This specification covers grades of stainless steel tubing in sizes under 1⁄2 down to 0.050 in. (12.7 to 1.27 mm) in outside diameter and wall thicknesses less than 0.065 in. down to 0.005 in. (1.65 to 0.13 mm) for general corrosion-resisting.The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.
| Grades | UNS Designation |
|---|---|
| TP304 | S30400 |
| TP304L | S30403 |
| TP310 | S31000 |
| TP316 | S31600 |
| TP316L | S31603 |
| TP317 | S31700 |
| TP321 | S32100 |
| TP347 | S34700 |
| TP348 | S34800 |