• Home
  • Aluminum Tolerances

Back to Tolerance Home Page


​​​​​​​Aluminum Tolerances


 

Round Bars | Square Bars | Hex Bars | Rectangle Bars | Angle | Architectural Channel | Sheet/Plate | Tread Plate | Round Tubes | Square Tubes | Rectangle Tubes | Pipe

 


​​​​​​​

Round Bars
 Spec. Diameter, in.  Diameter Tol.
Aluminum  Round Bar  2011-T3, 2024-T4, 6061(-T6/T651)  Cold Finish  0.125 to 0.374  +/- 0.0015"
Aluminum  Round Bar  2011-T3, 2024(-T351/T4), 6061(- T6/T651)  Cold Finish  0.375 to 0.500  +/- 0.0015"
Aluminum  Round Bar  2011-T3, 2024-T351, 6061-T651  Cold Finish  0.501 to 1.000  +/- 0.002"
Aluminum  Round Bar  2011-T3, 2024-T351, 6061-T651, 7075- T651  Cold Finish  1.001 to 1.500  +/- 0.0025"
Aluminum  Round Bar  2011-T3, 2024-T351, 6061-T651, 7075- T651  Cold Finish  1.501 to 2.000  +/- 0.004"
Aluminum  Round Bar  2011-T3, 2024-T351, 6061-T651, 7075-T651  Cold Finish  2.001 to 3.000  +/- 0.006"
Aluminum  Round Bar  2011-T3, 2024-T351, 6061-T651, 7075-T651  Cold Finish  3.001 to 3.499  +/- 0.008"
Aluminum  Round Bar  2011-T3, 2024-T351, 6061-T651, 7075-T651  Cold Finish  3.500 to 5.000  +/- 0.012"
Aluminum  Round Bar  2024-T351, 6061-T651, 7075-T651  Cold Finish  5.001 to 6.000  +/- 0.020"
Aluminum  Round Bar  6061-T6511  Extruded  0.125 to 0.249  +/- 0.007"
Aluminum  Round Bar  6061-T6511, 6063(-T5/52)  Extruded  0.250 to 0.499  +/- 0.008"
Aluminum  Round Bar  6061-T6511, 6063-T52, 6262-T6511  Extruded  0.500 to 0.749  +/- 0.009"
Aluminum  Round Bar  6061-T6511, 6063-T52, 6262-T6511  Extruded  0.750 to 0.999  +/- 0.010"
Aluminum  Round Bar  6061-T6511, 6063-T52, 6262-T6511  Extruded  1.000 to 1.499  +/- 0.012"
Aluminum  Round Bar  6061-T6511, 6063-T52, 6262-T6511  Extruded  1.500 to 1.999  +/- 0.014"
Aluminum  Round Bar  2011-T3, 6061-T6511, 6262-T6511  Extruded  2.000 to 3.999  +/- 0.024"
Aluminum  Round Bar  6061-T6511  Extruded  4.000 to 5.999  +/- 0.034"
Aluminum  Round Bar  6061-T6511, 7075-T651  Extruded  6.000 to 7.999  +/- 0.044"
Aluminum  Round Bar  6061-T6511, 7075-T651  Extruded  8.000 to 9.999  +/- 0.064"
Aluminum  Round Bar  6061(-T6/T6511)  Extruded  10.000 to 11.999  +/- 0.074"
Aluminum  Round Bar  6061-T6511  Extruded  12.000 to 13.999  +/- 0.084"
Aluminum  Round Bar  6061(-T6/T6511)  Extruded  14.000 to 15.999  +/- 0.094"
Aluminum  Round Bar  6061-T6511  Extruded  16.000 to 17.999  +/- 0.104"
Aluminum  Round Bar  6061(-T6/T6511)  Extruded  18.000 to 19.999  +/- 0.114"
Aluminum  Round Bar  6061-T6  Extruded  20.000 to 21.999  +/- 0.124"


 

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

  

 

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

  

 

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

 

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


 

