ASTM-A928 2009

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A928/A928M-09a Standard Specification for Ferritic/Austenitic (Duplex) Stainless Steel Pipe Electric Fusion Welded with Addition of Filler Metal

Published By	Publication Date	Number of Pages
ASTM	2009	6

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Categories: 25.160.40 - Welded joints and welds, ASTM

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Description

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

Note 1The 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 1 Pipe shall be double welded by processes using filler metal in all passes and shall be radiographed completely.

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

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

1.3.4 Class 4 Same 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 5 Pipe 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 SI units or inch-pound 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 non-conformance with the standard. The inch-pound units shall apply unless the M designation of the specification is specified in the order.

PDF Catalog

PDF Pages	PDF Title
1	Scope Referenced Documents
2	Terminology Ordering Information General Requirements Materials and Manufacture Chemical Composition Heat Analysis
3	TABLE 1
4	Product Analysis Tensile Requirements Permissible Variations of Dimensions for Thin-Wall Pipe Transverse Guided-Bend Weld Tests Workmanship, Finish, and Appearance TABLE 2
5	Test Specimens and Methods of Testing Mechanical Tests Required Radiographic Examination Lengths Product Marking Keywords

Additional information

Standard Title	A928/A928M-09a Standard Specification for Ferritic/Austenitic (Duplex) Stainless Steel Pipe Electric Fusion Welded with Addition of Filler Metal
Published Code	ASTM
Publication Date	2009
Pages Count	6
ICS Codes	25.160.40 - Welded joints and welds

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ASTM-A928 2009

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