499	+/- 0.012"	1.000 to 1.499	+/- 0.012"
6061-T6511, 6063(-T5/52)	Extruded	1.500 to 1.999	+/- 0.014"	1.500 to 1.999	+/- 0.014"
6061-T6511, 6063(-T5/52)	Extruded	2.000 to 3.999	+/- 0.024"	2.000 to 3.999	+/- 0.024"
6061-T6511, 6063-T52	Extruded	4.000 to 5.999	+/- 0.034"	4.000 to 5.999	+/- 0.034"
6061-T6511	Extruded	6.000 to 7.999	+/- 0.044"	6.000 to 7.999	+/- 0.044"
6061-T6511	Extruded	8.000 to 9.999	+/- 0.054"	8.000 to 9.999	+/- 0.054"
6061-T6511	Extruded	...		10.000 to 11.999	+/-0.074"
6061-T6511	Extruded	...		12.000 to 13.999	+/-0.084"

Metric Rectangle Bar
				Spec. Thick, mm
				2mm to 6mm, incl.	Over 6mm to 10mm, incl.	Over 10mm to 18mm, incl.	Over 18mm to 30mm, incl.	Over 30mm to 50mm, incl.
		Spec. Width, mm	Width Tol. (over(+)/under(-))	Thick Tol. (over(+)/under(-))
6060 Metric	Extruded	≥ 10mm to 18mm, incl.	+/- 0.25mm	+/- 0.20mm	+/- 0.25mm	+/- 0.25mm	...	...
6060 Metric	Extruded	Over 18mm to 30mm, incl.	+/- 0.30mm	+/- 0.20mm	+/- 0.25mm	+/- 0.30mm	+/- 0.30mm	...
6060 Metric	Extruded	Over 30mm to 50mm, incl.	+/- 0.40mm	+/- 0.25mm	+/- 0.25mm	+/- 0.30mm	+/- 0.35mm	+/- 0.40mm
6060 Metric	Extruded	Over 50mm to 80mm, incl.	+/- 0.60mm	+/- 0.25mm	+/- 0.30mm	+/- 0.35mm	+/- 0.40mm	+/- 0.50mm
6060 Metric	Extruded	Over 80mm to 120mm, incl.	+/- 0.80mm	+/- 0.30mm	+/- 0.35mm	+/- 0.40mm	+/- 0.45mm	+/- 0.60mm

Straightness Tolerance - Extruded Rectangle Bar
Temper		Spec. Thickness, in.	Spec. Width, in.	Max. Allowed Deviation from Straight
All except: TX511	Extruded	Up thru 0.094	Up thru 1.499	0.050 × Measured Length, ft.
All except: TX511	Extruded	0.095 and over	Up thru 1.499	0.0125 × Measured Length, ft.
All except: TX511	Extruded	All	1.500 and over	0.0125 × Measured Length, ft.
TX511	Extruded	0.500 and over	Over 0.500	0.0125 × Measured Length, ft.
Straightness tolerance will be void once full length is cut

Full Round Edge Rectangle Bar
Alloy(s)		Spec. Thick, in.	Thick Tol. (over(+)/under(-))	Spec. Width, in.	Width Tol. (over(+)/under(-))
6101-T61	Extruded	0.250	+/- 0.008"	1	+/- 0.012"
6101-T61	Extruded	0.250	+/- 0.008"	1.5	+/- 0.014"
6101-T61	Extruded	0.250	+/- 0.008"	2 to 3, incl.	+/- 0.024"
6101-T61(-T65)	Extruded	0.250	+/- 0.008"	4 to 5, incl.	+/- 0.034"
6101-T61(-T65)	Extruded	0.250	+/- 0.008"	6	+/- 0.044"
6101-T61	Extruded	0.375	+/- 0.008"	1.5	+/- 0.014"
6101-T61	Extruded	0.375	+/- 0.008"	2 to 3, incl.	+/- 0.024"
6101-T61	Extruded	0.375	+/- 0.008"	4 to 5, incl.	+/- 0.044"
6101-T61	Extruded	0.375	+/- 0.008"	6	+/- 0.044"
6101-T61	Extruded	0.500	+/- 0.009"	2 to 3, incl.	+/- 0.024"
6101-T61	Extruded	0.500	+/- 0.009"	4 to 5, incl.	+/- 0.034"
6101-T61	Extruded	0.500	+/- 0.009"	6	+/- 0.034"

