This specification covers grades of seamless, welded, and heavily cold worked welded austenitic and ferritic/ austenitic stainless steel sanitary tubing intended for use in the dairy and food industry and having special surface finishes. Pharmaceutical quality may be requested, as a supplementary requirement. This specification covers tubes in sizes up to and including 12 in. [300 mm] in outside diameter. The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.
| Grades | UNS Designation |
|---|---|
| TP304 | S30400 |
| TP304L | S30403 |
| - | S31254 |
| TP316 | S31600 |
| TP316L | S31603 |
| - | N08926 |
| - | N08367 |
| - | S31803 |
| - | S32205 |
| - | S32750 |
| 2003 | S32003 |