Pipe and Tube Specifications

Stainless Steel Pipe and Tube Tolerance Chart

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Stainless Tube and Pipe Tolerance Chart

Round Tube
 Spec. O.D., in.  O.D. Tol. (over(+)/under(-))  Wall Thickness Tol. (over(+)/under(-))
Seamless & Welded  Up to 0.500, excl.  +/- 0.005″  +/- 15%
Seamless & Welded  0.500 to 1.5, excl.  +/- 0.005″  +/- 10%
Seamless & Welded  1.5 to 3.5, excl.  +/- 0.010″  +/- 10%
Seamless & Welded  3.5 to 5.5, excl.  +/- 0.015″  +/- 10%
Seamless & Welded  5.5 to 8, excl.  +/- 0.030″  +/- 10%
Seamless & Welded  8 to 12, excl.  +/- 0.040″  +/- 10%
Seamless & Welded  12 to 14, excl.  +/- 0.050″  +/- 10%
Metric Round Tube
   Spec. O.D., mm O.D. Tol. (over(+)/under(-))
Cold Drawn/ TGP 6mm to 30mm +/- 0.08mm
Cold Drawn/ TGP 40mm +/- 0.15mm
Cold Drawn/ TGP 50mm +/- 0.20mm
  Spec. Wall Thickness, mm Wall Thickness Tol. (over(+)/under(-))
Cold Drawn/ TGP Any +/- 10% or +/- 0.1mm (which ever value is greater)
Metric Round Tube
  Spec. O.D., mm O.D. Tol. (over(+)/under(-)) Wall Thickness Tol. (over(+)/under(-))
Bright/Solution Annealed Up to 12mm, incl. +/- 0.005″ +/- 15%
Bright/Solution Annealed Over 12mm +/- 0.005″ +/- 10%
Square Tube
  Spec. Height, in. Height Tol. (over(+)/under(-))
Welded  Up to 1.25  +/- 0.015″
Welded  Over 1.25 to 2.5, incl.  +/- 0.020″
Welded  Over 2.5 to 5.5, incl.  +/- 0.030″
Welded Over 5.5 to 8, incl.  +/- 0.060″
Wall Thickness Tolerance = +/- 10% of specified wall thickness
     
  Wall Thickness, in. Radii of Corners, max
Welded  Over 0.020 to 0.049, incl.  3/32″
Welded  Over 0.049 to 0.065, incl.  1/8″
Welded  Over 0.065 to 0.083, incl.  9/64″
Welded  Over 0.083 to 0.095, incl.  3/16″
Welded  Over 0.095 to 0.109, incl.  13/64″
Welded  Over 0.109 to 0.134, incl.  7/32″
Welded  Over 0.134 to 0.156, incl.  1/4″
Welded  Over 0.156 to 0.200, incl.   3/8″
Welded  Over 0.200 to 0.250, incl.  1/2″
Welded  Over 0.250 to 0.375, incl.  3/4″
Rectangle Tube
  Spec. Height and/or Width, in. Height and/or Width Tol. (over(+)/under(-))
Welded  Up to 1.25  +/- 0.015″
Welded  Over 1.25 to 2.5, incl.  +/- 0.020″
Welded  Over 2.5 to 5.5, incl.  +/- 0.030″
Welded Over 5.5 to 8, incl.  +/- 0.060″
Wall Thickness Tolerance = +/- 10% of specified wall thickness
     