Straightness Tolerance - Extruded Full Round Edge Rectangle Bar
Orientation	Max. Allowed Deviation from Straight
Flatwise	0.025 × Measured Length, ft.
Edgewise	0.0125 × Measured Length, ft.
Straightness tolerance will be void once full length is cut

Angle
				Spec. Leg Length, in.
				0.250 to 0.624	0.625 to 1.249	1.250 to 2.499	2.500 to 3.999	4.000 to 5.999	6.000 to 8.000
Alloy(s)		Spec. Thick, in.	Thick Tol. (over(+)/under(-))	Leg Tol. (over(+)/under(-))
6061-T6, 6063(-T5/52)	Extruded	Up thru 0.124	+/- 0.006"	+/- 0.010"	+/- 0.012"	...	...	...	...
6061-T6, 6063(-T5/52)	Extruded	0.125 to 0.249	+/- 0.007"	+/- 0.012"	+/- 0.014"	+/- 0.016"	...	...	...
6061-T6, 6063-T52	Extruded	0.250 to 0.499	+/- 0.008"	+/- 0.014"	+/- 0.016"	+/- 0.018"	+/- 0.020"	...	...
6061-T6, 6063-T52	Extruded	0.500 to 0.749	+/- 0.009"	+/- 0.016"	+/- 0.018"	+/- 0.020"	+/- 0.022"	...	...
6061-T6, 6063-T52	Extruded	0.750 to 0.999	+/- 0.010"	+/- 0.018"	+/- 0.020"	+/- 0.022"	+/- 0.025"	+/- 0.030"	...
6061-T6, 6063-T52	Extruded	1.000 to 1.499	+/- 0.012"	+/- 0.021"	+/- 0.023"	+/- 0.026"	+/- 0.030"	+/- 0.035"	...
6061-T6, 6063-T52	Extruded	1.500 to 1.999	+/- 0.014"	+/- 0.024"	+/- 0.026"	+/- 0.031"	+/- 0.036"	+/- 0.042"	+/- 0.050"
6061-T6, 6063-T52	Extruded	2.000 to 3.999	+/- 0.024"	+/- 0.034"	+/- 0.038"	+/- 0.048"	+/- 0.057"	+/- 0.068"	+/- 0.080"
6061-T6, 6063-T52	Extruded	4.000 to 5.999	+/- 0.034"	+/- 0.044"	+/- 0.050"	+/- 0.064"	+/- 0.078"	+/- 0.094"	+/- 0.110"
6061-T6, 6063-T52	Extruded	6.000 to 7.999	+/- 0.044"	+/- 0.054"	+/- 0.062"	+/- 0.082"	+/- 0.099"	+/- 0.120"	+/- 0.140"
6061-T6, 6063-T52	Extruded	8.000 to 9.999	+/- 0.054"	+/- 0.064"	+/- 0.074"	+/- 0.100"	+/- 0.120"	+/- 0.145"	+/- 0.170"
Radius Tolerance
For sharp corners (90°) = +/- 2°. For non sharp corners = +/- 10% of specified radius.

Architectural Channel
				Leg Length Tolerances, in. (over(+)/under(-))
Alloy(s)		Spec. Thick, in.	Thick Tol. (over(+)/under(-))	0.250 to 0.624	0.625 to 1.249	1.250 to 2.499	2.500 to 3.999
6063-T52	Extruded	Up to 0.124	+/- 0.006"	+/- 0.010"	+/- 0.012"	...	...
6063-T52	Extruded	0.125 to 0.249	+/- 0.007"	+/- 0.012"	+/- 0.014"	+/- 0.016"	...
6063-T52	Extruded	0.250 to 0.499	+/- 0.008"	+/- 0.016"	+/- 0.016"	+/- 0.018"	+/- 0.020"
6063-T52	Extruded	0.500 to 0.749	+/- 0.009"	+/- 0.018"	+/- 0.018"	+/- 0.020"	+/- 0.022"

