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ASTM A928/A928M-09

Standard Specification for Ferritic/Austenitic (Duplex) Stainless Steel Pipe Electric Fusion Welded with Addition of Filler Metal

Standard Specification for Ferritic/Austenitic (Duplex) Stainless Steel Pipe Electric Fusion Welded with Addition of Filler Metal A0928_A0928M-09 ASTM|A0928_A0928M-09|en-US Standard Specification for Ferritic/Austenitic (Duplex) Stainless Steel Pipe Electric Fusion Welded with Addition of Filler Metal Standard new BOS Vol. 01.01 Committee A01
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Abstract

This specification covers standard requirements for ferritic/austenitic (duplex) stainless steel pipe that is electric fusion welded with addition of filler metal suitable for corrosive service. Heat treatment shall be performed after welding and in accordance with specified temperature and quench conditions. Several grades of ferritic/austenitic steel shall conform to the requirements of the applicable specification and grade designation. Heat and product analyses shall be conducted and shall conform to the requirements for the particular grade. The plate used in making the pipe shall conform to the required tensile properties. The steel pipe shall undergo several mechanical tests including transverse tension test, transverse guided-bend test, nondestructive test, hydrostatic test, and nondestructive electric test.

Scope

1.1 This specification covers electric-fusion-welded steel pipe suitable for corrosive service.

Note 1—The dimensionless designator NPS (nominal pipe size) has been substituted in this specification for traditional terms such as nominal diameter, size, and nominal size.

1.2 This specification covers grades of ferritic/austenitic steel as indicated in Table 1. The selection of the proper alloy 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 1Pipe shall be double welded by processes using filler metal in all passes and shall be radiographed completely.

1.3.2 Class 2Pipe shall be double welded by processes using filler metal in all passes. No radiograph is required.

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

1.3.4 Class 4Same as Class 3, except that the weld pass exposed to the inside pipe surface is permitted to be made without the addition of filler metal (see 6.2.2.1 and 6.2.2.2).

1.3.5 Class 5Pipe shall be double welded by processes using 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 S4 are included as options to be specified in the purchase order 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 are not exact equivalents; therefore, each system must 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 the specification is specified in the order.

TABLE 1 Pipe and Filler Metal Specifications

UNS
Designation
GradeA ASTM Plate Specification No. and Grade A5.4 A5.9 A5.11 A5.14 A5.22 A5.30
Class UNS Class UNS Class UNS Class UNS Class UNS Class UNS
S31200 . . . A 240 S31200 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
S31260 . . . A 240 S31260 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
S31500 . . . A 240 S31500 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
S31803 . . . A 240 S31803 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
S32003. . . A 240 S32003. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
S32202A 240 S32202. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
S32205 2205 A 240 S32205. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
S32304 2304 A 240 S32304 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
S32506. . . A 240 S32506. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
S32550 255 A 240 S32550 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
S32750 2507 A 240 S32750 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
S32900 329 BA 240 type 329 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
S32950 . . . A 240 S32950 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
S32760. . . A 240 S32760 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
S32520. . . A 240 S32520 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

A Except as indicated, common name, not a trademark, widely used, not associated with any one producer.

B A grade designation originally assigned by the American Iron and Steel Institute (AISI).

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Details
Book of Standards Volume: 01.01
Developed by Subcommittee: A01.10
Pages: 6
DOI: 10.1520/A0928_A0928M-09
ICS Code: 25.160.40