ASTM B463-21
(Specification)Standard Specification for UNS N08020 Alloy Plate, Sheet, and Strip
Standard Specification for UNS N08020 Alloy Plate, Sheet, and Strip
ABSTRACT
This specification covers the standard requirements for UNS N08020, UNS N08026, and UNS N08024 alloy plate (hot- or cold-rolled), sheet, and strip. The alloys shall be furnished and heat treated at certain annealing condition and temperature range: stabilized annealing for UNS N08020 alloy; solution annealing for UNS N08026 alloy; and annealing for UNS N08024 alloy. The materials shall conform to the specified chemical composition requirements for carbon, manganese, phosphorus, sulfur, silicon, nickel, chromium, molybdenum, copper, columbium, tantalum, nitrogen, and iron. Tensile strength, yield strength, elongation, and Brinell or Rockwell hardness of the alloys shall also meet the specified mechanical property requirements.
SCOPE
1.1 This specification2 covers UNS N08020 alloy plate, sheet, and strip.
1.2 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.
1.3 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.
1.4 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-Oct-2021
- Technical Committee
- B02 - Nonferrous Metals and Alloys
- Drafting Committee
- B02.07 - Refined Nickel and Cobalt and Their Alloys
Relations
- Effective Date
- 01-Nov-2017
- Effective Date
- 01-May-2013
- Effective Date
- 01-May-2012
- Effective Date
- 01-Apr-2010
- Effective Date
- 01-Mar-2008
- Effective Date
- 01-Dec-2006
- Effective Date
- 10-Nov-2002
- Effective Date
- 10-Nov-2002
- Effective Date
- 10-Nov-2002
- Effective Date
- 10-Nov-2002
- Effective Date
- 10-Oct-2002
- Effective Date
- 10-Jun-2002
- Effective Date
- 10-Jun-2000
Overview
ASTM B463-21 is the standard specification for UNS N08020 alloy plate, sheet, and strip, published by ASTM International. This document outlines the requirements for the chemical composition, mechanical properties, dimensions, and tolerances for plate, sheet, and strip products produced from the UNS N08020 (also covering UNS N08026 and UNS N08024) nickel-iron-chromium alloy family. Products furnished under this standard are intended for use where superior corrosion resistance and strength are required in harsh environments, especially those involving chemical processing.
Key Topics
- Material Scope: Covers plate, sheet, and strip products made from UNS N08020, N08026, and N08024 alloys.
- Heat Treatment: Specifies annealing conditions, such as stabilized annealing for UNS N08020 to optimize corrosion resistance and mechanical properties.
- Chemical Composition: Requires compliance with specified limits for elements including carbon, manganese, phosphorus, sulfur, silicon, nickel, chromium, molybdenum, copper, columbium (niobium), tantalum, and iron.
- Mechanical Properties: Sets minimum requirements for tensile strength, yield strength, elongation, and hardness (Brinell or Rockwell B).
- Dimensions and Tolerances: Products must adhere to specified thickness and width tolerances, drawing on ASTM B906 for general requirements.
- Supplementary Testing: Optional intergranular corrosion testing in accordance with ASTM A262 can be specified for enhanced quality assurance.
- Safety Considerations: Emphasizes user responsibility for understanding and managing all relevant health, safety, and environmental precautions, in accordance with Safety Data Sheets (SDS) and local regulations.
Applications
ASTM B463-21 provides critical requirements for industries that demand durable and corrosion-resistant materials, especially in applications such as:
- Chemical Processing Equipment: Heat exchangers, tanks, piping, and vessels where resistance to aggressive chemicals is needed.
- Pharmaceutical Manufacturing: Equipment and surfaces in direct contact with reactive substances.
- Petrochemical Industry: Piping and storage for high-sulfur or acidic environments.
- Food Processing: Surfaces exposed to corrosive foodstuffs and cleaning agents.
- Marine Environments: Structures exposed to saltwater or brine.
- Pollution Control Systems: Components requiring long service life in corrosive atmospheres.
UNS N08020, in particular, is valued for resistance to pitting, stress-corrosion cracking, and intergranular attack, making it suitable for environments unsuitable for standard stainless steels.
Related Standards
For effective implementation and compliance, ASTM B463-21 references and aligns with several related standards:
- ASTM A262: Practices for detecting susceptibility to intergranular attack in austenitic stainless steels - relevant for corrosion testing.
- ASTM B906: Specification for general requirements for flat-rolled nickel and nickel alloys plate, sheet, and strip - provides dimensional and other baseline requirements.