Sheet/Plate (Non-Aerospace Alloys)
Applicable Alloys: 1100-H14, 3003-H14, 5005 (anodized), 5052-H32, 5086-H32, 6061(-O/-T4/-T6/-T651), 6063S(-T651)
	Specified Width, in.
	Up Thru 39.37	Over 39.37 thru 59.06	Over 59.06 thru 78.74
Spec. Thick, in.	Thick Tol. (over(+)/under(-))
Over 0.0059 thru 0.010	+/- 0.0010"	+/- 0.0015"	...
Over 0.010 thru 0.016	+/- 0.0010"	+/- 0.0015"	...
Over 0.016 thru 0.025	+/- 0.0015"	+/- 0.0020"	+/- 0.0030"
Over 0.025 thru 0.032	+/- 0.0020"	+/- 0.0025"	+/- 0.0035"
Over 0.032 thru 0.039	+/- 0.0020"	+/- 0.0030"	+/- 0.0035"
Over 0.039 thru 0.047	+/- 0.0025"	+/- 0.0035"	+/- 0.0045"
Over 0.047 thru 0.063	+/- 0.0030"	+/- 0.0035"	+/- 0.0050"
Over 0.063 thru 0.079	+/- 0.0035"	+/- 0.0040"	+/- 0.006"
Over 0.079 thru 0.098	+/- 0.0035"	+/- 0.0045"	+/- 0.006"
Over 0.098 thru 0.126	+/- 0.0045"	+/- 0.006"	+/- 0.007"
Over 0.126 thru 0.158	+/- 0.006"	+/- 0.007"	+/- 0.009"
Over 0.158 thru 0.197	+/- 0.007"	+/- 0.009"	+/- 0.011"
Over 0.197 thru 0.248	+/- 0.009"	+/- 0.011"	+/- 0.013"
Over 0.248 thru 0.315	+/- 0.012"	+/- 0.014"	+/- 0.015"
Over 0.315 thru 0.394	+/- 0.015"	+/- 0.017"	+/- 0.020"
Over 0.394 thru 0.630	+/- 0.023"	+/- 0.023"	+/- 0.027"
Over 0.630 thru 0.984	+/- 0.031"	+/- 0.031"	+/- 0.037"
Over 0.984 thru 1.575	+/- 0.039"	+/- 0.039"	+/- 0.047"
Over 1.575 thru 2.362	+/- 0.055"	+/- 0.055"	+/- 0.060"
Over 2.362 thru 3.150	+/- 0.075"	+/- 0.075"	+/- 0.085"
Over 3.150 thru 3.937	+/- 0.100"	+/- 0.100"	+/- 0.115"
Over 3.937 thru 6.299	+/- 0.130"	+/- 0.130"	+/- 0.145"
Over 6.300 to 8.000	+/- 0.160"	+/- 0.160"	+/- 0.160"

Sheet/Plate (Non-Aerospace Alloys)
Applicable Alloys: MIC-6 & 5000 Series Cast Plate
	Spec. Thick, in.	Thick Tol. (over(+)/under(-))	Flatness Tol. (deviation from flat)
Cast	0.25 thru 0.625	+/- 0.005"	0.015"
Cast	0.75 thru 4	+/- 0.005"	0.005"

