ASTM B688-22

Standard Specification for Chromium-Nickel-Molybdenum-Iron Plate, Sheet, and Strip

ABSTRACT
This specification covers UNS N08366 and N08367 chromium-nickel-molybdenum-iron alloy plates, sheets, and strips for use in corrosive service and heat-resisting applications. The material chemical composition and mechanical properties such as the yield strength, tensile strength, elongation, and hardness should conform to the specified requirements.
SCOPE
1.1 This specification covers chromium-nickel-molybdenum-iron UNS N083672 plate, sheet, and strip for use in corrosive service and heat-resisting applications.  
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: 30-Sep-2022
• ICS: 77.140.50 - Flat steel products and semi-products
• Technical Committee: B02 - Nonferrous Metals and Alloys
• Drafting Committee: B02.07 - Refined Nickel and Cobalt and Their Alloys

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:B688 −22
Standard Specification for
1
Chromium-Nickel-Molybdenum-Iron Plate, Sheet, and Strip
This standard is issued under the fixed designation B688; 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* E18 Test Methods for Rockwell Hardness of Metallic Ma-
terials
1.1 This specification covers chromium-nickel-
2 E29 Practice for Using Significant Digits in Test Data to
molybdenum-iron UNS N08367 plate, sheet, and strip for use
Determine Conformance with Specifications
in corrosive service and heat-resisting applications.
E140 Hardness Conversion Tables for Metals Relationship
1.2 The values stated in inch-pound units are to be regarded
Among Brinell Hardness, Vickers Hardness, Rockwell
as standard. The values given in parentheses are mathematical
Hardness, Superficial Hardness, Knoop Hardness, Sclero-
conversions to SI units that are provided for information only
scope Hardness, and Leeb Hardness
and are not considered standard.
E527 Practice for Numbering Metals and Alloys in the
1.3 This standard does not purport to address all of the Unified Numbering System (UNS)
safety concerns, if any, associated with its use. It is the
E1473 Test Methods for Chemical Analysis of Nickel, Co-
responsibility of the user of this standard to become familiar balt and High-Temperature Alloys
with all hazards including those identified in the appropriate
3. Terminology
Safety Data Sheet (SDS) for this product/material as provided
3.1 Definitions of Terms Specific to This Standard:
by the manufacturer, to establish appropriate safety, health,
3
3.1.1 sheet, n—material under ⁄16 in. (5 mm) in thickness
and environmental practices, and determine the applicability
and 24 in. (610 mm) and over in width.
of regulatory limitations prior to use.
3
1.4 This international standard was developed in accor-
3.1.2 strip, n—material under ⁄16 in. (5 mm) in thickness
dance with internationally recognized principles on standard-
and under 24 in. (610 mm) in width.
ization established in the Decision on Principles for the
3
3.1.3 plate, n—material ⁄16 in. (5 mm) and over in thickness
Development of International Standards, Guides and Recom-
and over 10 in. (254 mm) in width.
mendations issued by the World Trade Organization Technical
Barriers to Trade (TBT) Committee. 4. Ordering Information
4.1 Orders for material under this specification shall include
2. Referenced Documents
the following information, as required:
3
4.1.1 Quantity (feet, meters, or number of pieces),
2.1 ASTM Standards:
4.1.2 Alloy name or UNS number,
B880 Specification for General Requirements for Chemical
4.1.3 Finish (hot-rolled or cold-rolled),
Check Analysis Limits for Nickel, Nickel Alloys and
4.1.4 Dimensions (thickness, width, and length if cut-
Cobalt Alloys
length),
E8/E8M Test Methods for Tension Testing of Metallic Ma-
4.1.5 Purchaser’s inspection, if required,
terials
4.1.6 ASTM designation and year of issue, and
E10 Test Method for Brinell Hardness of Metallic Materials
4.1.7 Samples for product analysis, if required.
5. Chemical Composition
1
This specification is under the jurisdiction of ASTM Committee B02 on
5.1 The material shall conform to the composition limits
Nonferrous Metals and Alloys and is the direct responsibility of Subcommittee
specified in Table 1.
B02.07 on Refined Nickel and Cobalt and Their Alloys.
Current edition approved Oct. 1, 2022. Published November 2022. Originally
5.2 If a product (check) analysis is made by the purchaser,
approved in 1981. Last previous edition approved in 2018 as B688 – 18. DOI:
the material shall conform to the permissible variations for
10.1520/B0688-22.
2
Designation established in accordance with Practice E527 and SAE J1086,
product (check) analysis in Specification B880.
Practice for Numbering Metals and Alloys (UNS).
3
For referenced ASTM standards, visit the ASTM website, www.astm.org, or 6. Mechanical Properties and Other Requirements
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
6.1 The material shall conform to the mechanical property
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. requirements specified in Table 2.
*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
1

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B688−2
...

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: B688 − 18 B688 − 22
Standard Specification for
Chromium-Nickel-Molybdenum-Iron (UNS N08367) Plate,
1
Sheet, and Strip
This standard is issued under the fixed designation B688; 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
1.1 This specification covers chromium-nickel-molybdenum-iron UNS N08367 plate, sheet, and strip for use in corrosive service
and heat-resisting applications.
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.
2. Referenced Documents
3
2.1 ASTM Standards:
B880 Specification for General Requirements for Chemical Check Analysis Limits for Nickel, Nickel Alloys and Cobalt Alloys
E8/E8M Test Methods for Tension Testing of Metallic Materials
E10 Test Method for Brinell Hardness of Metallic Materials
E18 Test Methods for Rockwell Hardness of Metallic Materials
E29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
E140 Hardness Conversion Tables for Metals Relationship Among Brinell Hardness, Vickers Hardness, Rockwell Hardness,
Superficial Hardness, Knoop Hardness, Scleroscope Hardness, and Leeb Hardness
E527 Practice for Numbering Metals and Alloys in the Unified Numbering System (UNS)
E1473 Test Methods for Chemical Analysis of Nickel, Cobalt and High-Temperature Alloys
3. Terminology
3.1 Definitions of Terms Specific to This Standard:
1
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, 2018Oct. 1, 2022. Published January 2019November 2022. Originally approved in 1981. Last previous edition approved in 20142018
as B688 – 96 (2014).B688 – 18. DOI: 10.1520/B0688-18.10.1520/B0688-22.
2
Designation established in accordance with ASTMPractice E527 and SAE J1086, Practice for Numbering Metals and Alloys (UNS).
3
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at [e-mail]. 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
1

---------------------- Page: 1 ----------------------
B688 − 22
3
3.1.1 sheet, n—material under ⁄16 in. (5 mm) in thickness and 24 in. (610 mm) and over in width.
3
3.1.2 strip, n—material under ⁄16 in. (5 mm) in thickness and under 24 in. (610 mm) in width.
3
3.1.3 plate, n—material ⁄16 in. (5 mm) and over in thickness and over 10 in. (254 mm) in width.
4. Ordering Information
4.1 Orders for material under this specification shall include the following information, as required:
4.1.1 Quantity (feet, meters, or number of pieces),
4.1.2 Alloy name or UNS number,
4.1.3 Finish (hot-rolled or cold-rolled),
4.1.4 Dimensions (thickness, width, and length if cut-length),
4.1.5 Purchaser’s inspection, if required,
4.1.6 ASTM designation and year of issue, and
4.1.7 Samples for product analysis, if required.
5. Chemical Composition
5.1 The material shall conform to the composition limits specified in Table 1.
5.2 If a product (check) analysis is made by the purchaser, the material shall conform to the permissible v
...