This specification covers seamless, straight-seam welded, and heavily cold worked welded austenitic stainless steel pipe intended for high-temperature and general corrosive service. Grades TP304H, TP309H, TP309HCb, TP310H,TP310HCb, TP316H, TP321H, TP347H, and TP348H are modifications of Grades TP304, TP309Cb, TP309S, TP310Cb, TP310S, TP316, TP321, TP347, and TP348, and are intended for service at temperatures where creep and stress rupture properties are important.
| Grades |
UNS Designation |
|---|---|
| TP201 | S20100 |
| TP201LN | S20153 |
| - | S20400 |
| TPXM-19 | S20910 |
| TPXM-10 | S21900 |
| TPXM-11 | S21904 |
| TPXM-29 | S24000 |
| TP304 | S30400 |
| TP304L | S30403 |
| TP304H | S30409 |
| - | S30415 |
| TP304N | S30451 |
| TP304LN | S30453 |
| - | S30600 |
| - | S30601 |
| - | S30615 |
| TP309S | S30908 |
| TP309H | S30909 |
| TP309Cb | S30940 |
| TP309HCb | S30941 |
| - | S31002 |
| TP310S | S31008 |
| TP310H | S31009 |
| TP310Cb | S31040 |
| TP310HCb | S31041 |
| - | S31050 |
| - | S31254 |
| - | S31266 |
| - | S31272 |
| - | S31277 |
| TP316 | S31608 |
| TP316L | S31603 |
| TP316H | S31609 |
| - | S31655 |
| TP316N | S31651 |
| TP316LN | S31653 |
| - | S31355 |
| TP317 | S31700 |
| TP317L | S31703 |
| - | S31725 |
| - | S31726 |
| - | S31727 |
| - | S31730 |
| - | S32053 |
| TP321 | S32100 |
| TP321H | S32109 |
| TP347 | S34700 |
| TP347H | S34709 |
| TP347LN | S34751 |
| TP348 | S34800 |
| TP348H | S34809 |
| - | S35045 |
| - | S35315 |