Sheet/Plate (Aerospace Alloys)
Applicable Alloys: 2024-T3(Bare/Clad), 2024-T351, 7050-T7451, 7075-T6(Bare/Clad), 7075-T651, 7075(-T73/-T7351)
	Specified Width, in.
	Up Thru 39.37	Over 39.37 thru 47.24	Over 47.24 thru 55.12
Spec. Thick, in.	Thick Tol. (over(+)/under(-))
Over 0.0059 thru 0.010	+/- 0.0010"	+/- 0.0020"	+/- 0.0020"
Over 0.010 thru 0.016	+/- 0.0015"	+/- 0.0025"	+/- 0.0025"
Over 0.016 thru 0.025	+/- 0.0015"	+/- 0.0025"	+/- 0.0025"
Over 0.025 thru 0.032	+/- 0.0015"	+/- 0.0015"	+/- 0.0030"
Over 0.032 thru 0.039	+/- 0.0015"	+/- 0.0015"	+/- 0.0030"
Over 0.039 thru 0.047	+/- 0.0020"	+/- 0.0020"	+/- 0.0030"
Over 0.047 thru 0.063	+/- 0.0020"	+/- 0.0020"	+/- 0.0030"
Over 0.063 thru 0.079	+/- 0.0020"	+/- 0.0020"	+/- 0.0035"
Over 0.079 thru 0.098	+/- 0.0025"	+/- 0.0025"	+/- 0.0040"
Over 0.098 thru 0.126	+/- 0.0035"	+/- 0.0035"	+/- 0.0045"
Over 0.126 thru 0.158	+/- 0.0040"	+/- 0.0040"	+/- 0.007"
Over 0.158 thru 0.197	+/- 0.006"	+/- 0.007"	+/- 0.009"
Over 0.197 thru 0.248	+/- 0.009"	+/- 0.012"	+/- 0.012"
Over 0.248 thru 0.315	+/- 0.012"	+/- 0.015"	+/- 0.015"
Over 0.315 thru 0.394	+/- 0.017"	+/- 0.018"	+/- 0.018"
Over 0.394 thru 0.630	+/- 0.023"	+/- 0.023"	+/- 0.023"
Over 0.630 thru 0.984	+/- 0.031"	+/- 0.031"	+/- 0.031"
Over 0.984 thru 1.575	+/- 0.039"	+/- 0.039"	+/- 0.039"
Over 1.575 thru 2.362	+/- 0.055"	+/- 0.055"	+/- 0.055"
Over 2.362 thru 3.150	+/- 0.075"	+/- 0.075"	+/- 0.075"
Over 3.150 thru 3.937	+/- 0.100"	+/- 0.100"	+/- 0.100"
Over 3.937 thru 6.299	+/- 0.130"	+/- 0.130"	+/- 0.130"
Over 6.300 to 8.000	+/- 0.160"	+/- 0.160"	+/- 0.160"

Sheet Flatness Tolerance
Applicable Alloys: 1100(-H14/H112), 3003-H14, 5005
Spec. Thick, in.	Allowable Deviation from Flat
0.020 thru 0.064	0.1875"
0.065 thru 0.249	0.3125"
Flatness tolerance will be void once full sheet is cut

Sheet Flatness Tolerance
Applicable Alloys: 2024(-O/T3/T351), 5052-H32, 5086-H32, 6061(-O/T4/T6/T651), 7050-T7451, 7075(-O/T6/T651/T73/T7351)
Spec. Thick, in.	Allowable Deviation from Flat
0.020 thru 0.064	0.3125"
0.065 thru 0.249	0.375"
Flatness tolerance will be void once full sheet is cut

Plate Longitudinal Flatness Tolerance
Applicable Alloys: TX51 Tempers
Spec. Thick, in.	Allowable Deviation from Flat
0.250 to 3.000	0.1875" in any 6 ft.
3.001-8.000	0.125" in any 6 ft. or less
Flatness tolerance will be void once full sheet is cut

Plate Transverse Flatness Tolerance
Applicable Alloys: TX51 Tempers
Spec. Thick, in.	Allowable Deviation from Flat
0.250 to 0.624	0.3125"
0.625 to 1.500	0.1875"
1.501 to 3.000	0.1875"
3.001 to 8.000	0.125"
Flatness tolerance will be void once full sheet is cut

Plate Longitudinal Flatness Tolerance
Applicable Alloys: Other than TX51 Tempers
Spec. Thick, in.	Allowable Deviation from Flat
0.250 to 3.000	0.25" in any 6 ft. or less
3.001-8.000	0.25" in any 6 ft. or less
Flatness tolerance will be void once full sheet is cut

Plate Transverse Flatness Tolerance
Applicable Alloys: Other than TX51 Tempers
Spec. Thick, in.	Allowable Deviation from Flat
0.250 to 0.624	0.375"
0.625 to 1.500	0.25"
1.501 to 3.000	0.1875"
3.001 to 8.000	0.1875"
Flatness tolerance will be void once full sheet is cut

Tread Plate
Applicable Alloys: 3003-H22
Spec. Thick, in.	Thickness Tol. (over(+)/under(-))
0.100	+/- 0.006"
0.125	+/- 0.009"
0.156	+/- 0.010"
0.188	+/- 0.010"

