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Cold Roll Steel Tolerances


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Round Bars | Square Bars | Hex Bars | Rectangle Bars | Sheet/Plate | Round Tubes | Key Stock


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Round Bars
 Spec. Diameter, in.  Diameter Tol.
 Cold Roll Steel Round Bar 1018, 12L14  Cold Drawn/Finish  Up to 1.5, incl.  +/- 0.002"
 Cold Roll Steel Round Bar  1018, 12L14  Cold Drawn/Finish  Over 1.5 to 2.5, incl.   +/- 0.003" 
 Cold Roll Steel Round Bar 1018, 12L14  Cold Drawn/Finish  Over 2.5 to 4, incl.   +/- 0.004" 


 
Round Bars      
 Spec. Diameter, in.  Diameter Tol.
 Cold Roll Steel Round Bar 1045, 1144  Cold Drawn/Finish  Up to 1.5, incl.  +/- 0.003"
 Cold Roll Steel Round Bar 1045, 1144  Cold Drawn/Finish  Over 1.5 to 2.5, incl.  +/- 0.004"
 Cold Roll Steel Round Bar 1045, 1144  Cold Drawn  Over 2.5 to 4, incl.  +/- 0.005"


 
Metric Round Bars      
 Spec. Diameter, mm  Diameter Tol.
 Cold Roll Steel Round Bar (Metric) 1018, 1045, 1144-Stress Relieved   TGP  1.5mm to 38mm  0/-.0005″ (.0127mm)
 Cold Roll Steel Round Bar (Metric) 1018, 1045, 1144-SR  TGP  39mm to 63mm  0/-.00075″ (.0191mm)
 Cold Roll Steel Round Bar (Metric) 1018, 1045, 1144-SR  TGP  64mm to 75mm  0/-.001″ (.0254mm)
 Cold Roll Steel Round Bar (Metric) 1018, 1045, 1144-SR  TGP  80mm to 100mm  0/-.0015″ (.0981mm)
 Cold Roll Steel Round Bar (Metric) 1018, 1045, 1144-SR  TGP  105mm to 150mm  0/-.002″(.0508mm)
 Cold Roll Steel Round Bar (Metric) 1018, 1045, 1144-SR  TGP  160mm to 200mm  0/-.0025″(.0635mm)

 

Square Bars      
Spec. Square, in. Square Tol.
 Cold Roll Steel  Square Bar 1018  Cold Finish  Up to 0.75, incl.  +/- 0.002"
 Cold Roll Steel   Square Bar  1018   Cold Finish   Over 0.75 to 1.5, incl.   +/- 0.003" 
 Cold Roll Steel   Square Bar  1018   Cold Finish   Over 1.5 to 2.5, incl.   +/- 0.004" 
 Cold Roll Steel  Square Bar 1018   Cold Finish  Over 2.5 to 4, incl.  +/- 0.006"


 
Metric Square Bars      
Spec. Square, mm  Square Tol.
 Cold Roll Steel   Square Bar  1018 Metric  Cold Finish    Over 3mm to 6mm, incl.  + 0, - 0.075mm
 Cold Roll Steel   Square Bar  1018 Metric  Cold Finish    Over 6mm to 10mm, incl.  + 0, - 0.090mm
 Cold Roll Steel   Square Bar  1018 Metric  Cold Finish    Over 10mm to 18mm, incl.  + 0, - 0.110mm
 Cold Roll Steel   Square Bar  1018 Metric  Cold Finish    Over 18mm to 30mm, incl.  + 0, - 0.130mm
 Cold Roll Steel   Square Bar  1018 Metric  Cold Finish    Over 30mm to 50mm, incl.  + 0, - 0.160mm

 

Hex Bars      
Spec. Across Flats, in. Across Flat Tol.
 Cold Roll Steel  Hex Bar 1018, 12L14  Up to 0.75  +/- 0.002"
 Cold Roll Steel  Hex Bar 1018, 12L14  Over 0.75 to 1.5  +/- 0.003"
 Cold Roll Steel  Hex Bar 1018, 12L14  Over 1.5 to 2.5  +/- 0.004"


