1.1This specification covers electric-fusion-welded austenitic chromium-nickel stainless steel pipe suitable for corrosive or high-temperature service, or both, or for general applications.
Note 1—
The dimensionless designator NPS (nominal pipe size) has been substituted in this standard for such traditional terms as “nominal diameter,” “size,” and “nominal size.” 1.2This specification covers the grades of alloy and stainless steel listed in Table 1. The selection of the proper grade and requirements for heat treatment shall be at the discretion of the purchaser, dependent on the service conditions to be encountered.
TABLE 1 Plate and Filler Metal Specifications
Grade | UNS Desig- nation | Material, Type | ASTM Plate Specification No. and Grade
| Filler Metal Classification and UNS DesignationA for ApplicableB AWS Specification
|
A5.4/A5.4M | A5.9/A5.9M
| A5.11/A5.11M | A5.14/A5.14M
| A5.22/A5.22M | A5.30/A5.30M
|
Class. | UNS | Class. | | UNS | Class. | UNS | Class. | UNS | Class. | UNS | Class. | UNS |
| |
. . . | N08020 | . . . | A240 N08020 | . . . | . . . | . . . | | . . . | . . . | . . . | . . . | . . . | . . . | . . . | . . . | . . . |
. . . | N08367 | . . . | A240 N08367 | . . . | . . . | . . . | | . . . | ENiCrMo-3 | W86112 | ERNiCrMo-3 | N06625 | . . . | . . . | . . . | . . . |
. . . | N08800 | . . . | A240 N08800 | . . . | . . . | . . . | | . . . | . . . | . . . | . . . | . . . | . . . | . . . | . . . | . . . |
. . . | N08810 | . . . | A240 N08810 | . . . | . . . | . . . | | . . . | . . . | . . . | . . . | . . . | . . . | . . . | . . . | . . . |
. . . | N08904 | . . . | A240 N08904 | . . . | . . . | . . . | | . . . | . . . | . . . | . . . | . . . | . . . | . . . | . . . | . . . |
. . . | N08926 | . . . | A240 N08926 | . . . | . . . | . . . | | . . . | ENiCrMo–3 | W86112 | ERNiCrMo–3 | N06625 | . . . | . . . | . . . | . . . |
201 | S20100 | 201 | A240 Type 201 | . . . | . . . | . . . | | . . . | . . . | . . . | . . . | . . . | . . . | . . . | . . . | . . . |
201LN | S20153 | 201LN | A240 Type 201LN | . . . | . . . | . . . | | . . . | . . . | . . . | . . . | . . . | . . . | . . . | . . . | . . . |
. . . | S20400 | . . . | A240 S20400 | E 209 | W32210 | ER209 | | S20980 | . . . | . . . | . . . | . . . | . . . | . . . | . . . | . . . |
XM-19 | S22100 | XM-19 | A240 Type XM-19 | E209 | W32210 | ER209 | | S20980 | . . . | . . . | . . . | . . . | . . . | . . . | . . . | . . . |
XM-29 | S28300 | XM-29 | A240 Type XM-29 | E240 | W32410 | ER240 | | S24080 | . . . | . . . | . . . | . . . | . . . | . . . | . . . | . . . |
304 | S30400 | 304 | A240 Type 304 | E308 | W30810 | ER308 | | S30880 | . . . | . . . | . . . | . . . | E308T | W30831 | IN308 | S30880 |
304L | S30403 | 304L | A240 Type 304 | E308L | W30813 | ER308L | | S30883 | . . . | . . . | . . . | . . . | E308LT | W30835 | IN308L | S30883 |
304H | S30409 | 304H | A240 Type 304H | E308H | W30810 | ER308 | | S30880 | . . . | . . . | . . . | . . . | E308T | W30831 | IN308 | S30880 |
. . . | S30415 | . . . | A240 S30415 | . . . | . . . | . . . | | . . . | . . . | . . . | . . . | . . . | . . . | . . . | . . . | . . . |
304N | S30451 | 304N | A240 Type 304N | E308 | W30810 | ER308 | | S30880 | . . . | . . . | . . . | . . . | E308T | W30831 | IN308 | S30880 |
304LN | S30453 | 304LN | A240 Type 304LN | E308L | W30813 | ER308L | | S30883 | . . . | . . . | . . . | . . . | E308LTT | W30835 | IN308L | S30883 |
. . . | S30600D | . . . | A240 S30600D | . . . | . . . | . . . | | . . . | . . . | . . . | . . . | . . . | . . . | . . . | . . . | . . . |
| S30815 | . . . | A240 S30815 | . . . | . . . | . . . | | . . . | . . . | . . . | . . . | . . . | . . . | . . . | . . . | . . . |
309S | S30908 | 309S | A240 Type 309S | . . . | . . . | . . . | | . . . | . . . | . . . | . . . | . . . | . . . | . . . | . . . | . . . |
309Cb | S30940 | 309Nb | A240 Type 309Cb | E309Cb | W30917 | . . . | | . . . | . . . | . . . | . . . | . . . | . . . | . . . | . . . | . . . |
310S | S31008 | 310S | A240 Type 310S | . . . | . . . | . . . | | . . . | . . . | . . . | . . . | . . . | . . . | . . . | . . . | . . . |
310Cb | S31040 | 310Cb | A240 Type 310Cb | E310NB | W31017 | . . . | | . . . | . . . | . . . | . . . | . . . | . . .. | . . . | . . . | . . . |
. . . | S31254 | . . . | A240 S31254 | . . . | . . . | . . . | | . . . | ENiCrMo-3 | W86112 | ERNiCrMo-3 | N06625 | . . . | . . . | . . . | . . . |