Tread Plate
Applicable Alloys: 6061-T6
Spec. Thick, in.	Spec. Tol. (over(+)/under(-))
0.100	+ 0.008", - 0.012"
0.125	+ 0.010", - 0.015"
0.156	+ 0.011", - 0.019"
0.188	+ 0.013", - 0.023"
0.250	+ 0.018", - 0.030"
0.375	+ 0.025", - 0.045"
0.500	+ 0.035", - 0.060"
0.625	+ 0.044", - 0.075"

Drawn Round Tube
Alloy(s)		Spec. O.D., in.	O.D. Tol. (over(+)/under(-))	Spec. Wall Thickness, in.	Wall Thickness Tol. (over(+)/under(-))
2024-T3, 6061-T6	Drawn	Up thru 0.500	+/- 0.003"	0.010 to 0.035	+/- 0.002"
2024-T3, 6061-T6	Drawn	0.501 to 1.000	+/- 0.004"	0.036 to 0.049	+/- 0.003"
2024-T3, 6061-T6	Drawn	1.001 to 2.000	+/- 0.005"	0.050 to 0.083	+/- 0.004"
2024-T3, 6061-T6	Drawn	2.001 to 3.000	+/- 0.006"	0.084 to 0.120	+/- 0.005"
2024-T3, 6061-T6	Drawn	3.001 to 5.000	+/- 0.008	0.121 to 0.203	+/- 0.006"
2024-T3, 6061-T6	Drawn	5.001 to 6.000	+/- 0.010"	0.204 to 0.300	+/- 0.008"
2024-T3, 6061-T6	Drawn	6.001 to 8.000	+/- 0.015"	0.301 to 0.375	+/- 0.015"
2024-T3, 6061-T6	Drawn	8.001 to 10.000	+/- 0.020"	0.376 to 0.500	+/- 0.020"
2024-T3, 6061-T6	Drawn	10.001 to 12.000	+/- 0.025"	...	...

Straightness Tolerance - Drawn Round Tube
Temper		Spec. Outside Diameter, in.	Max. Allowed Deviation from Straight
All	Drawn	Up thru 0.374	0.500 × Measured Length, ft.
All	Drawn	0.375 to 5.999	0.010 × Measured Length, ft.
All	Drawn	6.000 and over	0.020 × Measured Length, ft.
Straightness tolerance will be void once full length is cut

Extruded Round Tube
Alloy(s)		Spec. O.D., in.	O.D. Tol. (over(+)/under(-))
6061-T6, 6063(-T5/52)	Extruded	0.500 to 0.999	+/- 0.020"
6061-T6, 6063(-T5/52)	Extruded	1.000 to 1.999	+/- 0.025"
6061-(T6/T6511), 6063-T52	Extruded	2.000 to 3.999	+/- 0.030"
6061-(T6/T6511), 6063-T52	Extruded	4.000 to 5.999	+/- 0.050"
6061-(T6/T6511), 6063-T52	Extruded	6.000 to 7.999	+/- 0.075"
6061-(T6/T6511)	Extruded	8.000 to 9.999	+/- 0.100"
6061-(T6/T6511)	Extruded	10.000 to 11.999	+/- 0.125"
6061-(T6/T6511)	Extruded	12.000 to 13.999	+/- 0.150"
6061-(T6/T6511)	Extruded	14.000 to 15.999	+/- 0.175"
6061-(T6/T6511)	Extruded	16.000 to 17.999	+/- 0.200"
6061-(T6/T6511)	Extruded	18.000 to 19.999	+/- 0.225"
6061-(T6/T6511)	Extruded	20.000 to 21.999	+/- 0.250"
6061-(T6/T6511)	Extruded	22.000 to 23.999	+/- 0.275"