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


​​​​​​​

Metric Rectangle Bars        
 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. Thick Tol.
 Aluminum  Rect. Bar  6060 Metric Extruded ≥ 10mm to 18mm, incl.  +/- 0.25mm  +/- 0.20mm  +/- 0.25mm  +/- 0.25mm ... ...
 Aluminum  Rect. Bar  6060 Metric Extruded   Over 18mm to 30mm, incl.  +/- 0.30mm   +/- 0.20mm  +/- 0.25mm   +/- 0.30mm  +/- 0.30mm ...
 Aluminum  Rect. Bar  6060 Metric Extruded   Over 30mm to 50mm, incl.  +/- 0.40mm   +/- 0.25mm  +/- 0.25mm   +/- 0.30mm  +/- 0.35mm  +/- 0.40mm
 Aluminum  Rect. Bar  6060 Metric Extruded   Over 50mm to 80mm, incl.  +/- 0.60mm   +/- 0.25mm  +/- 0.30mm   +/- 0.35mm  +/- 0.40mm  +/- 0.50mm
 Aluminum  Rect. Bar  6060 Metric  Extruded   Over 80mm to 120mm, incl.  +/- 0.80mm   +/- 0.30mm  +/- 0.35mm   +/- 0.40mm  +/- 0.45mm  +/- 0.60mm


 

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

  

 

