ASTM B677-23
(Specification)Standard Specification for Nickel-Iron-Chromium-Molybdenum, Iron-Nickel-Chromium-Molybdenum-Copper, and Nickel-Iron-Chromium-Molybdenum-Nitrogen Seamless Pipe and Tube
Standard Specification for Nickel-Iron-Chromium-Molybdenum, Iron-Nickel-Chromium-Molybdenum-Copper, and Nickel-Iron-Chromium-Molybdenum-Nitrogen Seamless Pipe and Tube
ABSTRACT
This specification covers UNS N08925, N08354, and N08926 alloy seamless, cold-worked or hot-finished pipes and tubes for use in general corrosive service. The materials should be supplied in solution-treated condition, heat treated and quenched in water or rapidly cooled by other means. The material chemical composition, mechanical properties, and required response to hydrostatic and nondestructive tests should conform to the values contained in this specification and related ASTM standards.
SCOPE
1.1 This specification covers UNS N08925, UNS N08354, UNS N089262, and UNS N08935 seamless, cold-worked or hot-finished pipe and tube intended for general corrosive service.
1.2 ASTM International has adopted definitions whereby some grades, such as UNS N08904 previously in this specification, were recognized as stainless steels, because those grades have iron as the largest element by mass percent. Such grades are under the oversight of ASTM Committee A01 and its subcommittees. The products of N08904 previously covered in this specification are now covered by Specifications A269 and A312/A312M.
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 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 become familiar with all hazards including those identified in the appropriate Safety Data Sheet (SDS) for this product/material as provided by the manufacturer, 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.
General Information
- Status
- Published
- Publication Date
- 31-Mar-2023
- Technical Committee
- B02 - Nonferrous Metals and Alloys
- Drafting Committee
- B02.07 - Refined Nickel and Cobalt and Their Alloys
Relations
- Effective Date
- 01-Mar-2024
- Effective Date
- 01-Apr-2019
- Effective Date
- 01-Nov-2018
- Effective Date
- 01-Apr-2017
- Effective Date
- 01-Oct-2016
- Effective Date
- 01-Sep-2016
- Effective Date
- 01-Nov-2015
- Effective Date
- 01-Oct-2015
- Effective Date
- 01-Sep-2015
- Effective Date
- 01-Mar-2015
- Effective Date
- 01-Nov-2014
- Effective Date
- 01-Oct-2014
- Effective Date
- 01-Oct-2014
- Effective Date
- 01-Mar-2014
- Effective Date
- 01-Oct-2013
Overview
ASTM B677-23 is the standard specification for seamless pipes and tubes made from nickel-iron-chromium-molybdenum, iron-nickel-chromium-molybdenum-copper, and nickel-iron-chromium-molybdenum-nitrogen alloys. This specification focuses on UNS N08925, N08354, N08926, and N08935 alloys produced by either cold-working or hot-finishing. Pipes and tubes manufactured under ASTM B677-23 are intended for use in general corrosive service, demanding durability and excellent resistance to a range of corrosive environments.
The standard addresses chemical composition, mechanical properties, heat treatment, testing, and certification requirements necessary for ensuring consistent material quality across manufacturers and applications.
Key Topics
Material Grades and Chemistry
- Covers the latest UNS alloy designations including N08925, N08354, N08926, and N08935.
- Specifies strict chemical composition that includes controlled levels of nickel, iron, chromium, molybdenum, and, where applicable, copper and nitrogen to ensure corrosion resistance and mechanical strength.
Manufacturing and Heat Treatment
- Requires materials to be delivered in solution-treated condition, typically involving heating to specific temperatures and rapid cooling (quenching) to optimize corrosion resistance.
- Includes both cold-worked and hot-finished production methods for minimum grain size and mechanical consistency.
Mechanical and Testing Requirements
- Requires minimum tensile strength, yield strength, and elongation for each alloy, guaranteeing performance in demanding service.
- Mandates hydrostatic or nondestructive electric testing to verify structural integrity.
Certification and Inspection
- Includes detailed purchaser responsibilities for specifying alloy, finish, dimensions, test methods, certification needs, and inspection protocols.
Dimensional Standards and Permissible Variations
- Pipe and tube must conform to precise outside diameter and wall thickness tolerances to meet robust industry applications.
Applications
ASTM B677-23 seamless pipe and tube are widely used in industries requiring robust corrosion resistance and mechanical reliability, such as:
- Chemical Processing: Suitable for environments with aggressive chemicals and high temperatures.
- Petroleum Refining: Ideal for piping systems handling corrosive media, acids, or high pressures.
- Power Generation: Used in power plant components exposed to extreme operational conditions.