Extruded Round Tube
			Spec. O.D., in.
			Under 1.250	1.250 to 2.999	3.000 to 4.999	5.000 & over
Alloy(s)		Spec. Wall Thickness, in.	Mean Wall Thickness Tol. (over(+)/under(-))
6061-T6	Extruded	Under 0.047	+/- 0.006"	...	...	...
6061-T6, 6063-T5	Extruded	0.047 to 0.061	+/- 0.007"	+/- 0.008"	+/- 0.008"	+/- 0.010"
6061-T6, 6063-T5	Extruded	0.062 to 0.077	+/- 0.008"	+/- 0.008"	+/- 0.009"	+/- 0.012"
6061-T6	Extruded	0.078 to 0.124	+/- 0.009"	+/- 0.009"	+/- 0.010"	+/- 0.015"
6061-T6, 6063(-T5/52)	Extruded	0.125 to 0.249	+/- 0.009"	+/- 0.009"	+/- 0.013"	+/- 0.020"
6061-T6	Extruded	0.250 to 0.374	+/- 0.011"	+/- 0.011"	+/- 0.016"	+/- 0.025"
6061-T6	Extruded	0.375 to 0.499	...	+/- 0.015"	+/- 0.021"	+/- 0.035"
6061-(T6/T6511), 6063-T52	Extruded	0.500 to 0.749	...	+/- 0.020"	+/- 0.028"	+/- 0.045"
6061-T6	Extruded	0.750 to 0.999	...	...	+/- 0.035"	+/- 0.055"
6061-T6	Extruded	1.000 to 1.499	...	...	+/- 0.045"	+/- 0.065"
6061-T6	Extruded	1.500 to 2.000	...	...	...	+/- 0.075"
6061-T6	Extruded	2.001 to 2.499	...	...	...	+/- 0.085"
6061-(T6/T6511)	Extruded	2.500 to 2.999	...	...	...	+/- 0.095"
6061-(T6/T6511)	Extruded	3.000 to 3.499	...	...	...	+/- 0.105"
6061-(T6/T6511)	Extruded	3.500 to 4.000	...	...	...	+/- 0.115"

Metric Round Tube
Alloy(s)		Spec. O.D. & Wall Thickness, mm	O.D. & Wall Thickness Tol. (over(+)/under(-))
6060 metric	Extruded	≥ 8mm to 18mm	+/- 0.60mm
6060 metric	Extruded	> 18mm to 30mm	+/- 0.70mm
6060 metric	Extruded	> 30mm to 50mm	+/- 0.90mm
6060 metric	Extruded	> 50mm to 80mm	+/- 1.1mm
6060 metric	Extruded	> 80mm to 120mm	+/- 1.4mm

Straightness Tolerance - Extruded Round Tube
Temper		Spec. Outside Diameter, in.	Max. Allowed Deviation from Straight
All	Extruded	0.500 to 5.999	0.010 × Measured Length, ft.
All	Extruded	6.000 and over	0.020 × Measured Length, ft.
Straightness tolerance will be void once full length is cut

Square Tube
Alloy(s)		Spec. Height, in.	Height Tol. (at corners) (over(+)/under(-))	Height Tol. (not at corners) (over(+)/under(-))
6061-T6, 6063-T52	Extruded	0.500 to 0.749	+/- 0.012"	+/- 0.020"
6061-T6, 6063-T52	Extruded	0.750 to 0.999	+/- 0.014"	+/- 0.020"
6061-T6, 6063(-T5/52)	Extruded	1.000 to 1.999	+/- 0.018"	+/- 0.025"
6061-T6, 6063-T52	Extruded	2.000 to 3.999	+/- 0.025"	+/- 0.035"
6061-T6, 6063-T52	Extruded	4.000 to 4.999	+/- 0.035"	+/- 0.045"
6061-T6, 6063-T52	Extruded	5.000 to 5.999	+/- 0.045"	+/- 0.055"
6061-T6, 6063-T52	Extruded	6.000 to 6.999	+/- 0.055"	+/- 0.065"
6061-T6, 6063-T52	Extruded	7.000 to 7.999	+/- 0.065"	+/- 0.075"
6061-T6, 6063-T52	Extruded	8.000 to 8.999	+/- 0.075"	+/- 0.085"
6061-T6, 6063-T52	Extruded	9.000 to 9.999	+/- 0.085"	+/- 0.095"
6061-T6, 6063-T52	Extruded	10.000 to 10.999	+/- 0.095"	+/- 0.105"
6061-T6, 6063-T52	Extruded	11.000 to 12.999	+/- 0.105"	+/- 0.115"