 
Metric Hex Bars
 Spec. Square, mm  Square Tol.
 Cold Roll Steel  Hex Bar 1018 metric  Cold Drawn   Over 3mm to 6mm, incl.   + 0, - 0.075mm
 Cold Roll Steel  Hex Bar 1018 metric  Cold Drawn  Over 6mm to 10mm, incl.  + 0, - 0.090mm
 Cold Roll Steel  Hex Bar 1018 metric  Cold Drawn  Over 10mm to 18mm, incl.  + 0, - 0.110mm
 Cold Roll Steel  Hex Bar 1018 metric  Cold Drawn  Over 18mm to 30mm, incl.  + 0, - 0.130mm
 Cold Roll Steel  Hex Bar 1018 metric  Cold Drawn  Over 30mm to 50mm, incl.  + 0, - 0.160mm

 

Rectangle Bars
 Spec. Width, in.  Width Tol.
 Cold Roll Steel  Rectangle Bar   1018  Cold Finish  Up to 0.75  +/- 0.003"
 Cold Roll Steel   Rectangle Bar   1018, 11L17  Cold Finish   Over 0.75 to 1.5, incl.   +/- 0.004"
 Cold Roll Steel   Rectangle Bar   1018, 11L17  Cold Finish   Over 1.5 to 3, incl.    +/- 0.005"
 Cold Roll Steel   Rectangle Bar   1018, 11L17  Cold Finish   Over 3 to 4, incl.   +/- 0.006"
 Cold Roll Steel   Rectangle Bar   1018  Cold Finish   Over 4 to 6, incl.   +/- 0.008"
 Cold Roll Steel  Rectangle Bar  1018   Cold Finish   Over 6  +/- 0.013" 
Width governs the tolerances both width and thickness for rectangle bars. If the bar is 1.5" thick x 3.5" wide, the width tolerance of +/-0.006" will be the tolerance for the thickness as well, which is +/-0.006".


 
Metric Rectangle Bars
 Spec. Thickness, mm  Thickness Tol.  Spec. Width, mm  Width Tol.
 Cold Roll Steel   Rectangle Bar   1018 Metric  Cold Finish  Over 3mm to 6mm, incl.  + 0, - 0.075mm   Up to 18mm, incl.  + 0, - 0.11mm
 Cold Roll Steel   Rectangle Bar   1018 Metric  Cold Finish  Over 6mm to 10mm, incl.  + 0, - 0.090mm  Over 18mm to 30mm, incl.  + 0, - 0.13mm
 Cold Roll Steel   Rectangle Bar   1018 Metric  Cold Finish  Over 10mm to 18mm, incl.  + 0, - 0.11mm  Over 30mm to 50mm, incl.  + 0, - 0.16mm
 Cold Roll Steel   Rectangle Bar   1018 Metric  Cold Finish  Over 18 to 30mm, incl.  + 0, - 0.13mm  Over 50mm to 80mm, incl.  + 0, - 0.19mm
 Cold Roll Steel   Rectangle Bar   1018 Metric  Cold Finish  Over 30mm to 50mm, incl.  + 0, - 0.16mm  Over 80mm to 100mm, incl.  + 0, - 0.22mm

 

