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This specification covers electric-fusion-welded austenitic chromium-nickel stainless steel pipe suitable for corrosive or high-temperature service, or both, or for general applications. The pipes shall be sorted into five different classes. Class 1 pipes shall be double welded by processes employing filler metal in all passes and shall be completely radiographed. Pipes of Class 2 shall be double welded by processes employing filler metal in all passes with no radiography. Both Class 3 and Class 4 pipes shall be single welded except that the weld pass of the latter exposed to the inside pipe surface may be without the addition of filler metal. Pipes of Class 5 shall be double welded by processes employing filler metal and shall be spot radiographed. Weld defects shall be repaired by removal to sound metal and rewelding. Subsequent heat treatment shall be as required on the original welds. The finished pipes shall be subjected to transverse tension test, transverse guided-bend weld test, and hydrostatic test.

Область применения

1.1 This 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.”

1.2 This 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.

1.3 Five classes of pipe are covered as follows:

1.3.1 Class 1—Pipe shall be double welded by processes employing filler metal in all passes and shall be completely radiographed.

1.3.2 Class 2—Pipe shall be double welded by processes employing filler metal in all passes. No radiography is required.

1.3.3 Class 3—Pipe shall be single welded by processes employing filler metal in all passes and shall be completely radiographed.

1.3.4 Class 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).

1.3.5 Class 5—Pipe shall be double welded by processes employing filler metal in all passes and shall be spot radiographed.

1.4 Supplementary 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.

1.5 The 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.

TABLE 1 Plate and Filler Metal Specifications

Grade
UNS
Desig-
nation
Material,
Type
ASTM Plate Specification No.
and Grade
Filler Metal Classification and UNS Designation^A for Applicable^B AWS Specification
A5.4
A5.9
A5.11
A5.14
A5.22
A5.30
Class.UNSClass. UNS Class.UNSClass.UNSClass.UNS Class. UNS 201S20100201 A 240
Type 201. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 201LNS20153201LN A 240
Type 201LN. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 304 S30400 304 A 240
Type 304 E308 W30810 ER308 S30880
W30840 . . . . . .. . . . . . E308T W30831IN308 S30880 304L S30403304L A 240
Type 304 E308L W30813ER308L S30883
W30843 . . .. . . . . . . . . E308LTW30835 IN308L S30883 304NS30451 304N A 240
Type 304N E308 W30810 ER308 S30880
W30840 . . . . . . . . . . . .E308T W30831 IN308 S30880 304LN S30453 304LN A 240
Type 304LN E308L W30813 ER308L S30883
W30843 . . . . . .. . . . . . W308LTW30835IN308L S30883 304H S30409304H A 240
Type 304H E308H W30810ER308 S30880
W30840 . . .. . . . . . . . . E308T W30831 IN308 S30880 309Cb S30940309Cb A 240
Type 309Cb E309Cb. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 309SS30908309S A 240
Type 309S. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 310CbS31040310Cb A 240
Type 310Cb E310Cb. . . . . . . . . . . .. . . . . . . . .. . .. . . .. . . . . . 310SS31008310S A 240
Type 310S. . . . . .. . .. . . . . . . . .. . . . . . . . . . . . . . . . . . 316 S31600 316 A 240
Type 316E316 W31610 ER316 S31680
W31640 . . . . . .. . . . . . E316T W31631IN316 S31680 316L S31603316L A 240
Type 316L E316L W31613ER316L S31683
W31643 . . .. . . . . . . . . E316LTW31635 IN316L S31683 316NS31651 316N A 240
Type 316N E316 W31610 ER316 S31680
W31640 . . . . . . . . . . . .E316T W31631 IN316 S31680 316LN S31653 316LN A 240
Type 316LN E316L W31613 ER316L S31683
W31643 . . . . . .. . . . . . E316LT W31635IN316L S31683 316H S31609316H A 240
Type 316H E316H W31610ER316H S31680
W31640 . . .. . . . . . . . . E316T W31631 IN316 S31680 317S31700317 A 240
Type 317E317W31710ER 317S31780
W31740. . .. . .. . .. . .E317LTW31735. . .. . . 317LS31703317L A 240
Type 317LE317LW34713ER317LS31783
W31743. . .. . .. . .. . .E317LTW31735. . .. . . . . . S31727. . . A 240
S31727. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . S32053. . . A 240
S32053. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 321S32100 321 A 240
Type 321 E347 W34710ER321