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
Spec. Thick, in. Thick Tol. Leg Tol.
Aluminum Angle  6061-T6, 6063(-T5/52) Extruded Up thru 0.124  +/- 0.006"  +/- 0.010"  +/- 0.012"  ...  ...   ...   ... 
Aluminum Angle 6061-T6, 6063(-T5/52) Extruded 0.125 to 0.249  +/- 0.007"   +/- 0.012"   +/- 0.014"   +/- 0.016"  ...   ...   ... 
Aluminum Angle 6061-T6, 6063-T52 Extruded 0.250 to 0.499  +/- 0.008"   +/- 0.014"   +/- 0.016"   +/- 0.018"   +/- 0.020"  ...   ... 
Aluminum Angle 6061-T6, 6063-T52 Extruded 0.500 to 0.749  +/- 0.009"   +/- 0.016"   +/- 0.018"   +/- 0.020"   +/- 0.022"   ...   ... 
Aluminum Angle 6061-T6, 6063-T52 Extruded 0.750 to 0.999  +/- 0.010"   +/- 0.018"   +/- 0.020"   +/- 0.022"   +/- 0.025"   +/- 0.030"  ... 
Aluminum Angle 6061-T6, 6063-T52 Extruded 1.000 to 1.499  +/- 0.012"   +/- 0.021"   +/- 0.023"   +/- 0.026"   +/- 0.030"   +/- 0.035"   ...
Aluminum Angle 6061-T6, 6063-T52 Extruded 1.500 to 1.999  +/- 0.014"    +/- 0.024"   +/- 0.026"   +/- 0.031"   +/- 0.036"   +/- 0.042"   +/- 0.050"
Aluminum Angle 6061-T6, 6063-T52 Extruded 2.000 to 3.999  +/- 0.024"  +/- 0.034"   +/- 0.038"   +/- 0.048"   +/- 0.057"   +/- 0.068"   +/- 0.080" 
Aluminum Angle 6061-T6, 6063-T52 Extruded 4.000 to 5.999  +/- 0.034"   +/- 0.044"   +/- 0.050"   +/- 0.064"   +/- 0.078"  +/- 0.094"   +/- 0.110" 
Aluminum Angle 6061-T6, 6063-T52 Extruded 6.000 to 7.999  +/- 0.044"   +/- 0.054"   +/- 0.062"   +/- 0.082"   +/- 0.099"   +/- 0.120"   +/- 0.140" 
Aluminum Angle 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.
 Spec. Thick, in.  Thick Tol.  0.250 to 0.624  0.625 to 1.249  1.250 to 2.499  2.500 to 3.999
 Aluminum Channel 6063-T52  Extruded  Up to 0.124  +/- 0.006"  +/- 0.010"  +/- 0.012"  ...  ...
 Aluminum  Channel 6063-T52  Extruded   0.125 to 0.249  +/- 0.007"  +/- 0.012"  +/- 0.014"  +/- 0.016"  ...
 Aluminum Channel 6063-T52  Extruded   0.250 to 0.499  +/- 0.008"  +/- 0.016"  +/- 0.016"  +/- 0.018"  +/- 0.020"
 Aluminum Channel 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(-T6/-T651)
Material Shape Prod. Method  Specified Dimension Dimension Tol. Dimension Tol.  Dimension Tol.
Specified Width, in.
Up Thru 39.37  Over 39.37 thru 59.06  Over 59.06 thru 78.74
Spec. Thick, in.  Thick Tol.
Aluminum Sheet/Plate Over 0.0059 thru 0.010  +/- 0.0010"   +/- 0.0015"  ...
Aluminum  Sheet/Plate  Over 0.010 thru 0.016  +/- 0.0010"   +/- 0.0015"   ... 
Aluminum  Sheet/Plate  Over 0.016 thru 0.025  +/- 0.0015"   +/- 0.0020"   +/- 0.0030" 
Aluminum  Sheet/Plate  Over 0.025 thru 0.032  +/- 0.0020"   +/- 0.0025"   +/- 0.0035" 
Aluminum  Sheet/Plate  Over 0.032 thru 0.039  +/- 0.0020"   +/- 0.0030"   +/- 0.0035" 
Aluminum  Sheet/Plate  Over 0.039 thru 0.047  +/- 0.0025"   +/- 0.0035"   +/- 0.0045"
Aluminum  Sheet/Plate  Over 0.047 thru 0.063  +/- 0.0030"   +/- 0.0035"   +/- 0.0050" 
Aluminum  Sheet/Plate  Over 0.063 thru 0.079  +/- 0.0035"   +/- 0.0040"   +/- 0.006" 
Aluminum  Sheet/Plate  Over 0.079 thru 0.098  +/- 0.0035"   +/- 0.0045"   +/- 0.006" 
Aluminum  Sheet/Plate  Over 0.098 thru 0.126  +/- 0.0045"   +/- 0.006"  +/- 0.007"
Aluminum  Sheet/Plate  Over 0.126 thru 0.158  +/- 0.006"   +/- 0.007"   +/- 0.009" 
Aluminum  Sheet/Plate  Over 0.158 thru 0.197  +/- 0.007"   +/- 0.009"   +/- 0.011"
Aluminum  Sheet/Plate  Over 0.197 thru 0.248  +/- 0.009"   +/- 0.011"   +/- 0.013" 
Aluminum  Sheet/Plate  Over 0.248 thru 0.315  +/- 0.012"  +/- 0.014"  +/- 0.015" 
Aluminum  Sheet/Plate  Over 0.315 thru 0.394  +/- 0.015"   +/- 0.017"   +/- 0.020" 
Aluminum  Sheet/Plate  Over 0.394 thru 0.630  +/- 0.023"  +/- 0.023"   +/- 0.027" 
Aluminum  Sheet/Plate  Over 0.630 thru 0.984  +/- 0.031"   +/- 0.031"   +/- 0.037"
Aluminum  Sheet/Plate  Over 0.984 thru 1.575  +/- 0.039"   +/- 0.039"   +/- 0.047" 
Aluminum  Sheet/Plate  Over 1.575 thru 2.362  +/- 0.055"   +/- 0.055"   +/- 0.060"
Aluminum  Sheet/Plate  Over 2.362 thru 3.150  +/- 0.075"   +/- 0.075"  +/- 0.085" 
Aluminum  Sheet/Plate  Over 3.150 thru 3.937  +/- 0.100"   +/- 0.100"   +/- 0.115" 
Aluminum  Sheet/Plate  Over 3.937 thru 6.299  +/- 0.130"  +/- 0.130"   +/- 0.145" 
Aluminum  Sheet/Plate  Over 6.300 to 8.000  +/- 0.160"   +/- 0.160"   +/- 0.160"

