Metric Tubing Gauge Chart
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Type SS 316, TIG Welded & Plug Drawn, Medical Grade
*** Typically manufactured closer to nominal OD & ID ***
| NOMINAL (MM) | TOLERANCES | ||||
| SIZE | OD | ID | WALL | OD | ID |
| 1.0 X 0.5 | 1.0 | 0.5 | .250 | ±0.1 | ±0.1 |
| 2.0 X 1.0 | 2.0 | 1.0 | .500 | ±0.1 | ±0.1 |
| 2.0 X 1.2 | 2.0 | 1.2 | .400 | ±0.1 | ±0.1 |
| 2.0 X 1.5 | 2.0 | 1.5 | .250 | ±0.1 | ±0.1 |
| 3.0 X 2.0 | 3.0 | 2.0 | .500 | ±0.1 | ±0.1 |
| 3.0 X 2.2 | 3.0 | 2.2 | .400 | ±0.1 | ±0.1 |
| 3.0 X 2.5 | 3.0 | 2.5 | .250 | ±0.1 | ±0.1 |
| 4.0 X 3.0 | 4.0 | 3.0 | .500 | ±0.1 | ±0.1 |
| 4.0 X 3.2 | 4.0 | 3.2 | .400 | ±0.1 | ±0.1 |
| 4.0 X 3.5 | 4.0 | 3.5 | .250 | ±0.1 | ±0.1 |
| 5.0 X 4.0 | 5.0 | 4.0 | .500 | ±0.1 | ±0.1 |
| 5.0 X 4.2 | 5.0 | 4.2 | .400 | ±0.1 | ±0.1 |
| 5.0 X 4.5 | 5.0 | 4.5 | .250 | ±0.1 | ±0.1 |
| 6.0 X 5.0 | 6.0 | 5.0 | .500 | ±0.1 | ±0.1 |
| 6.0 X 5.2 | 6.0 | 5.2 | .400 | ±0.1 | ±0.1 |
| 6.0 X 5.5 | 6.0 | 5.5 | .250 | ±0.1 | ±0.1 |
| 7.0 X 6.0 | 7.0 | 6.0 | .500 | ±0.1 | ±0.1 |
| 7.0 X 6.2 | 7.0 | 6.2 | .400 | ±0.1 | ±0.1 |
| 7.0 X 6.5 | 7.0 | 6.5 | .250 | ±0.1 | ±0.1 |
| 8.0 X 7.0 | 8.0 | 7.0 | .500 | ±0.1 | ±0.1 |
| 8.0 X 7.2 | 8.0 | 7.2 | .400 | ±0.1 | ±0.1 |
| 8.0 X 7.5 | 8.0 | 7.5 | .250 | ±0.1 | ±0.1 |
| 10.0 X 9.0 | 10.0 | 9.0 | .500 | ±0.1 | ±0.1 |
| 12.0 X 11.0 | 12.0 | 11.0 | .500 | ±0.1 | ±0.1 |
| 16.0 X 15.0 | 16.0 | 15.0 | .500 | ±0.1 | ±0.1 |