ER347

S32180
W32140
S34780
W34740. . . . . . . . . . . .E347T W34733 IN348 S34780 321H^CS32109^C321H^C A 240
Type 321H^CE321HW34710ER321

ER347S32180
W32140
S34780
W34740E347TW34731IN348S34780 347 S34700 347 A 240
Type 347E347 W34710 ER347 S34780
W34740 . . . . . .. . . . . . E347T W34733IN348 S34780 347H^CS34709^C347H^C A 240
Type 347H^CE347HE347HW34710ER347S34780
W34740E347TW34731IN348S34780 348 S34800348 A 240
Type 348 E347 W34710ER347 S34780
W34740 . . .. . . . . . . . . E347T W34733 IN348 S34780 XM-19S22100 XM-19 A 240
Type XM-19 E209 W32210 ER209 S20980
W32240 . . . . . . . . . . . .. . . . . . . . . . . . XM-29 S28300 XM-29 A 240
Type XM-29 E240 W32410 ER240 S23980
W32440 . . . . . .. . . . . . . . . . . .. . . . . . . . . S31254 . . . A 240
S31254 . . .. . . . . . . . .ENiCrMo-3 W86112 ERNiCrMo-3 N06625 . . . . . . . . . . . . . . .S30815 . . . A 240
S30815. . . . . . . . . . . . . . . . . .. . . . . . . . . . . .. . . . . . . . . S31725 . . . A 240
S31725 . . .. . . . . . . . .ENiCrMo-3 W86112 ERNiCrMo-3 N06625 . . . . . . . . . . . . . . .S31726 . . . A 240
S31726. . . . . . . . . . . .ENiCrMo-3 W86112 ERNiCrMo-3 N06625 . . . . . . . . . . . . . . . S30600^D . . . A 240
S30600^D. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . .S34565 . . . A 240
S34565. . .. . .. . . . . .. . .. . .. . . . . .. . .. . .. . .. . . . . .S30415 . . . A 240
S30415. . .. . .. . . . . .. . .. . .. . . . . .. . .. . .. . .. . . . . .S32654 . . . A 240
S32654. . .. . .. . . . . .. . .. . .. . . . . .. . .. . .. . .. . . . . .S31266 . . . A 240
S31266. . .. . .. . .. . .ENiCrMo–13 W86059ERNiCrMo–13N06059. . . . . .. . .. . . . . .S31266 . . . A 240
S31266. . .. . .. . .. . .ENiCrMo–10 W86022ERNiCrMo–10N06022. . . . . .. . .. . . . . .S32050 . . . A 240
S32050. . .. . .. . .. . .. . . . . .. . .. . .. . .. . . . . .. . . . . . N08367 . . . A 240
N08367 . . . . . . . . . . . .ENiCrMo-3 W86112 ERNiCrMo-3 N06625. . . . . . . . . . . . . . .N08904 . . . A 240
N08904. . .. . .. . .. . .. . . . . .. . .. . .. . .. . . . . .. . . . . .N08926 . . . A 240
N08926. . .. . .. . .. . .ENiCrMo–3 W86112ERNiCrMo–3 N06625. . . . . .. . .. . . . . .N08800 . . . A 240
N08800. . .. . .. . .. . .. . . . . .. . .. . .. . .. . . . . .. . . . . .N08810 . . . A 240
N08810. . .. . .. . .. . .. . . . . .. . .. . .. . .. . . . . .. . . . . .N08020 . . . A 240
N08020. . .. . .. . .. . .. . . . . .. . .. . .. . .. . . . . .. . . . . .S20400. . . A 240
S20400E 209W32210ER209

S20980
W32240. . .. . .. . .. . .. . .. . .. . .. . .

^A New designation established in accordance with Practice E 527and SAE J1086.

^B Choice of American Welding Society specification depends on the welding process used.

^C Minimum carbon content of the filler metal shall be 0.040 mass %.

^D In previous editions, S30600 was incorrectly shown as S01815.