​​​​​​
Sheet/Plate (Non-Aerospace Alloys)
Applicable Alloys: Aluminum MIC-6 Cast Plate 
Spec. Thick, in. Thick Tol. Flatness Tol.
Aluminum Plate  Cast  0.25 thru 0.625  +/- 0.005"  0.015"
Aluminum Plate  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.
Aluminum Sheet/Plate Over 0.0059 thru 0.010  +/- 0.0010"  +/- 0.0020"  +/- 0.0020"
Aluminum  Sheet/Plate  Over 0.010 thru 0.016  +/- 0.0015"   +/- 0.0025"   +/- 0.0025" 
Aluminum  Sheet/Plate  Over 0.016 thru 0.025  +/- 0.0015"    +/- 0.0025"   +/- 0.0025" 
Aluminum  Sheet/Plate  Over 0.025 thru 0.032  +/- 0.0015"    +/- 0.0015"   +/- 0.0030" 
Aluminum  Sheet/Plate  Over 0.032 thru 0.039  +/- 0.0015"    +/- 0.0015"   +/- 0.0030" 
Aluminum  Sheet/Plate  Over 0.039 thru 0.047  +/- 0.0020"   +/- 0.0020"   +/- 0.0030" 
Aluminum  Sheet/Plate  Over 0.047 thru 0.063  +/- 0.0020"    +/- 0.0020"   +/- 0.0030" 
Aluminum  Sheet/Plate  Over 0.063 thru 0.079  +/- 0.0020"    +/- 0.0020"   +/- 0.0035" 
Aluminum  Sheet/Plate  Over 0.079 thru 0.098  +/- 0.0025"    +/- 0.0025"   +/- 0.0040" 
Aluminum  Sheet/Plate  Over 0.098 thru 0.126  +/- 0.0035"    +/- 0.0035"  +/- 0.0045" 
Aluminum  Sheet/Plate  Over 0.126 thru 0.158  +/- 0.0040"   +/- 0.0040"   +/- 0.007" 
Aluminum  Sheet/Plate  Over 0.158 thru 0.197  +/- 0.006"    +/- 0.007"   +/- 0.009" 
Aluminum  Sheet/Plate  Over 0.197 thru 0.248  +/- 0.009"   +/- 0.012"   +/- 0.012" 
Aluminum  Sheet/Plate  Over 0.248 thru 0.315  +/- 0.012"   +/- 0.015"   +/- 0.015" 
Aluminum  Sheet/Plate  Over 0.315 thru 0.394  +/- 0.017"   +/- 0.018"   +/- 0.018" 
Aluminum  Sheet/Plate  Over 0.394 thru 0.630  +/- 0.023"   +/- 0.023"   +/- 0.023" 
Aluminum  Sheet/Plate  Over 0.630 thru 0.984  +/- 0.031"   +/- 0.031"   +/- 0.031" 
Aluminum  Sheet/Plate  Over 0.984 thru 1.575  +/- 0.039"   +/- 0.039"   +/- 0.039" 
Aluminum  Sheet/Plate  Over 1.575 thru 2.362  +/- 0.055"   +/- 0.055"   +/- 0.055" 
Aluminum  Sheet/Plate  Over 2.362 thru 3.150  +/- 0.075"   +/- 0.075"   +/- 0.075" 
Aluminum  Sheet/Plate  Over 3.150 thru 3.937  +/- 0.100"   +/- 0.100"   +/- 0.100" 
Aluminum  Sheet/Plate  Over 3.937 thru 6.299  +/- 0.130"   +/- 0.130"   +/- 0.130" 
Aluminum  Sheet/Plate  Over 6.300 to 8.000  +/- 0.160"   +/- 0.160"   +/- 0.160" 

 

