This specification2 covers hot- and cold-finished bars of stainless steel, including rounds, squares, and hexagons, and hot-rolled or extruded shapes such as angles, tees, and channels for use in boiler and pressure vessel construction.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.Unless the order specifies the applicable “M” specification designation, the material shall be furnished to the inch pound units.
| Material | UNS Designation | Grade Type |
|---|---|---|
| Austenitic Stainless Steel | N08020 | Alloy 20 |
| N08367 | ... | |
| N08800 | 800 | |
| N08810 | 800H | |
| N08811 | ... | |
| N08700 | ... | |
| N08904 | 904L | |
| N08925 | ... | |
| N08926 | ... | |
| S20161 | ... | |
| S20910 | XM-19 | |
| S21600 | XM-17 | |
| S21603 | XM-18 | |
| S21800 | ... | |
| S21904 | XM-11 | |
| S24000 | XM-29 | |
| S30200 | 302 | |
| S30400 | 304 | |
| S30403 | 304L | |
| S30409 | 304H | |
| S30451 | 304N | |
| S30453 | 304LN | |
| S30600 | . . . | |
| S30815 | . . . | |
| S30908 | 309S | |
| S30909 | 309H | |
| S30940 | 309Cb | |
| S30880 | ER308E | |
| S31008 | 310S | |
| S31009 | 310H | |
| S31040 | 310Cb | |
| S31050 | . . . | |
| S31254 | . . . | |
| S31600 | 316 | |
| S31603 | 316L | |
| S31609 | 316H | |
| S31635 | 316Ti | |
| S31640 | 316Cb | |
| S31651 | 316N | |
| S31653 | 316LN | |
| S31700 | 317 | |
| S31725 | . . . | |
| S31726 | . . . | |
| S31727 | . . . | |
| S32050 | . . . | |
| S32053 | . . . | |
| S32100 | 321 | |
| S32109 | 321H | |
| S32615 | . . . | |
| S32654 | . . . | |
| S33228 | . . . | |
| S34565 | . . . | |
| S34700 | 347 | |
| S34709 | 347H | |
| S34800 | 348 | |
| S34809 | 348H | |
| S35315 | . . . | |
| S38815 | . . . | |
| Austenitic-Ferritic Grades | S31803 | . . . |
| S32101 | . . . | |
| S32202 | . . . | |
| S32205 | . . . | |
| S32506 | . . . | |
| S32550 | . . . | |
| S32750 | . . . | |
| S32760G | . . . | |
| S32906 | . . . | |
| S32950 | . . . | |
| S39277 | . . . | |
| S82441 | . . . | |
| Ferritic Grades | S40500 | 405 |
| S43000 | 430 | |
| S43035 | 439 | |
| S44400 | 444 | |
| S44627 | XM-27 | |
| S44700 | ... | |
| S44800 | ... | |
| Martensitic Grades | S40300 | 403 |
| S41000 | 410 | |
| S41040 | XM-30 | |
| S41400 | 414 | |
| S41425 | ... | |
| S41500 | ... | |
| S43100 | 431 |