- Pharmaceutical and Food Processing: Ensures sanitary, high-integrity tubing where contamination resistance is critical.
- Marine and Offshore: Performs well in saltwater and marine atmospheres due to high resistance to localized corrosion.
Their precise dimensional tolerances and manufacturing consistency make ASTM B677-23 products essential in critical engineering systems where failure is not an option.
Related Standards
For a comprehensive approach to material selection and system design, consider the following related ASTM specifications:
- ASTM A269: Specification for seamless and welded austenitic stainless steel tubing for general service.
- ASTM A312/A312M: Specification for seamless, welded, and heavily cold-worked austenitic stainless steel pipes.
- ASTM B829: General requirements for nickel and nickel alloys seamless pipe and tube, which addresses testing, inspection, and certification basics.
- ASTM B899: Terminology relating to non-ferrous metals and alloys.
- ASTM E527: Practice for numbering metals and alloys in the Unified Numbering System (UNS).
Integrating ASTM B677-23 with these standards ensures full compliance for projects where seamless nickel alloy pipes and tubes are essential for safety, reliability, and efficiency.
Keywords: ASTM B677-23, nickel alloy seamless pipe, seamless nickel tube, corrosion resistant tubing, UNS N08925, N08926, N08354, N08935, seamless alloy pipe, industrial piping standards, ASTM nickel-iron-chromium-molybdenum
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ASTM B677-23 - Standard Specification for Nickel-Iron-Chromium-Molybdenum, Iron-Nickel-Chromium-Molybdenum-Copper, and Nickel-Iron-Chromium-Molybdenum-Nitrogen Seamless Pipe and Tube
REDLINE ASTM B677-23 - Standard Specification for Nickel-Iron-Chromium-Molybdenum, Iron-Nickel-Chromium-Molybdenum-Copper, and Nickel-Iron-Chromium-Molybdenum-Nitrogen Seamless Pipe and Tube
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Frequently Asked Questions
ASTM B677-23 is a technical specification published by ASTM International. Its full title is "Standard Specification for Nickel-Iron-Chromium-Molybdenum, Iron-Nickel-Chromium-Molybdenum-Copper, and Nickel-Iron-Chromium-Molybdenum-Nitrogen Seamless Pipe and Tube". This standard covers: ABSTRACT This specification covers UNS N08925, N08354, and N08926 alloy seamless, cold-worked or hot-finished pipes and tubes for use in general corrosive service. The materials should be supplied in solution-treated condition, heat treated and quenched in water or rapidly cooled by other means. The material chemical composition, mechanical properties, and required response to hydrostatic and nondestructive tests should conform to the values contained in this specification and related ASTM standards. SCOPE 1.1 This specification covers UNS N08925, UNS N08354, UNS N089262, and UNS N08935 seamless, cold-worked or hot-finished pipe and tube intended for general corrosive service. 1.2 ASTM International has adopted definitions whereby some grades, such as UNS N08904 previously in this specification, were recognized as stainless steels, because those grades have iron as the largest element by mass percent. Such grades are under the oversight of ASTM Committee A01 and its subcommittees. The products of N08904 previously covered in this specification are now covered by Specifications A269 and A312/A312M. 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 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 become familiar with all hazards including those identified in the appropriate Safety Data Sheet (SDS) for this product/material as provided by the manufacturer, 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.
ABSTRACT This specification covers UNS N08925, N08354, and N08926 alloy seamless, cold-worked or hot-finished pipes and tubes for use in general corrosive service. The materials should be supplied in solution-treated condition, heat treated and quenched in water or rapidly cooled by other means. The material chemical composition, mechanical properties, and required response to hydrostatic and nondestructive tests should conform to the values contained in this specification and related ASTM standards. SCOPE 1.1 This specification covers UNS N08925, UNS N08354, UNS N089262, and UNS N08935 seamless, cold-worked or hot-finished pipe and tube intended for general corrosive service. 1.2 ASTM International has adopted definitions whereby some grades, such as UNS N08904 previously in this specification, were recognized as stainless steels, because those grades have iron as the largest element by mass percent. Such grades are under the oversight of ASTM Committee A01 and its subcommittees. The products of N08904 previously covered in this specification are now covered by Specifications A269 and A312/A312M. 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 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 become familiar with all hazards including those identified in the appropriate Safety Data Sheet (SDS) for this product/material as provided by the manufacturer, 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.
ASTM B677-23 is classified under the following ICS (International Classification for Standards) categories: 23.040.15 - Non-ferrous metal pipes. The ICS classification helps identify the subject area and facilitates finding related standards.