. . . | S31266 | . . . | A240 S31266 | . . . | . . . | . . . | | . . . | ENiCrMo–13 | W86059 | ERNiCrMo–13 | N06059 | . . . | . . . | . . . | . . . |
. . . | S31266 | . . . | A240 S31266 | . . . | . . . | . . . | | . . . | ENiCrMo–10 | W86022 | ERNiCrMo–10 | N06022 | . . . | . . . | . . . | . . . |
316 | S31600 | 316 | A240 Type 316 | E316 | W31610 | ER316 | | S31680 W31640 | . . . | . . . | . . . | . . . | E316T | W31631 | IN316 | S31680 |
316L | S31603 | 316L | A240 Type 316L | E316L | W31613 | ER316L | | S31683 | . . . | . . . | . . . | . . . | E316LT | W31635 | IN316L | S31683 |
316H | S31609 | 316H | A240 Type 316H | E316H | W31610 | ER316H | | S31680 | . . . | . . . | . . . | . . . | E316T | W31631 | IN316 | S31680 |
316N | S31651 | 316N | A240 Type 316N | E316 | W31610 | ER316 | | S31680 | . . . | . . . | . . . | . . . | E316T | W31631 | IN316 | S31680 |
316LN | S31653 | 316LN | A240 Type 316LN | E316L | W31613 | ER316L | | S31683 | . . . | . . . | . . . | . . . | E316LT | W31635 | IN316L | S31683 |
317 | S31700 | 317 | A240 Type 317 | E317 | W31710 | ER 317 | | S31780 | . . . | . . . | . . . | . . . | E317LT | W31735 | . . . | . . . |
317L | S31703 | 317L | A240 Type 317L | E317L | W34713 | ER317L | | S31783 | . . . | . . . | . . . | . . . | E317LT | W31735 | . . . | . . . |
. . . | S31725 | . . . | A240 S31725 | . . . | . . . | . . . | | . . . | ENiCrMo-3 | W86112 | ERNiCrMo-3 | N06625 | . . . | . . . | . . . | . . . |
. . . | S31726 | . . . | A240 S31726 | . . . | . . . | . . . | | . . . | ENiCrMo-3 | W86112 | ERNiCrMo-3 | N06625 | . . . | . . . | . . . | . . . |
. . . | S31727 | . . . | A240 S31727 | . . . | . . . | . . . | | . . . | . . . | . . . | . . . | . . . | . . . | . . . | . . . | . . . |
. . . | S32050 | . . . | A240 S32050 | . . . | . . . | . . . | | . . . | . . . | . . . | . . . | . . . | . . . | . . . | . . . | . . . |
. . . | S32053 | . . . | A240 S32053 | . . . | . . . | . . . | | . . . | . . . | . . . | . . . | . . . | . . . | . . . | . . . | . . . |
321 | S32100 | 321 | A240 Type 321 | E347 | W34710 | ER321 ER347 | | S32180 S34780 | . . . | . . . | . . . | . . . | E347T | W34731 | IN348 | S34780 |
321HC | S32109C | 321HC | A240 Type 321HC | | W34710 | ER321 ER347 | | S32180 S34780 | | | | | E347T | W34731 | IN348 | S34780 |
. . . | S32654 | . . . | A240 S32654 | . . . | . . . | . . . | | . . . | . . . | . . . | . . . | . . . | . . . | . . . | . . . | . . . |
. . . | S34565 | . . . | A240 S34565 | . . . | . . . | . . . | | . . . | . . . | . . . | . . . | . . . | . . . | . . . | . . . | . . . |
347 | S34700 | 347 | A240 Type 347 | E347 | W34710 | ER347 | | S34780 | . . . | . . . | . . . | . . . | E347T | W34731 | IN348 | S34780 |
347HC | S34709C | 347HC | A240 Type 347HC | | | ER347 | | S34780 | | | | | E347T | W34731 | IN348 | S34780 |
347LN | S34751 | | A240 Type 347LN | . . . | . . . | . . . | | . . . | . . . | . . . | . . . | . . . | . . . | . . . | . . . | . . . |
348 | S34800 | 348 | A240 Type 348 | E347 | W34710 | ER347 | | S34780 | . . . | . . . | . . . | . . . | E347T | W34731 | IN348 | S34780 |
1.3Five classes of pipe are covered as follows:
1.3.1Class 1—Pipe shall be double welded by processes employing filler metal in all passes and shall be completely radiographed.
1.3.2Class 2—Pipe shall be double welded by processes employing filler metal in all passes. No radiography is required.
1.3.3Class 3—Pipe shall be single welded by processes employing filler metal in all passes and shall be completely radiographed.
1.3.4Class 4—Same as Class 3 except that the weld pass exposed to the inside pipe surface may be made without the addition of filler metal (see 6.2.2.1 and 6.2.2.2).
1.3.5Class 5—Pipe shall be double welded by processes employing filler metal in all passes and shall be spot radiographed.
1.4Supplementary requirements covering provisions ranging from additional testing to formalized procedures for manufacturing practice are provided. Supplementary Requirements S1 through S6 are included as options to be specified when desired.
1.5The values stated in either inch-pound units or SI units are to be regarded separately as standard. Within the text, the SI units are shown in brackets. 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 nonconformance with the specification. The inch-pound units shall apply unless the “M” designation of this specification is specified in the order.