Tread Plate    
Applicable Alloys: 3003-H22    
Spec. Thick, in. Spec. Tolerance
Aluminum Diamond Tread Plate 0.100 +/- 0.006" 
Aluminum  Diamond Tread Plate  0.125  +/- 0.009"  
Aluminum  Diamond Tread Plate  0.156  +/- 0.010" 
Aluminum  Diamond Tread Plate  0.188  +/- 0.010" 


​​​​​​​

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

 

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


 

Extruded Round Tubes
 Spec. O.D., in.  O.D. Tol.
 Aluminum Round Tube 6061-T6, 6063(-T5/52)  Extruded  0.500 to 0.999  +/- 0.010"
 Aluminum  Round Tube  6061-T6, 6063(-T5/52)  Extruded   1.000 to 1.999   +/- 0.012" 
 Aluminum  Round Tube  6061-(T6/T6511), 6063-T52  Extruded   2.000 to 3.999   +/- 0.015" 
 Aluminum  Round Tube  6061-(T6/T6511), 6063-T52  Extruded   4.000 to 5.999   +/- 0.025" 
 Aluminum  Round Tube  6061-(T6/T6511), 6063-T52  Extruded   6.000 to 7.999   +/- 0.035" 
 Aluminum  Round Tube  6061-(T6/T6511)  Extruded   8.000 to 9.999   +/- 0.045" 
 Aluminum  Round Tube  6061-(T6/T6511)  Extruded   10.000 to 11.999   +/- 0.055" 
 Aluminum  Round Tube  6061-(T6/T6511)  Extruded   12.000 to 13.999   +/- 0.065" 
 Aluminum  Round Tube  6061-(T6/T6511)  Extruded   14.000 to 15.999   +/- 0.075" 
 Aluminum Round Tube 6061-(T6/T6511)  Extruded  16.000 to 17.999  +/- 0.085"
 Aluminum Round Tube 6061-(T6/T6511)  Extruded  18.000 to 19.999  +/- 0.95"
 Aluminum Round Tube 6061-(T6/T6511)   Extruded  20.000 to 21.999  +/- 0.105"
 Aluminum Round Tube 6061-(T6/T6511)   Extruded  22.000 to 23.999  +/- 0.115"
Spec. O.D., in.    
Under  1.250  1.250 to 2.999  3.000 to 4.999  5.000 & over
  Spec. Wall Thick, in. Wall Thick Tolerance   
 Aluminum  Round Tube  6061-T6  Extruded   Under 0.047  +/- 0.006"  ... ...  ... 
 Aluminum   Round Tube   6061-T6, 6063-T5  Extruded    0.047 to 0.061  +/- 0.007"   +/- 0.008"  +/- 0.008"  +/- 0.010"
 Aluminum   Round Tube   6061-T6, 6063-T5  Extruded    0.062 to 0.077   +/- 0.008"   +/- 0.008"   +/- 0.009"   +/- 0.012" 
 Aluminum   Round Tube   6061-T6    Extruded    0.078 to 0.124   +/- 0.009"   +/- 0.009"   +/- 0.010"   +/- 0.015" 
 Aluminum   Round Tube   6061-T6, 6063(-T5/52)  Extruded    0.125 to 0.249   +/- 0.009"   +/- 0.009"   +/- 0.013"   +/- 0.020" 
 Aluminum   Round Tube   6061-T6    Extruded    0.250 to 0.374   +/- 0.011"   +/- 0.011"   +/- 0.016"   +/- 0.025" 
 Aluminum   Round Tube   6061-T6    Extruded    0.375 to 0.499   ...  +/- 0.015"   +/- 0.021"   +/- 0.035" 
 Aluminum   Round Tube   6061-(T6/T6511), 6063-T52  Extruded    0.500 to 0.749   ...   +/- 0.020"   +/- 0.028"   +/- 0.045" 
 Aluminum   Round Tube   6061-T6    Extruded    0.750 to 0.999   ...   ...   +/- 0.035"   +/- 0.055" 
 Aluminum   Round Tube   6061-T6    Extruded    1.000 to 1.499   ...   ...   +/- 0.045"   +/- 0.065"
 Aluminum   Round Tube   6061-T6    Extruded    1.500 to 2.000   ...   ...   ...   +/- 0.075" 
 Aluminum   Round Tube   6061-T6    Extruded    2.001 to 2.499  ...   ...   ...   +/- 0.085" 
 Aluminum   Round Tube   6061-(T6/T6511)  Extruded    2.500 to 2.999   ...   ...   ...   +/- 0.095" 
 Aluminum   Round Tube   6061-(T6/T6511)  Extruded    3.000 to 3.499   ...   ...   ...   +/- 0.105" 
 Aluminum   Round Tube   6061-(T6/T6511)  Extruded    3.500 to 4.000   ...   ...   ...   +/- 0.115" 


