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 DesignationA for ApplicableB AWS Specification
				A5.4		A5.9			A5.11		A5.14		A5.22		A5.30
				Class.	UNS	Class.		UNS	Class.	UNS	Class.	UNS	Class.	UNS	Class.	UNS
201	S20100	201	A 240 Type 201	. . .	. . .	. . .		. . .	. . .	. . .	. . .	. . .	. . .	. . .	. . .	. . .
201LN	S20153	201LN	A 240 Type 201LN	. . .	. . .	. . .		. . .	. . .	. . .	. . .	. . .	. . .	. . .	. . .	. . .
304	S30400	304	A 240 Type 304	E308	W30810	ER308		S30880 W30840	. . .	. . .	. . .	. . .	E308T	W30831	IN308	S30880
304L	S30403	304L	A 240 Type 304	E308L	W30813	ER308L		S30883 W30843	. . .	. . .	. . .	. . .	E308LT	W30835	IN308L	S30883
304N	S30451	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	. . .	. . .	. . .	. . .	W308LT	W30835	IN308L	S30883
304H	S30409	304H	A 240 Type 304H	E308H	W30810	ER308		S30880 W30840	. . .	. . .	. . .	. . .	E308T	W30831	IN308	S30880
309Cb	S30940	309Cb	A 240 Type 309Cb	E309Cb	. . .	. . .		. . .	. . .	. . .	. . .	. . .	. . .	. . .	. . .	. . .
309S	S30908	309S	A 240 Type 309S	. . .	. . .	. . .		. . .	. . .	. . .	. . .	. . .	. . .	. . .	. . .	. . .
310Cb	S31040	310Cb	A 240 Type 310Cb	E310Cb	. . .	. . .		. . .	. . .	. . .	. . .	. . .	. . ..	. . .	. . .	. . .
310S	S31008	310S	A 240 Type 310S	. . .	. . .	. . .		. . .	. . .	. . .	. . .	. . .	. . .	. . .	. . .	. . .
316	S31600	316	A 240 Type 316	E316	W31610	ER316		S31680 W31640	. . .	. . .	. . .	. . .	E316T	W31631	IN316	S31680
316L	S31603	316L	A 240 Type 316L	E316L	W31613	ER316L		S31683 W31643	. . .	. . .	. . .	. . .	E316LT	W31635	IN316L	S31683
316N	S31651	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	W31635	IN316L	S31683
316H	S31609	316H	A 240 Type 316H	E316H	W31610	ER316H		S31680 W31640	. . .	. . .	. . .	. . .	E316T	W31631	IN316	S31680
317	S31700	317	A 240 Type 317	E317	W31710	ER 317		S31780 W31740	. . .	. . .	. . .	. . .	E317LT	W31735	. . .	. . .
317L	S31703	317L	A 240 Type 317L	E317L	W34713	ER317L		S31783 W31743	. . .	. . .	. . .	. . .	E317LT	W31735	. . .	. . .
. . .	S31727	. . .	A 240 S31727	. . .	. . .	. . .		. . .	. . .	. . .	. . .	. . .	. . .	. . .	. . .	. . .
. . .	S32053	. . .	A 240 S32053	. . .	. . .	. . .		. . .	. . .	. . .	. . .	. . .	. . .	. . .	. . .	. . .
321	S32100	321	A 240 Type 321	E347	W34710	ER321 ER347		S32180 W32140 S34780 W34740	. . .	. . .	. . .	. . .	E347T	W34733	IN348	S34780
321HC	S32109C	321HC	A 240 Type 321HC	E321H	W34710	ER321 ER347		S32180 W32140 S34780 W34740					E347T	W34731	IN348	S34780
347	S34700	347	A 240 Type 347	E347	W34710	ER347		S34780 W34740	. . .	. . .	. . .	. . .	E347T	W34733	IN348	S34780
347HC	S34709C	347HC	A 240 Type 347HC	E347H	E347H	W34710		ER347	S34780 W34740				E347T	W34731	IN348	S34780
348	S34800	348	A 240 Type 348	E347	W34710	ER347		S34780 W34740	. . .	. . .	. . .	. . .	E347T	W34733	IN348	S34780
XM-19	S22100	XM-19	A 240 Type XM-19	E209	W32210	ER209		S20980 W32240	. . .	. . .	. . .	. . .	. . .	. . .	. . .	. . .
XM-29	S28300	XM-29	A 240
국제분류(ICS)코드
페이지수	7
Edition	08a

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