Sheet
Applicable Alloys: A366/1008
Spec. Gage No. Decimal Equiv., in. Tolerance Range, in.
CRS Sheet/Plate Cold Rolled   7  0.1793  0.1703 to 0.1883
CRS Sheet/Plate  Cold Rolled    8  0.1644  0.1554 to 0.1734
CRS Sheet/Plate  Cold Rolled    9  0.1495  0.1405 to 0.1585
CRS Sheet/Plate  Cold Rolled    10  0.1345  0.1285 to 0.1405
CRS Sheet/Plate  Cold Rolled    11  0.1196  0.1136 to 0.1256
CRS Sheet/Plate  Cold Rolled    12  0.1046  0.0986 to 0.1106
CRS Sheet/Plate  Cold Rolled    13  0.0897  0.0847 to 0.0947
CRS Sheet/Plate  Cold Rolled    14  0.0747  0.0697 to 0.0797
CRS Sheet/Plate  Cold Rolled    15  0.0673  0.0623 to 0.0723
CRS Sheet/Plate  Cold Rolled    16  0.0598  0.0548 to 0.0648
CRS Sheet/Plate  Cold Rolled    17  0.0538  0.0498 to 0.0548
CRS Sheet/Plate  Cold Rolled    18  0.0478  0.0438 to 0.0518
CRS Sheet/Plate  Cold Rolled    19  0.0418  0.0378 to 0.0458
CRS Sheet/Plate  Cold Rolled    20  0.0359  0.0329 to 0.0389 
CRS Sheet/Plate  Cold Rolled    21  0.0329  0.0299 to 0.0359
CRS Sheet/Plate  Cold Rolled    22  0.0299  0.0269 to 0.0329
CRS Sheet/Plate  Cold Rolled    23  0.0269  0.0239 to 0.0299
CRS Sheet/Plate  Cold Rolled    24  0.0239  0.0209 to 0.0269
CRS Sheet/Plate  Cold Rolled    25  0.0209  0.0179 to 0.0239
CRS Sheet/Plate  Cold Rolled    26  0.0179  0.0159 to 0.0199 
CRS Sheet/Plate  Cold Rolled    27  0.0164  0.0144 to 0.0184
CRS  Sheet/Plate   Cold Rolled     28   0.0149  0.0129 to 0.0169
CRS Sheet/Plate  Cold Rolled    29  0.0135  0.0115 to 0.0155
CRS Sheet/Plate  Cold Rolled    30  0.0120  0.0110 to 0.0130

 

Round Tube
 Spec. O.D., in.  O.D. Tol.
 CRS Round Tube A513-Type 5  DOM  Up to 0.499  + 0.004", - 0"
 CRS Round Tube  A513-Type 5  DOM  0.500 to 1.699  + 0.005", - 0"
 CRS Round Tube  A513-Type 5  DOM  1.700 to 2.099  + 0.006", - 0"
 CRS Round Tube  A513-Type 5  DOM  2.100 to 2.499  + 0.007", - 0"
 CRS Round Tube  A513-Type 5  DOM  2.500 to 2.899  + 0.008", - 0"
 CRS Round Tube  A513-Type 5  DOM  2.900 to 3.299  + 0.009", - 0"
 CRS Round Tube  A513-Type 5  DOM  3.300 to 3.699  + 0.010", - 0"
 CRS Round Tube  A513-Type 5  DOM  3.700 to 4.099  + 0.011", - 0"
 CRS Round Tube  A513-Type 5  DOM  4.100 to 4.499  + 0.012", - 0"
 CRS Round Tube A513-Type 5  DOM  4.500 to 4.899  + 0.013", - 0"
 CRS Round Tube A513-Type 5  DOM  4.900 to 5.299  + 0.014", - 0"
 CRS Round Tube A513-Type 5  DOM  5.300 to 5.549  + 0.015", - 0"
          
          
Spec. O.D., in.    
Up to 0.375, excl. 0.375 to 0.875, incl.  Over 0.875 to 1.875, incl.  Over 1.875 to 3.75, incl.  Over 3.75 to 15, incl.
  Spec. Wall Thickness, in. Wall Thickness Tolerance   
 CRS Round Tube  A513-Type 5  DOM  0.035  +/- 0.002"  +/- 0.002"  +/- 0.002  +/- 0.002"  ...
 CRS Round Tube   A513-Type 5  DOM  0.049  ...  +/- 0.002"  + 0.002", - 0.003"   + 0.002", - 0.003"    ...
 CRS Round Tube   A513-Type 5  DOM  0.065  ...   +/- 0.002"   + 0.002", - 0.003"   + 0.002", - 0.003"    +/- 0.004"
 CRS Round Tube   A513-Type 5  DOM  0.083  ...   +/- 0.002"   + 0.002", - 0.003"   +/- 0.003" 

 + 0.004", - 0.005"