 

Metric Round Tubes         
 Spec. O.D. & Wall Thick,  mm O.D. & Wall Thick Tol.
 Aluminum   Round Tube  6060 metric  Extruded  ≥8mm to 18mm  +/- 0.60mm
 Aluminum   Round Tube   6060 metric   Extruded   > 18mm to 30mm  +/- 0.70mm 
 Aluminum   Round Tube   6060 metric   Extruded   > 30mm to 50mm  +/- 0.90mm 
 Aluminum    Round Tube   6060 metric   Extruded   > 50mm to 80mm  +/- 1.1mm
 Aluminum    Round Tube   6060 metric   Extruded   > 80mm to 120mm  +/- 1.4mm 

 

Square Tubes
 Spec. Height, in. Height Tol. (at corners)  Height Tol. (not at corners)
 Aluminum Square Tube 6061-T6, 6063-T52  Extruded  0.500 to 0.749  +/- 0.012"  +/- 0.020"
 Aluminum  Square Tube 6061-T6, 6063-T52  Extruded  0.750 to 0.999  +/- 0.014"  +/- 0.020" 
 Aluminum  Square Tube 6061-T6, 6063(-T5/52)  Extruded  1.000 to 1.999  +/- 0.018"  +/- 0.025" 
 Aluminum  Square Tube 6061-T6, 6063-T52  Extruded  2.000 to 3.999  +/- 0.025"  +/- 0.035" 
 Aluminum  Square Tube 6061-T6, 6063-T52  Extruded  4.000 to 4.999  +/- 0.035"   +/- 0.045" 
 Aluminum  Square Tube 6061-T6, 6063-T52  Extruded  5.000 to 5.999  +/- 0.045"   +/- 0.055" 
 Aluminum  Square Tube 6061-T6, 6063-T52  Extruded  6.000 to 6.999  +/- 0.055"   +/- 0.065" 
 Aluminum  Square Tube 6061-T6, 6063-T52  Extruded  7.000 to 7.999  +/- 0.065"   +/- 0.075" 
 Aluminum  Square Tube 6061-T6, 6063-T52  Extruded  8.000 to 8.999  +/- 0.075"   +/- 0.085" 
 Aluminum   Square Tube  6061-T6, 6063-T52   Extruded   9.000 to 9.999  +/- 0.085"   +/- 0.095" 
 Aluminum  Square Tube 6061-T6, 6063-T52  Extruded  10.000 to 10.999  +/- 0.095"  +/- 0.105"
 Aluminum  Square Tube 6061-T6, 6063-T52  Extruded  11.000 to 12.999  +/- 0.105"  +/- 0.115"
Circumscribing Cirlce Dia., in.
Under 5.000(Height ≤ 1") 5.000 and over(Height ≥ 1.25")
  Spec. Wall Thick, in. Wall Thick Tolerance   
 Aluminum  Square Tube 6061-T6, 6063-T52  Extruded   Under 0.047  +/- 0.005"  +/- 0.008"
 Aluminum   Square Tube 6061-T6, 6063-T52  Extruded    0.047 to 0.061  +/- 0.006"  +/- 0.009"
 Aluminum   Square Tube 6061-T6, 6063(-T5/52)  Extruded    0.062 to 0.124  +/- 0.007"  +/- 0.010"
 Aluminum   Square Tube 6061-T6, 6063(-T5/52)  Extruded    0.125 to 0.249  +/- 0.008"  +/- 0.015"
 Aluminum   Square Tube 6061-T6, 6063-T52  Extruded    0.250 to 0.374  +/- 0.011"  +/- 0.020"
 Aluminum   Square Tube 6061-T6, 6063-T52  Extruded    0.375 to 0.499  +/- 0.014"  +/- 0.030"
 Aluminum   Square Tube 6061-T6, 6063-T52  Extruded    0.500 to 0.749  +/- 0.025"  +/- 0.040"
 Aluminum   Square Tube 6061-T6, 6063-T52  Extruded    0.750 to 0.999  +/- 0.035"  +/- 0.050"
 Aluminum   Square Tube 6061-T6, 6063-T52  Extruded    1.000 to 1.499  +/- 0.045"  +/- 0.060"
 Aluminum   Square Tube 6061-T6, 6063-T52  Extruded    1.500 to 2.000 ...  +/- 0.070"