- ASME SB-463: The ASME specification harmonizes with ASTM B463 for use in boiler and pressure vessel construction.
Adhering to ASTM B463-21 ensures that UNS N08020 alloy plate, sheet, and strip products meet recognized international quality and performance benchmarks, providing confidence in their suitability for critical applications demanding excellent corrosion resistance and mechanical reliability.
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Frequently Asked Questions
ASTM B463-21 is a technical specification published by ASTM International. Its full title is "Standard Specification for UNS N08020 Alloy Plate, Sheet, and Strip". This standard covers: ABSTRACT This specification covers the standard requirements for UNS N08020, UNS N08026, and UNS N08024 alloy plate (hot- or cold-rolled), sheet, and strip. The alloys shall be furnished and heat treated at certain annealing condition and temperature range: stabilized annealing for UNS N08020 alloy; solution annealing for UNS N08026 alloy; and annealing for UNS N08024 alloy. The materials shall conform to the specified chemical composition requirements for carbon, manganese, phosphorus, sulfur, silicon, nickel, chromium, molybdenum, copper, columbium, tantalum, nitrogen, and iron. Tensile strength, yield strength, elongation, and Brinell or Rockwell hardness of the alloys shall also meet the specified mechanical property requirements. SCOPE 1.1 This specification2 covers UNS N08020 alloy plate, sheet, and strip. 1.2 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. 1.3 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. 1.4 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 the standard requirements for UNS N08020, UNS N08026, and UNS N08024 alloy plate (hot- or cold-rolled), sheet, and strip. The alloys shall be furnished and heat treated at certain annealing condition and temperature range: stabilized annealing for UNS N08020 alloy; solution annealing for UNS N08026 alloy; and annealing for UNS N08024 alloy. The materials shall conform to the specified chemical composition requirements for carbon, manganese, phosphorus, sulfur, silicon, nickel, chromium, molybdenum, copper, columbium, tantalum, nitrogen, and iron. Tensile strength, yield strength, elongation, and Brinell or Rockwell hardness of the alloys shall also meet the specified mechanical property requirements. SCOPE 1.1 This specification2 covers UNS N08020 alloy plate, sheet, and strip. 1.2 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. 1.3 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. 1.4 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 B463-21 is classified under the following ICS (International Classification for Standards) categories: 77.140.50 - Flat steel products and semi-products. The ICS classification helps identify the subject area and facilitates finding related standards.
ASTM B463-21 has the following relationships with other standards: It is inter standard links to ASTM B906-02(2017), ASTM A262-13, ASTM B906-02(2012), ASTM A262-10, ASTM A262-02a(2008), ASTM B906-02(2006), ASTM A262-02ae3, ASTM A262-02a, ASTM A262-02ae2, ASTM A262-02ae1, ASTM B906-02, ASTM A262-02, ASTM B906-00. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
ASTM B463-21 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:B463 −21
Standard Specification for
UNS N08020 Alloy Plate, Sheet, and Strip
This standard is issued under the fixed designation B463; 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.
This standard has been approved for use by agencies of the U.S. Department of Defense.
1. Scope* 3.1.1 The terms plate, sheet, and strip as used in this
specification are defined as follows:
1.1 This specification covers UNS N08020 alloy plate,
3 3
3.1.2 cold rolled plate, n—material ⁄16to ⁄8in.(4.76to9.52
sheet, and strip.
mm), inclusive in thickness and over 10 in. (254.0 mm) in
1.2 The values stated in inch-pound units are to be regarded
width.
as standard. The values given in parentheses are mathematical
3.1.3 hot rolled plate, n—material ⁄16 in. (4.76 mm) and
conversions to SI units that are provided for information only
over in thickness and over 10 in. (254.0 mm) in width.
and are not considered standard.
3.1.4 plate, n—material ⁄16 in. (4.75 mm) and over in
1.3 This standard does not purport to address all of the
thickness and over 10 in. (254.0 mm) in width.
safety concerns, if any, associated with its use. It is the
3.1.5 sheet, n—materialunder ⁄16in.(4.75mm)inthickness
responsibility of the user of this standard to become familiar
and 24 in. (609.6 mm) and over in width. Material under ⁄16 in.
with all hazards including those identified in the appropriate
(4.75 mm) in thickness and in all widths with No. 4 finish.
