ASTM A691/A691M-19
Standard Specification for Carbon and Alloy Steel Pipe, Electric-Fusion-Welded for High-Pressure Service at High Temperatures

Standard No.

ASTM A691/A691M-19

Release Date

2019

Published By

American Society for Testing and Materials (ASTM)

Latest

ASTM A691/A691M-19

Scope

1.1 This specification2 covers carbon and alloy steel pipe, electric-fusion-welded with filler metal added, fabricated from pressure-vessel-quality plate of several analyses and strength levels and suitable for high-pressure service at high temperatures. Heat treatment may or may not be required to attain the desired mechanical properties or to comply with applicable code requirements. Supplementary requirements are provided for use when additional testing or examination is desired. 1.2 The specification nominally covers pipe 16 in. [400 mm] in outside diameter and larger with wall thicknesses up to 3 in. [75 mm] inclusive. Pipe having other dimensions may be furnished provided it complies with all other requirements of this specification. 1.3 Several grades and classes of pipe are provided. 1.3.1 Grade designates the type of plate used as listed in Table 1. 1.3.2 Class designates the type of heat treatment performed in the manufacture of the pipe, whether the weld is radiographically examined, and whether the pipe has been pressure tested as listed in 1.3.3. 1.3.3 Class designations are as follows (Note 1): Class Heat Treatment on Pipe Radiography, see Section Pressure Test, see Section 10 none none none 11 none 9 none 12 none 9 8.3 13 none none 8.3 20 stress relieved, see 5.3.1 none none 21 stress relieved, see 5.3.1 9 none 22 stress relieved, see 5.3.1 9 8.3 23 stress relieved, see 5.3.1 none 8.3 30 normalized, see 5.3.2 none none 31 normalized, see 5.3.2 9 none 32 normalized, see 5.3.2 9 8.3 33 normalized, see 5.3.2 none 8.3 40 normalized and tempered, see 5.3.3 none none 41 normalized and tempered, see 5.3.3 9 none 42 normalized and tempered, see 5.3.3 9 8.3 43 normalized and tempered, see 5.3.3 none 8.3 50 quenched and tempered, see 5.3.4 none none 51 quenched and tempered, see 5.3.4 9 none 52 quenched and tempered, see 5.3.4 9 8.3 53 quenched and tempered, see 5.3.4 none 8.3 NOTE 1—Selection of materials should be made with attention to temperature of service. For such guidance, Specification A20/A20M may be consulted. 1.4 Optional requirements of a supplementary nature are provided, calling for additional tests and control of repair welding, 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 this specification is specified in the order. 1 This specification is under the jurisdiction of ASTM Committee A01 on Steel, Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee A01.09 on Carbon Steel Tubular Products. Current edition approved Nov. 1, 2019. Published November 2019. Originally approved in 1974. Last previous edition approved in 2018 as A691/A691M – 18a. DOI: 10.1520/A0691_A0691M-19. 2 For ASME Boiler and Pressure Vessel Code applications, see related Specification SA-691 in Section II of that Code. *A Summary of Changes section appears at the end of this standard Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee. 1 1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

ASTM A691/A691M-19 Referenced Document

• ASTM A20/A20M Standard Specification for General Requirements for Steel Plates for Pressure Vessels
• ASTM A204/A204M Standard Specification for Pressure Vessel Plates, Alloy Steel, Molybdenum
• ASTM A299/A299M Standard Specification for Pressure Vessel Plates, Carbon Steel, Manganese-Silicon
• ASTM A370 Standard Test Methods and Definitions for Mechanical Testing of Steel Products
• ASTM A387/A387M Standard Specification for Pressure Vessel Plates, Alloy Steel, Chromium-Molybdenum
• ASTM A435/A435M Standard Specification for Straight-Beam Ultrasonic Examination of Steel Plates
• ASTM A530/A530M Standard Specification for General Requirements for Specialized Carbon and Alloy Steel Pipe
• ASTM A537/A537M Standard Specification for Pressure Vessel Plates, Heat-Treated, Carbon-Manganese-Silicon Steel
• ASTM E165/E165M Standard Practice for Liquid Penetrant Testing for General Industry
• ASTM E709 Standard Guide for Magnetic Particle Examination

ASTM A691/A691M-19 history

• 2019 ASTM A691/A691M-19 Standard Specification for Carbon and Alloy Steel Pipe, Electric-Fusion-Welded for High-Pressure Service at High Temperatures
• 2018 ASTM A691/A691M-18a Standard Specification for Carbon and Alloy Steel Pipe, Electric-Fusion-Welded for High-Pressure Service at High Temperatures
• 2018 ASTM A691/A691M-18 Standard Specification for Carbon and Alloy Steel Pipe, Electric-Fusion-Welded for High-Pressure Service at High Temperatures
• 2009 ASTM A691/A691M-09(2014) Standard Specification for Carbon and Alloy Steel Pipe, Electric-Fusion-Welded for High-Pressure Service at High Temperatures
• 2009 ASTM A691/A691M-09e1 Standard Specification for Carbon and Alloy Steel Pipe, Electric-Fusion-Welded for High-Pressure Service at High Temperatures
• 2009 ASTM A691/A691M-09 Standard Specification for Carbon and Alloy Steel Pipe, Electric-Fusion-Welded for High-Pressure Service at High Temperatures
• 1998 ASTM A691-98(2007) Standard Specification for Carbon and Alloy Steel Pipe, Electric-Fusion-Welded for High-Pressure Service at High Temperatures
• 1998 ASTM A691-98(2002) Standard Specification for Carbon and Alloy Steel Pipe, Electric-Fusion-Welded for High-Pressure Service at High Temperatures
• 1998 ASTM A691-98 Standard Specification for Carbon and Alloy Steel Pipe, Electric-Fusion-Welded for High-Pressure Service at High Temperatures