 

Metric Square Tubes         
 Spec. Height & Wall Thick,  mm Height & Wall Thick Tol.
 Aluminum   Square Tube  6060 metric  Extruded  ≤ 10mm  +/- 0.25mm
 Aluminum   Square Tube  6060 metric   Extruded   > 10mm to 25mm  +/- 0.30mm
 Aluminum   Square Tube  6060 metric   Extruded   > 25mm to 50mm  +/- 0.50mm
 Aluminum    Square Tube  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.
Aluminum    Sq. Tube Radius Corner  6061-T6, 6063-T52  Extruded  0.016 to 0.187  +/- 1/64"
Aluminum     Sq. Tube Radius Corner   6061-T6, 6063-T52   Extruded   0.188 and over   +/- 10%
Height and width tolerances are the same for extruded tubes without radius corners.     

 ​​​​​​​
​​​​​

Rectangle Tubes
 Spec. Height & Width, in. Height & Width Tol. (at corners)  Height & Width Tol. (not at corners)
 Aluminum Rect. Tube 6061-T6, 6063(-T5/52)  Extruded  0.500 to 0.749  +/- 0.012"  +/- 0.020"
 Aluminum  Rect. Tube 6061-T6, 6063-T52  Extruded  0.750 to 0.999  +/- 0.014"  +/- 0.020" 
 Aluminum  Rect. Tube 6061-T6, 6063(-T5/52)  Extruded  1.000 to 1.999  +/- 0.018"  +/- 0.025" 
 Aluminum  Rect. Tube 6061-T6, 6063-T52  Extruded  2.000 to 3.999  +/- 0.025"  +/- 0.035" 
 Aluminum  Rect. Tube 6061-T6, 6063-T52  Extruded  4.000 to 4.999  +/- 0.035"   +/- 0.045" 
 Aluminum  Rect. Tube 6061-T6, 6063-T52  Extruded  5.000 to 5.999  +/- 0.045"   +/- 0.055" 
 Aluminum  Rect. Tube 6061-T6, 6063-T52  Extruded  6.000 to 6.999  +/- 0.055"   +/- 0.065" 
 Aluminum  Rect. Tube 6061-T6, 6063-T52  Extruded  7.000 to 7.999  +/- 0.065"   +/- 0.075" 
 Aluminum  Rect. Tube 6061-T6, 6063-T52  Extruded  8.000 to 8.999  +/- 0.075"   +/- 0.085" 
 Aluminum   Rect. Tube 6061-T6, 6063-T52   Extruded   9.000 to 9.999  +/- 0.085"   +/- 0.095" 
 Aluminum  Rect. Tube 6061-T6, 6063-T52  Extruded  10.000 to 10.999  +/- 0.095"  +/- 0.105"
 Aluminum  Rect. Tube 6061-T6, 6063-T52  Extruded  11.000 to 12.999  +/- 0.105"  +/- 0.115"
Circumscribing Cirlce Dia., in.
Under 5.000(Dims ≤ 0.5" x 1") 5.000 and over(Dims ≥ 0.75" x 1.5")
  Spec. Wall Thick, in. Wall Thick Tolerance   
 Aluminum  Rect. Tube 6061-T6, 6063-T52  Extruded   Under 0.047  +/- 0.005"  +/- 0.008"
 Aluminum   Rect. Tube 6061-T6, 6063-T52  Extruded    0.047 to 0.061  +/- 0.006"  +/- 0.009"
 Aluminum   Rect. Tube 6061-T6, 6063-T52  Extruded    0.062 to 0.124  +/- 0.007"  +/- 0.010"
 Aluminum   Rect. Tube 6061-T6, 6063(-T5/52)  Extruded    0.125 to 0.249  +/- 0.008"  +/- 0.015"
 Aluminum   Rect. Tube 6061-T6, 6063-T52  Extruded    0.250 to 0.374  +/- 0.011"  +/- 0.020"
 Aluminum   Rect. Tube 6061-T6, 6063-T52  Extruded    0.375 to 0.499  +/- 0.014"  +/- 0.030"
 Aluminum   Rect. Tube 6061-T6, 6063-T52  Extruded    0.500 to 0.749  +/- 0.025"  +/- 0.040"
 Aluminum   Rect. Tube 6061-T6, 6063-T52  Extruded    0.750 to 0.999  +/- 0.035"  +/- 0.050"
 Aluminum   Rect. Tube 6061-T6, 6063-T52  Extruded    1.000 to 1.499  +/- 0.045"  +/- 0.060"
 Aluminum   Rect. Tube 6061-T6, 6063-T52  Extruded    1.500 to 2.000 ...  +/- 0.070"