ASTM B677-23 has the following relationships with other standards: It is inter standard links to ASTM A312/A312M-24, ASTM B829-19, ASTM B829-18, ASTM B829-04a(2017), ASTM B899-16, ASTM A312/A312M-16a, ASTM A312/A312M-15b, ASTM B899-15, ASTM A312/A312M-15a, ASTM A312/A312M-15, ASTM A312/A312M-14b, ASTM A312/A312M-14a, ASTM B899-14, ASTM A312/A312M-14, ASTM A269-13. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
ASTM B677-23 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
Standards Content (Sample)
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.
Designation: B677 − 23
Standard Specification for
Nickel-Iron-Chromium-Molybdenum, Iron-Nickel-Chromium-
Molybdenum-Copper, and Nickel-Iron-Chromium-
Molybdenum-Nitrogen Seamless Pipe and Tube
This standard is issued under the fixed designation B677; 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. Referenced Documents
2.1 ASTM Standards:
1.1 This specification covers UNS N08925, UNS N08354,
A269 Specification for Seamless and Welded Austenitic
UNS N08926 , and UNS N08935 seamless, cold-worked or
Stainless Steel Tubing for General Service
hot-finished pipe and tube intended for general corrosive
A312/A312M Specification for Seamless, Welded, and
service.
Heavily Cold Worked Austenitic Stainless Steel Pipes
1.2 ASTM International has adopted definitions whereby
B829 Specification for General Requirements for Nickel and
some grades, such as UNS N08904 previously in this
Nickel Alloys Seamless Pipe and Tube
specification, were recognized as stainless steels, because those
B899 Terminology Relating to Non-ferrous Metals and Al-
grades have iron as the largest element by mass percent. Such
loys
grades are under the oversight of ASTM Committee A01 and
E527 Practice for Numbering Metals and Alloys in the
its subcommittees. The products of N08904 previously covered
Unified Numbering System (UNS)
in this specification are now covered by Specifications A269
and A312/A312M.
3. Terminology
1.3 The values stated in inch-pound units are to be regarded
3.1 Definitions:
as standard. The values given in parentheses are mathematical
3.1.1 For definitions of terms used in this specification, refer
conversions to SI units that are provided for information only
to Terminology B899.
and are not considered standard.
4. General Requirements
1.4 This standard does not purport to address all of the
4.1 Material furnished under this specification shall con-
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to become familiar form to the requirements of Specification B829 unless other-
wise provided herein. In the case of conflict, the requirements
with all hazards including those identified in the appropriate
Safety Data Sheet (SDS) for this product/material as provided of this specification shall take precedence.
by the manufacturer, to establish appropriate safety, health,
5. Ordering Information
and environmental practices, and determine the applicability
of regulatory limitations prior to use. 5.1 It is the responsibility of the purchaser to specify all
1.5 This international standard was developed in accor- requirements that are necessary for material ordered under this
specification. Examples of such requirements include, but are
dance with internationally recognized principles on standard-
ization established in the Decision on Principles for the not limited to, the following:
5.1.1 Alloy name or UNS number.
Development of International Standards, Guides and Recom-
mendations issued by the World Trade Organization Technical 5.1.2 ASTM designation and year of issue.
Barriers to Trade (TBT) Committee. 5.1.3 Finish.
5.1.4 Dimensions:
5.1.4.1 Tube—Outside diameter and the average or mini-
mum wall thickness.
This specification is under the jurisdiction of ASTM Committee B02 on
5.1.4.2 Pipe—Standard pipe size and schedule.
Nonferrous Metals and Alloys and is the direct responsibility of Subcommittee
B02.07 on Refined Nickel and Cobalt and Their Alloys.
Current edition approved April 1, 2023. Published April 2023. Originally
approved in 1980. Last previous edition approved in 2021 as B677 – 21. DOI: For referenced ASTM standards, visit the ASTM website, www.astm.org, or
10.1520/B0677-23. contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
New designation established in accordance with ASTM E527 and SAE J1086, Standards volume information, refer to the standard’s Document Summary page on
Recommended Practice for Numbering Metals and Alloys (UNS). the ASTM website.
*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
B677 − 23
A
TABLE 1 Chemical Requirements
Element UNS N08925 UNS N08926 UNS N08935 UNS N08354
Carbon 0.020 0.020 0.030 0.030
Manganese 1.0 2.00 1.2 1.00
Phosphorus 0.045 0.03 0.030 0.030
Sulfur 0.030 0.01 0.020 0.010
Silicon 0.50 0.5 0.5 1.00
Nickel 24.0 to 26.0 24.00 to 26.00 34.0 to 36.0 22.0 to 24.0
Chromium 19.0 to 21.0 19.00 to 21.00 26.0 to 28.0 34.0 to 36.0
Molybdenum 6.0 to 7.0 6.0 to 7.0 6.1 to 7.1 7.0 to 8.0
Copper 0.8 to 1.5 0.5 to 1.5 0.4 .
