ASTM B705-24

This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: B705 − 17 B705 − 24
Standard Specification for
Nickel-Alloy (UNS N06625, N06219 and N08825)Nickel-
Chromium-Molybdenum-Niobium Alloy, Nickel-Chromium-
Molybdenum-Silicon Alloy, and Nickel-Iron-Chromium-
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Molybdenum-Copper Alloy Welded Pipe
This standard is issued under the fixed designation B705; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope*
2 2 2
1.1 This specification covers welded UNS N06625, UNS N06219 and UNS N08825 pipe in the annealed condition (temper)
for general corrosion applications.
1.2 This specification covers pipe sizes in schedules shown in the Permissible Variations in Outside Diameter and Wall Thickness
for Welded Pipe table of Specification B775.
1.3 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical
conversions to SI units that are provided for information only and are not considered standard.
1.4 The following precautionary caveat pertains only to the test methods portion, Section 8, of this specification: This standard
does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this
standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory
limitations prior to use.
1.5 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.
2. Referenced Documents
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2.1 ASTM Standards:
B775 Specification for General Requirements for Nickel and Nickel Alloy Welded Pipe
B880 Specification for General Requirements for Chemical Check Analysis Limits for Nickel, Nickel Alloys and Cobalt Alloys
B899 Terminology Relating to Non-ferrous Metals and Alloys
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2.2 ASME Boiler and Pressure Vessel Code:
Section IX Welding and Brazing Qualifications
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This specification is under the jurisdiction of ASTM Committee B02 on Nonferrous Metals and Alloys and is the direct responsibility of Subcommittee B02.07 on Refined
Nickel and Cobalt and Their Alloys.
Current edition approved Nov. 1, 2017April 1, 2024. Published November 2017April 2024. Originally approved in 1982. Last previous edition approved in 20142017 as
B705B705 – 17. – 05 (2014). DOI: 10.1520/B0705-17. DOI: 10.1520/B0705-24.
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New designation established in accordance with Practice E527 and SAE J 1086, Practice for Numbering Metals and Alloys (UNS).
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For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
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Available from American Society of Mechanical Engineers (ASME), ASME International Headquarters, Three Park Ave., New York, NY 10016-5990, http://
www.asme.org.
*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
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B705 − 24
3. Terminology
3.1 Definitions:
3.1.1 For definitions of terms used in this standard, refer to Terminology B899.
3.2 Definitions of Terms Specific to This Standard:
3.2.1 Class 1—Welded, cold-worked, annealed, and nondestructively tested in accordance with 9.1.
3.2.2 Class 2—Welded, cold-worked, annealed, and nondestructively tested in accordance with 9.2.
3.2.3 Grade 1—Annealed condition, relevant for UNS N06625.
3.2.4 Grade 2—Solution annealed condition, relevant for UNS N06625.
4. General Requirement
4.1 Material furnished in accordance with this specification shall conform to the applicable requirements of the current edition of
Specification B775 unless otherwise provided herein.
4. Definition of Terms
4.1 Class 1—Welded, cold-worked, annealed, and nondestructively tested in accordance with 9.1.
4.2 Class 2—Welded, cold-worked, annealed, and nondestructively tested in accordance with 9.2.
4.3 Grade 1—Annealed condition, relevant for UNS N06625.
4.4 Grade 2—Solution annealed condition, relevant for UNS N06625.
5. O
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