  
 

Rectangle Tubes        
 Spec. Height, Width, & Wall Thick, mm Height, Width, & Wall Thick Tol.
 Aluminum   Rect. Tube  6060 metric  Extruded  ≤ 10mm  +/- 0.30mm
 Aluminum   Rect. Tube  6060 metric   Extruded   > 10mm to 25mm  +/- 0.40mm 
 Aluminum   Rect. Tube  6060 metric   Extruded   > 25mm to 50mm  +/- 0.60mm 
 Aluminum    Rect. Tube  6060 metric   Extruded   > 50mm to 100mm  +/- 0.90mm 
 Aluminum     Rect. Tube   6060 metric    Extruded     > 100mm to 150mm  +/- 1.1mm 
 Aluminum    Rect. Tube  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.
Aluminum    Rect. Tube Radius Corner  6061-T6, 6063-T52  Extruded  0.016 to 0.187  +/- 1/64"
Aluminum     Rect. Tube Radius Corner   6061-T6, 6063-T52   Extruded   0.188 and over   +/- 10%
Height and width tolerances are the same for extruded tubes without radius corners.   

 

Pipe
Nominal Diameter Tol.
Nominal Pipe Size  Schedules 5 & 10 Schedules 20 & greater
Aluminum  Pipe 6061-T6, 6063-T52, 6101-T6 Extruded   Under 2 + 0.015",  - 0.031" + 0.015",  - 0.031"
Aluminum  Pipe 6061-T6, 6063-T52, 6101-T6  Extruded   2 to 4 +/- 0.031"  +/- 1%
Aluminum  Pipe 6061-T6, 6063-T52, 6101-T6 Extruded   5 to 6 + 0.062",  - 0.031"  +/- 1%
Aluminum  Pipe 6061-T6, 6063-T52, 6101-T6 Extruded   8 to 12 + 0.093",  - 0.031"  +/- 1%
Schedule # Wall Thickness Tol. 
Aluminum  Pipe 6061-T6, 6063-T52, 6101-T6 Extruded   5 & 10 +/- 12.5%, +/- 0.012" min.
Aluminum  Pipe 6061-T6, 6063-T52, 6101-T6 Extruded   20 & Greater  - 12.5%