 CRS Round Tube   A513-Type 5  DOM  0.095  ...   +/- 0.002"   + 0.002", - 0.003"    +/- 0.003"    +/- 0.005"
 CRS Round Tube   A513-Type 5  DOM  0.109  ...   + 0.002", - 0.003"   + 0.002", - 0.004"   +/- 0.003"    +/- 0.005"
 CRS Round Tube   A513-Type 5  DOM  0.120  ...   +/- 0.003"   + 0.002", - 0.004"   +/- 0.003"    +/- 0.005"
 CRS Round Tube   A513-Type 5  DOM  0.134  ...   ...  + 0.002", - 0.004"   +/- 0.003"    +/- 0.005"
 CRS Round Tube   A513-Type 5  DOM  0.148  ...   ...   + 0.002", - 0.004"   +/- 0.003"    +/- 0.005"
 CRS Round Tube   A513-Type 5  DOM  0.165  ...   ...   + 0.003", - 0.004"   + 0.003", - 0.004"   + 0.005", - 0.006"
 CRS Round Tube   A513-Type 5  DOM  0.180  ...   ...   +/- 0.004"   + 0.003", - 0.005"   +/- 0.006"
 CRS Round Tube   A513-Type 5  DOM  0.203  ...   ...   + 0.004", - 0.005"    + 0.004", - 0.005"   + 0.006", - 0.007"
 CRS Round Tube   A513-Type 5  DOM  0.220  ...   ...   + 0.004", - 0.006"    + 0.004", - 0.006"  +/- 0.007"
 CRS Round Tube   A513-Type 5  DOM  0.238  ...   ...   + 0.005", - 0.006"    + 0.005", - 0.006"   +/- 0.007"
 CRS Round Tube   A513-Type 5  DOM  0.259  ...   ...   + 0.005", - 0.006"    + 0.005", - 0.006"    +/- 0.007"
 CRS Round Tube    A513-Type 5   DOM   0.284   ...   ...   + 0.005", - 0.006"    + 0.005", - 0.006"    +/- 0.007"
 CRS Round Tube   A513-Type 5  DOM  0.300  ...   ...   +/- 0.006"  +/- 0.006"   +/- 0.008"
 CRS Round Tube   A513-Type 5  DOM  0.320  ...   ...   +/- 0.007"   +/- 0.007"   +/- 0.008"
 CRS Round Tube   A513-Type 5  DOM  0.344  ...   ...   +/- 0.008"   +/- 0.008"   +/- 0.009"
 CRS Round Tube   A513-Type 5  DOM  0.375  ...   ...   ...   +/- 0.009"   +/- 0.009"
 CRS Round Tube   A513-Type 5  DOM  0.400  ...   ...   ...   +/- 0.010"   +/- 0.010"
 CRS Round Tube   A513-Type 5  DOM  0.438  ...   ...   ...   +/- 0.011"   +/- 0.011"
 CRS Round Tube   A513-Type 5  DOM  0.460  ...   ...   ...   +/- 0.012"   +/- 0.012" 
 CRS Round Tube   A513-Type 5  DOM  0.480  ...   ...   ...   +/- 0.012"   +/- 0.012"
 CRS Round Tube   A513-Type 5  DOM  0.531  ...   ...   ...   +/- 0.013"   +/- 0.013"
 CRS Round Tube   A513-Type 5  DOM  0.563  ...   ...   ...   +/- 0.013"   +/- 0.013"
If specified wall thickness isn't listed, use next closest, largest size listed for tolerance.



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 Metric Round Tubes         
 Spec. O.D. & Wall Thickness,  mm O.D. & Wall Thickness Tol.
 CRS Round Tube  1018 metric  Cold Drawn  4mm to 32mm  +/- 0.08mm
 CRS Round Tube   1018 metric  Cold Drawn  > 32mm to 40mm  +/- 0.15mm 
 CRS Round Tube   1018 metric  Cold Drawn  42mm to 50mm  +/- 0.20mm 
 CRS Round Tube   1018 metric  Cold Drawn  > 50mm to 60mm  +/- 0.25mm
 CRS Round Tube   1018 metric  Cold Drawn  65mm to 75mm  +/- 0.30mm 
 CRS  Round Tube    1018 metric   Cold Drawn    75mm to 80mm   +/- 0.35mm


 
Rectangle Key Stock
Spec. Height/Width, in. or mm Height or Width Tol.
Cold Roll Steel Rectangle Key Stock 1018 All Heights - 0.002""



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Square Key Stock
Spec. Height, in. or mm Height Tol.
Cold Roll Steel Square Key Stock 1018 All Heights - 0.002""