			Circumscribing Circle Dia., in.
			Under 5.000(Height ≤ 3.5")	5.000 and Over(Height > 3.5")
		Spec. Wall Thickness, in.	Wall Thickness Tol. (over(+)/under(-))
6061-T6, 6063-T52	Extruded	Under 0.047	+/- 0.005"	+/- 0.008"
6061-T6, 6063-T52	Extruded	0.047 to 0.061	+/- 0.006"	+/- 0.009"
6061-T6, 6063(-T5/52)	Extruded	0.062 to 0.124	+/- 0.007"	+/- 0.010"
6061-T6, 6063(-T5/52)	Extruded	0.125 to 0.249	+/- 0.008"	+/- 0.015"
6061-T6, 6063-T52	Extruded	0.250 to 0.374	+/- 0.011"	+/- 0.020"
6061-T6, 6063-T52	Extruded	0.375 to 0.499	+/- 0.014"	+/- 0.030"
6061-T6, 6063-T52	Extruded	0.500 to 0.749	+/- 0.025"	+/- 0.040"
6061-T6, 6063-T52	Extruded	0.750 to 0.999	+/- 0.035"	+/- 0.050"
6061-T6, 6063-T52	Extruded	1.000 to 1.499	+/- 0.045"	+/- 0.060"
6061-T6, 6063-T52	Extruded	1.500 to 2.000	...	+/- 0.070"

Metric Square Tube
Alloy(s)		Spec. Height & Wall Thickness, mm	Height & Wall Thickness Tol. (over(+)/under(-))
6060 metric	Extruded	≤ 10mm	+/- 0.25mm
6060 metric	Extruded	> 10mm to 25mm	+/- 0.30mm
6060 metric	Extruded	> 25mm to 50mm	+/- 0.50mm
6060 metric	Extruded	> 50mm to 100mm	+/- 0.70mm

Square Tube w/ Radius Corners
		Spec. Inside and/or Outside Radius, in.	Inside and/or Outside Radius Tol. (over(+)/under(-))
6061-T6, 6063-T52	Extruded	0.016 to 0.187	+/- 1/64"
6061-T6, 6063-T52	Extruded	0.188 and over	+/- 10%
Height and width tolerances are the same for extruded tubes without radius corners.

Straightness Tolerance - Extruded Square Tube
		Circumscribing Circle Dia., in.
		0.500 to 5.999(Height < 4.25")	6.000(Height ≥ 4.25") and over
Temper		Max. Allowed Deviation from Straight
All	Extruded	0.010 × Measured Length, ft.	0.020 × Measured Length, ft.
Straightness tolerance will be void once full length is cut

Rectangle Tube
Alloy(s)		Spec. Height & Width, in.	Height & Width Tol. (at corners) (over(+)/under(-))	Height & Width Tol. (not at corners) (over(+)/under(-))
6061-T6, 6063(-T5/52)	Extruded	0.500 to 0.749	+/- 0.012"	+/- 0.020"
6061-T6, 6063-T52	Extruded	0.750 to 0.999	+/- 0.014"	+/- 0.020"
6061-T6, 6063(-T5/52)	Extruded	1.000 to 1.999	+/- 0.018"	+/- 0.025"
6061-T6, 6063-T52	Extruded	2.000 to 3.999	+/- 0.025"	+/- 0.035"
6061-T6, 6063-T52	Extruded	4.000 to 4.999	+/- 0.035"	+/- 0.045"
6061-T6, 6063-T52	Extruded	5.000 to 5.999	+/- 0.045"	+/- 0.055"
6061-T6, 6063-T52	Extruded	6.000 to 6.999	+/- 0.055"	+/- 0.065"
6061-T6, 6063-T52	Extruded	7.000 to 7.999	+/- 0.065"	+/- 0.075"
6061-T6, 6063-T52	Extruded	8.000 to 8.999	+/- 0.075"	+/- 0.085"
6061-T6, 6063-T52	Extruded	9.000 to 9.999	+/- 0.085"	+/- 0.095"
6061-T6, 6063-T52	Extruded	10.000 to 10.999	+/- 0.095"	+/- 0.105"
6061-T6, 6063-T52	Extruded	11.000 to 12.999	+/- 0.105"	+/- 0.115"

