© 2024 Team Tube. All Rights Reserved
A member of the Reliance, Inc. family of companies
| Outside Diameter Tolerances (inches) | |||
|---|---|---|---|
| Specified Size O.D. (inches) | As Rolled or Annealed Plus & Minus | Oil Quenched & Tempered Plus & Minus | |
| 2.000 to 2.499 | 0.017" | 0.027" | |
| 2.500 to 2.999 | 0.019" | 0.029" | |
| 3.000 to 3.499 | 0.021" | 0.032" | |
| 3.500 to 3.999 | 0.023" | 0.035" | |
| 4.000 to 4.499 | 0.025" | 0.038" | |
| 4.500 to 4.999 | 0.027" | 0.041" | |
| 5.000 to 5.499 | 0.029" | 0.044" | |
| 5.500 to 5.999 | 0.031" | 0.047" | |
| 6.000 to 6.499 | 0.033" | 0.050" | |
| 6.500 to 6.999 | 0.035" | 0.053" | |
| 7.000 to 7.499 | 0.037" | 0.056" | |
| 7.500 to 7.999 | 0.040" | 0.060" | |
| Outside Diameter Tolerances (inches) | |||
|---|---|---|---|
| Specified Size O.D. (inches) | As Rolled or Annealed Plus & Minus | Oil Quenched & Tempered Plus & Minus | |
| 8.000 to 8.499 | 0.043" | 0.064" | |
| 8.500 to 8.999 | 0.045" | 0.068" | |
| 9.000 to 9.499 | 0.048" | 0.072" | |
| 9.500 to 9.999 | 0.050" | 0.076" | |
| 10.000 to 10.499 | 0.053" | 0.080" | |
| 10.500 to 11.000 | 0.055" | 0.084" | |
| 11.001 to 11.499 | 1% O.D. | Consult | |
| 11.500 to 11.999 | 1% O.D. | Mill | |
| 12.000 to 13.999 | 1% O.D. | Consult | |
| 14.000 to 15.999 | 1% O.D. | Mill | |
| 16.000 to 17.999 | 1% O.D. | Consult | |
| 18.000 to 24.000 | 1% O.D. | Mill | |
| Wall Thickness | Maximum Over & Under Nominal Wall | |||
|---|---|---|---|---|
| 2" to 11" O.D. | Over 11" O.D. | |||
| Plus | Minus | Plus | Minus | |
| Walls Under 10% of Nominal Outside Diameter | 10.0% | 10.0% | 12.5% | 12.5% |
| Walls 10% to 25% of the Nominal O. D., Inclusive | 7.5% | 7.5% | 12.5% | 12.5% |
| Walls Over 25% of the Nominal Outside Diameter | 7.5% | 7.5% | 12.5% | 12.5% |
| Outside Diameter Size Range (inches) | Wall % of Outside Diameter | Maximum Deviation from Straight | ||
|---|---|---|---|---|
| Total inches in any 3 feet | Total in Entire Length: Inches per Foot of Length | |||
| Length 3 to 22 Feet | Length Under 3 to Over 22 Feet | |||
| Up to 5.000" | 3% O.D. & Over | 0.030" | 0.007" | 0.010" |
| 5.001 / 8.000" | 4% O.D. & Over | 0.045" | 0.010" | 0.015" |
| 8.001 / 10.750" | 4% O.D. & Over | 0.060" | 0.015" | 0.020" |
| For Machined Parts Size OD (inches) | Cold Drawn Tubing | Hot Rolled Tubing | ||
|---|---|---|---|---|
| Machining Allowances on Diameter (inches) | Machining Allowances on Diameter (inches) | |||
| O.D. | I.D. | O.D. | I.D. | |
| Up to 1.500 | 0.020 | 0.020 | ... | ... |
| 1.500 to 2.500 Excl. | 0.025 | 0.025 | 0.045 | 0.045 |
| 2.500 to 3.500 Excl. | 0.035 | 0.035 | 0.060 | 0.060 |
| 3.500 to 4.500 Excl. | 0.045 | 0.045 | 0.075 | 0.075 |
| 4.500 to 5.500 Excl. | 0.055 | 0.055 | 0.085 | 0.085 |
| 5.500 to 6.500 Excl. | 0.070 | 0.070 | 0.115 | 0.115 |
| 6.500 to 8.000 Excl. | 0.080 | 0.080 | 0.125 | 0.125 |
| 8.000 to 10.750 Excl. | 0.100 | 0.100 | ... | ... |
| 10.750 to 12.000 Excl. | 0.125 | 0.125 | ... | ... |
| Length (inches) | Camber Allowance (inches) | |||||
|---|---|---|---|---|---|---|
| 5" OD and Smaller | Over 5" OD to 8" OD Inclusive | Over 8" OD | ||||
| O.D. | I.D. | O.D. | I.D. | O.D. | I.D. | |
| 6" | 0.005 | 0.005 | 0.008 | 0.008 | 0.010 | 0.010 |
| 12" | 0.010 | 0.010 | 0.015 | 0.015 | 0.020 | 0.020 |
| 18" | 0.015 | 0.015 | 0.023 | 0.023 | 0.030 | 0.030 |
| 24" | 0.020 | 0.020 | 0.030 | 0.030 | 0.040 | 0.040 |
| 30" | 0.025 | 0.025 | 0.038 | 0.038 | 0.050 | 0.050 |
| 36" | 0.030 | 0.030 | 0.045 | 0.045 | 0.060 | 0.060 |
| 42" | 0.035 | 0.035 | 0.053 | 0.053 | 0.070 | 0.070 |
| 48" | 0.040 | 0.040 | 0.060 | 0.060 | 0.080 | 0.080 |
Tubing and bars are measured for straightness using Depth of Arc Measurements (DOA). Straightness should be measured with indicators and this method requires rotating the tube length in a simple roller fixture and recording several indicator readings along the length. This straightness inspection will generate a 'straightness per foot' answer. Straightness tolerances are not measured on a lathe.
© 2024 Team Tube. All Rights Reserved
A member of the Reliance, Inc. family of companies