  Wall Thickness, in. Radii of Corners, max
Welded  Over 0.020 to 0.049, incl.  3/32″
Welded  Over 0.049 to 0.065, incl.  1/8″
Welded  Over 0.065 to 0.083, incl.  9/64″
Welded  Over 0.083 to 0.095, incl.  3/16″
Welded  Over 0.095 to 0.109, incl.  13/64″
Welded  Over 0.109 to 0.134, incl.  7/32″
Welded  Over 0.134 to 0.156, incl.  1/4″
Welded  Over 0.156 to 0.200, incl.   3/8″
Welded  Over 0.200 to 0.250, incl.  1/2″
Welded  Over 0.250 to 0.375, incl.  3/4″
Pipe
  Nominal Pipe Size   O.D., in.  O.D. Tol. (over(+)/under(-)) Wall Thickness, in.  Wall Thickness Tol. (over(+)/under(-))
Schedule 5
Welded   0.500  0.840  + 1/64″, +1/32″  0.065  + 20%, – 12.5%
Welded   0.750   1.050  + 1/64″, +1/32″   0.065  + 20%, – 12.5% 
Welded   1.000  1.315  + 1/64″, +1/32″   0.065  + 20%, – 12.5% 
Welded   1.250  1.660  + 1/64″, +1/32″   0.065  + 20%, – 12.5% 
Welded   1.500  1.900  + 1/64″, +1/32″   0.065  + 20%, – 12.5% 
Welded   2.000  2.375  +/- 1/32″  0.065  + 20%, – 12.5% 
Welded   2.500  2.875  +/- 1/32″   0.083  + 20%, – 12.5% 
Welded   3.000  3.500  +/- 1/32″   0.083  + 22.5%, – 12.5%
Welded   4.000  4.500  +/- 1/32″   0.083  + 22.5%, – 12.5% 
Schedule 10 
Welded  0.375  0.675   + 1/64″, +1/32″  0.065  + 20%, – 12.5% 
Welded   0.500  0.840  + 1/64″, +1/32″   0.083  + 20%, – 12.5% 
Welded   0.750  1.050  + 1/64″, +1/32″   0.083  + 20%, – 12.5% 
Welded   1.000  1.315  + 1/64″, +1/32″   0.109  + 20%, – 12.5% 
Welded   1.250  1.660  + 1/64″, +1/32″   0.109  + 20%, – 12.5% 
Welded   1.500  1.900  + 1/64″, +1/32″   0.109  + 20%, – 12.5% 
Welded   2.000  2.375  +/- 1/32″   0.109  + 20%, – 12.5% 
Welded   2.500  2.875  +/- 1/32″   0.120  + 20%, – 12.5% 
Welded   3.000  3.500  +/- 1/32″   0.120  + 22.5%, – 12.5% 
Welded  3.500  4.000  +/- 1/32″   0.120  + 22.5%, – 12.5% 
Welded   4.000  4.500  +/- 1/32″   0.120  + 22.5%, – 12.5% 
Welded   5.000  5.563  + 1/16″, – 1/32″   0.134  + 22.5%, – 12.5% 
Welded   6.000  6.625  + 1/16″, – 1/32″   0.134  + 22.5%, – 12.5% 
Welded   8.000  8.625  + 1/16″, – 1/32″  0.148  + 22.5%, – 12.5% 
Schedule 40
Welded   0.125  0.405  + 1/64″, +1/32″  0.068  + 20%, – 12.5% 
Welded  0.250   0.540   + 1/64″, +1/32″   0.088   + 20%, – 12.5% 
Welded  0.375  0.675  + 1/64″, +1/32″   0.091  + 20%, – 12.5% 
Welded   0.500  0.840  + 1/64″, +1/32″   0.109  + 20%, – 12.5% 
Welded   0.750  1.050  + 1/64″, +1/32″   0.113  + 20%, – 12.5% 
Welded   1.000  1.315  + 1/64″, +1/32″   0.133  + 20%, – 12.5% 
Welded   1.250  1.660  + 1/64″, +1/32″   0.140  + 20%, – 12.5% 
Welded   1.500  1.900  + 1/64″, +1/32″   0.145  + 20%, – 12.5% 
Welded   2.000  2.375  +/- 1/32″   0.154  + 20%, – 12.5% 
Welded   2.500  2.875  +/- 1/32″   0.203  + 20%, – 12.5% 
Welded   3.000  3.500  +/- 1/32″   0.216  + 15%, – 12.5%
Welded   3.500  4.000  +/- 1/32″   0.226  + 15%, – 12.5% 
Welded   4.000  4.500  +/- 1/32″   0.237  + 15%, – 12.5% 
Welded   5.000  5.563  + 1/16″, – 1/32″   0.258  + 22.5%, – 12.5% 
Welded   6.000  6.625  + 1/16″, – 1/32″   0.280  + 22.5%, – 12.5% 
Welded   8.000  8.625  + 1/16″, – 1/32″  0.322  + 22.5%, – 12.5% 
Schedule 80
Welded   0.250   0.540    + 1/64″, +1/32″  0.119  + 20%, – 12.5% 
Welded  0.375  0.675  + 1/64″, +1/32″   0.126  + 20%, – 12.5% 
Welded   0.500  0.840  + 1/64″, +1/32″   0.147  + 20%, – 12.5% 
Welded   0.750  1.050  + 1/64″, +1/32″   0.154  + 20%, – 12.5% 
Welded   1.000  1.315  + 1/64″, +1/32″   0.179  + 20%, – 12.5% 
Welded   1.250  1.660  + 1/64″, +1/32″   0.191  + 20%, – 12.5% 
Welded   1.500  1.900  + 1/64″, +1/32″   0.200  + 20%, – 12.5% 
Welded   2.000  2.375  +/- 1/32″   0.218  + 20%, – 12.5% 
Welded   2.500  2.875  +/- 1/32″   0.276  + 20%, – 12.5% 
Welded   3.000  3.500  +/- 1/32″   0.300  + 15%, – 12.5% 
Welded   3.500  4.000  +/- 1/32″   0.318  + 15%, – 12.5% 
Welded   4.000  4.500  +/- 1/32″   0.337   + 15%, – 12.5% 
Welded   5.000  5.563  + 1/16″, – 1/32″  0.375  + 15%, – 12.5% 
Welded   6.000  6.625  + 1/16″, – 1/32″   0.432  + 15%, – 12.5% 
SQUARE TUBE SPECIFICATIONS

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