Safety Data Sheet (SDS) for this product/material as provided
by the manufacturer, to establish appropriate safety, health,
3.1.6 strip, n—material under ⁄16 in. (4.75 mm) in thickness
and environmental practices, and determine the applicability
and under 24 in. (609.6 mm) in width.
of regulatory limitations prior to use.
4. General Requirements
1.4 This international standard was developed in accor-
dance with internationally recognized principles on standard-
4.1 Material furnished under this specification shall con-
ization established in the Decision on Principles for the
form to the requirements of Specification B906 unless other-
Development of International Standards, Guides and Recom-
wise provided herein. In the case of conflict, the requirements
mendations issued by the World Trade Organization Technical
of this specification shall take precedence.
Barriers to Trade (TBT) Committee.
5. Materials and Manufacture
2. Referenced Documents
5.1 Heat Treatment—UNS N08020Alloy shall be furnished
2.1 ASTM Standards:
in the stabilize-annealed condition.
A262 Practices for Detecting Susceptibility to Intergranular
NOTE1—Therecommendedannealingtemperaturesare1800to1850°F
Attack in Austenitic Stainless Steels
(982 to 1010°C) for UNS N08020.
B906 Specification for General Requirements for Flat-
Rolled Nickel and Nickel Alloys Plate, Sheet, and Strip
6. Chemical Composition
6.1 The material shall conform to the composition limits
3. Terminology
specified in Table 1.
3.1 Definitions of Terms Specific to This Standard:
7. Mechanical Properties
This specification is under the jurisdiction of ASTM Committee B02 on
7.1 Mechanical Properties—The material shall conform to
Nonferrous Metals and Alloys and is the direct responsibility of Subcommittee
the mechanical property requirements specified in Table 2.
B02.07 on Refined Nickel and Cobalt and Their Alloys.
Current edition approved Nov. 1, 2021. Published December 2021. Originally
approved in 1967. Last previous edition approved in 2016 as B463 – 10 (2016).
8. Dimensions and Permissible Variations
DOI: 10.1520/B0463-21.
2 8.1 The tolerances and permissible variations provided in
For ASME Boiler and Pressure Vessel Code applications, see related Specifi-
cation SB – 463 in Section II of that Code.
Annex A1 of Sp
...
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: B463 − 10 (Reapproved 2016) B463 − 21
Standard Specification for
UNS N08020 Alloy Plate, Sheet, and Strip
This standard is issued under the fixed designation B463; 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.
This standard has been approved for use by agencies of the U.S. Department of Defense.
1. Scope Scope*
1.1 This specification covers UNS N08020 alloy plate, sheet, and strip.
1.2 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.
1.3 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 safety, health, and healthenvi-
ronmental practices, and determine the applicability of regulatory limitations prior to use.
1.4 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:
A262 Practices for Detecting Susceptibility to Intergranular Attack in Austenitic Stainless Steels
B906 Specification for General Requirements for Flat-Rolled Nickel and Nickel Alloys Plate, Sheet, and Strip
3. Terminology
3.1 Definitions of Terms Specific to This Standard:
3.1.1 The terms plate, sheet, and strip as used in this specification are defined as follows:
3 3
3.1.2 cold rolled plate, n—material ⁄16 to ⁄8 in. (4.76 to 9.52 mm), inclusive in thickness and over 10 in. (254.0 mm) in width.
3.1.3 hot rolled plate, n—material ⁄16 in. (4.76 mm) and over in thickness and over 10 in. (254.0 mm) in width.
3.1.4 plate, n—material ⁄16 in. (4.75 mm) and over in thickness and over 10 in. (254.0 mm) in width.
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 June 1, 2016Nov. 1, 2021. Published June 2016December 2021. Originally approved in 1967. Last previous edition approved in 20102016 as
B463B463 – 10 (2016). – 10. DOI: 10.1520/B0463-10R16.10.1520/B0463-21.
For ASME Boiler and Pressure Vessel Code applications, see related Specification SB – 463 in Section II of that Code.
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
B463 − 21
3 3
3.1.5 sheet, n—material under ⁄16 in. (4.75 mm) in thickness and 24 in. (609.6 mm) and over in width. Material under ⁄16 in. (4.75
mm) in thickness and in all widths with No. 4 finish.
3.1.6 strip, n—material under ⁄16 in. (4.75 mm) in thickness and under 24 in. (609.6 mm) in width.
4. General Requirements
4.1 Material furnished under this specification shall conform to the requirements of Specification B906 unless otherwise provided
herein. In the case of conflict, the requirements of this specification shall take precedence.
5. Materials and Manufacture
5.1
...
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