			Circumscribing Circle Dia., in.
			Under 5.000(Dims < 3" x 4")	5.000 and over(Dims ≥ 3" x 4")
		Spec. Wall Thickness, in.	Allowable Deviation of Mean Wall Thickness From Spec. Wall Thickness
6061-T6, 6063-T52	Extruded	Under 0.047	+/- 0.005"	+/- 0.008"
6061-T6, 6063-T52	Extruded	0.047 to 0.061	+/- 0.006"	+/- 0.009"
6061-T6, 6063-T52	Extruded	0.062 to 0.124	+/- 0.007"	+/- 0.010"
6061-T6, 6063(-T5/52)	Extruded	0.125 to 0.249	+/- 0.008"	+/- 0.015"
6061-T6, 6063-T52	Extruded	0.250 to 0.374	+/- 0.011"	+/- 0.020"
6061-T6, 6063-T52	Extruded	0.375 to 0.499	+/- 0.014"	+/- 0.030"
6061-T6, 6063-T52	Extruded	0.500 to 0.749	+/- 0.025"	+/- 0.040"
6061-T6, 6063-T52	Extruded	0.750 to 0.999	+/- 0.035"	+/- 0.050"
6061-T6, 6063-T52	Extruded	1.000 to 1.499	+/- 0.045"	+/- 0.060"
6061-T6, 6063-T52	Extruded	1.500 to 2.000	...	+/- 0.070"

Rectangle Tube
Alloy(s)		Spec. Height, Width, & Wall Thickness, mm	Height, Width, & Wall Thickness Tol. (over(+)/under(-))
6060 metric	Extruded	≤ 10mm	+/- 0.30mm
6060 metric	Extruded	> 10mm to 25mm	+/- 0.40mm
6060 metric	Extruded	> 25mm to 50mm	+/- 0.60mm
6060 metric	Extruded	> 50mm to 100mm	+/- 0.90mm
6060 metric	Extruded	> 100mm to 150mm	+/- 1.1mm
6060 metric	Extruded	> 150mm to 200mm	+/- 1.3mm

Rectangle Tube w/ Radius Corners
		Spec. Inside and/or Outside Radius, in.	Inside and/or Outside Radius Tol. (over(+)/under(-))
6061-T6, 6063-T52	Extruded	0.016 to 0.187	+/- 1/64"
6061-T6, 6063-T52	Extruded	0.188 and over	+/- 10%
Height and width tolerances are the same for extruded tubes without radius corners.

Straightness Tolerance - Extruded Rectangle Tube
		Circumscribing Circle Dia., in.
		0.500 to 5.999(Height*Width < 18)	6.000(Height*Width ≥ 18) and over
Temper		Max. Allowed Deviation from Straight
All	Extruded	0.010 × Measured Length, ft.	0.020 × Measured Length, ft.
Straightness tolerance will be void once full length is cut

Pipe
			Nominal Diameter Tol. (over(+)/under(-))
		Nominal Pipe Size	Schedules 5 & 10	Schedules 20 & greater
6061-T6, 6063-T52, 6101-T6	Extruded	Under 2	+ 0.015", - 0.031"	+ 0.015", - 0.031"
6061-T6, 6063-T52, 6101-T6	Extruded	2 to 4	+/- 0.031"	+/- 1%
6061-T6, 6063-T52, 6101-T6	Extruded	5 to 6	+ 0.062", - 0.031"	+/- 1%
6061-T6, 6063-T52, 6101-T6	Extruded	8 to 12	+ 0.093", - 0.031"	+/- 1%

		Schedule #	Wall Thickness Tol. (over(+)/under(-))
6061-T6, 6063-T52, 6101-T6	Extruded	5 & 10	+/- 12.5%, +/- 0.012" min.
6061-T6, 6063-T52, 6101-T6	Extruded	20 & Greater	- 12.5%

Straightness Tolerance - Extruded Pipe
Temper		Nominal Pipe Size	Max. Allowed Deviation from Straight
All	Extruded	Under 6	0.010 × Measured Length, ft.
All	Extruded	6-12	0.020 × Measured Length, ft.
Straightness tolerance will be void once full length is cut

Open for Orders 24/7!

Aluminum Tolerances