Nitrogen 0.1 to 0.2 0.15 to 0.25 0.25 to 0.36 0.17 to 0.24
Iron balance balan
...
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: B677 − 21 B677 − 23
Standard Specification for
Nickel-Iron-Chromium-Molybdenum and Iron-Nickel-
Chromium-Molybdenum-CopperNickel-Iron-Chromium-
Molybdenum, Iron-Nickel-Chromium-Molybdenum-Copper,
and Nickel-Iron-Chromium-Molybdenum-Nitrogen Seamless
Pipe and Tube
This standard is issued under the fixed designation B677; 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*
1.1 This specification covers UNS N08925, UNS N08354, and UNS N08926 , and UNS N08935 seamless, cold-worked or
hot-finished pipe and tube intended for general corrosive service.
1.2 ASTM International has adopted definitions whereby some grades, such as UNS N08904 previously in this specification, were
recognized as stainless steels, because those grades have iron as the largest element by mass percent. Such grades are under the
oversight of ASTM Committee A01 and its subcommittees. The products of N08904 previously covered in this specification are
now covered by Specifications A269 and A312/A312M.
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 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 become familiar with all hazards including those identified in the appropriate Safety Data Sheet
(SDS) for this product/material as provided by the manufacturer, 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
2.1 ASTM Standards:
A269 Specification for Seamless and Welded Austenitic Stainless Steel Tubing for General Service
A312/A312M Specification for Seamless, Welded, and Heavily Cold Worked Austenitic Stainless Steel Pipes
B829 Specification for General Requirements for Nickel and Nickel Alloys Seamless Pipe and Tube
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 April 1, 2021April 1, 2023. Published April 2021April 2023. Originally approved in 1980. Last previous edition approved in 20162021 as
B677 – 05 (2016).B677 – 21. DOI: 10.1520/B0677-21.10.1520/B0677-23.
New designation established in accordance with ASTM E527 and SAE J1086, Recommended Practice for Numbering Metals and Alloys (UNS).
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.
*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
B677 − 23
B899 Terminology Relating to Non-ferrous Metals and Alloys
E527 Practice for Numbering Metals and Alloys in the Unified Numbering System (UNS)
3. Terminology
3.1 average diameter, n—the average of the maximum and minimum outside diameters as determined at any one cross section of
the tube or pipe.
3.1 Definitions:
3.1.1 For definitions of terms used in this specification, refer to Terminology B899.
3.2 pipe, n—seamless tube conforming to the particular dimensions commercially known as standard pipe sizes.
3.3 tube, n—a hollow product of round or any other cross section having a continuous periphery.
4. General Requirements
4.1 Material furnished under this specification shall conform to the requirements of Specification B829 unless otherwise provided
herein. In the case of conflict, the requirements of this specification shall take precedence.
5. Ordering Information
5.1 It is the responsibility of the purchaser to specify all requirements that are necessary for material ordered under this
specification. Examples of such requirements include, but are not limited to, the following:
5.1.1 Alloy name or UNS number.
5.1.2 ASTM designation and year of issue.
5.1.3 Finish.
5.1.4 Dimensions:
TABLE 1 Chemical Requirements
Element UNS N08925 UNS N08926 UNS N08354
Carbon, max 0.020 0.020 0.030
Manganese, max 1.0 2.00 1.00
Phosphorus, max 0.045 0.03 0.030
Sulfur, max 0.030 0.01 0.010
Silicon, max 0.50 0.5 1.00
Nickel 24.0 to 26.0 24.00 to 26.00 22.0 to 24.0
Chromium 19.0 to 21.0 19.00 to 21.00 34.0 to 36.0
Molybdenum 6.0 to 7.0 6.0 to 7.0 7.0 to 8.0
Copper 0.8 to 1.5 0.5 to 1.5 .
Nitrogen 0.1 to 0.2 0.15 to 0.25 0.17 to 0.24
Iron balance balance balance
A
TABLE 1 Chemical Requirements
Element UNS N08925 UNS N08926 UNS N08935 UNS N08354
Carbon 0.020 0.020 0.030 0.030
Manganese 1.0 2.00 1.2 1.00
Phosphorus 0.045 0.03 0.030 0.030
Sulfur 0.030 0.01 0.020 0.010
Silicon 0.50 0.5
...
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