ASTM B408-22

Standard Specification for Nickel-Iron-Chromium Alloy Rod and Bar

ABSTRACT
This specification covers nickel-iron-chromium alloys UNS N08120, UNS N08800, UNS N08810, UNS N08811, and UNS N08890 in the form of hot-worked and cold-worked rod and bar. The material shall be subjected to heat treatment, and its composition shall conform to the chemical requirements for nickel, chromium, iron, manganese, carbon, copper, silicon, sulfur, aluminum, titanium, columbium, molybdenum, niobium, tantalum, phosphorus, tungsten, cobalt, nitrogen, and boron. The material shall conform to mechanical property requirements for tensile strength, yield strength, and elongation. Test methods (chemical analysis, tension test, grain size test) shall be performed in accordance to referenced ASTM documents itemized herein.
SCOPE
1.1 This specification2 covers UNS N08120, UNS N08800, UNS N08810, UNS N08811,3 and UNS N08890 in the form of hot-worked and cold-worked rod and bar. Alloy UNS N08800 is normally employed in service temperatures up to and including 1100 °F (593 °C). Alloys UNS N08120, UNS N08810, UNS N08811, and UNS N08890 are normally employed in service temperatures above 1100 °F (593 °C) where resistance to creep and rupture is required, and they are annealed to develop controlled grain size for optimum properties in this temperature range.  
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-Apr-2022
• ICS: 77.150.40 - Nickel and chromium 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:B408 −22
Standard Specification for
1
Nickel-Iron-Chromium Alloy Rod and Bar
This standard is issued under the fixed designation B408; 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
4
2
2.1 ASTM Standards:
1.1 This specification covers UNS N08120, UNS N08800,
3
B880 Specification for General Requirements for Chemical
UNS N08810, UNS N08811, and UNS N08890 in the form of
Check Analysis Limits for Nickel, Nickel Alloys and
hot-worked and cold-worked rod and bar. Alloy UNS N08800
Cobalt Alloys
is normally employed in service temperatures up to and
B899 Terminology Relating to Non-ferrous Metals and Al-
including 1100 °F (593 °C). Alloys UNS N08120, UNS
loys
N08810, UNS N08811, and UNS N08890 are normally em-
E8/E8M Test Methods for Tension Testing of Metallic Ma-
ployed in service temperatures above 1100 °F (593 °C) where
terials
resistance to creep and rupture is required, and they are
E29 Practice for Using Significant Digits in Test Data to
annealed to develop controlled grain size for optimum proper-
Determine Conformance with Specifications
ties in this temperature range.
E112 Test Methods for Determining Average Grain Size
1.2 The values stated in inch-pound units are to be regarded E1473 Test Methods for Chemical Analysis of Nickel, Co-
balt and High-Temperature Alloys
as standard. The values given in parentheses are mathematical
conversions to SI units that are provided for information only
3. Terminology
and are not considered standard.
3.1 Definitions of Terms:
1.3 This standard does not purport to address all of the
3.1.1 The terms and definitions of Terminology B899 are
safety concerns, if any, associated with its use. It is the
applicable to this specification.
responsibility of the user of this standard to become familiar
with all hazards including those identified in the appropriate
3.2 Definitions of Terms Specific to This Standard:
Safety Data Sheet (SDS) for this product/material as provided 3.2.1 bar, n—material of rectangular (flats), hexagonal, or
by the manufacturer, to establish appropriate safety, health, square solid section up to and including 10 in. (254 mm) in
1
and environmental practices, and determine the applicability width and ⁄8 in. (3.2 mm) and over in thickness in straight
lengths.
of regulatory limitations prior to use.
3.2.1.1 Discussion—Hot-worked rectangular bar in widths
1.4 This international standard was developed in accor-
10in.(254mm)andundermaybefurnishedashot-rolledplate
dance with internationally recognized principles on standard-
with sheared or cut edges in accordance with Specification
ization established in the Decision on Principles for the
B408, provided the mechanical property requirements of
Development of International Standards, Guides and Recom-
Specification B408 are met.
mendations issued by the World Trade Organization Technical
Barriers to Trade (TBT) Committee.
4. Ordering Information
4.1 Orders for material to this specification should include
information with respect to the following:
1
This specification is under the jurisdiction of ASTM Committee B02 on
4.1.1 ASTM designation, and year of issue.
Nonferrous Metals and Alloys and is the direct responsibility of Subcommittee
4.1.2 Alloy designation or UNS number.
B02.07 on Refined Nickel and Cobalt and Their Alloys.
Current edition approved May 1, 2022. Published May 2022. Originally
approved in 1957. Last previous edition approved in 2016 as B408 – 06 (2016).
DOI: 10.1520/B0408-22.
2 4
For ASME Boiler and Pressure Vessel Code applications see related Specifi- For referenced ASTM standards, visit the ASTM website, www.astm.org, or
cation SB-408 in Section II of that Code. contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
3
New designations established in accordance with Practice E527 and Standards volume information, refer to the standard’s Document Summary page on
SAE J1086, 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
1

---------------------- Page: 1 ----------------------
B408−22
TABLE 2 Permissible Variations in Diameter or Distance
4.1.3 Section—Rod (round) or bar (square, hexagonal, or
rectangular). Permissible Variations from Specified
Specified Dimension,
Dimensions, in.
...

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: B408 − 06 (Reapproved 2016) B408 − 22
Standard Specification for
1
Nickel-Iron-Chromium Alloy Rod and Bar
This standard is issued under the fixed designation B408; 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 Scope*
2 3
1.1 This specification covers UNS N08120, UNS N08800, UNS N08810, UNS N08811, and UNS N08890 in the form of
hot-worked and cold-worked rod and bar. Alloy UNS N08800 is normally employed in service temperatures up to and including
1100°F (593°C).1100 °F (593 °C). Alloys UNS N08120, UNS N08810, UNS N08811, and UNS N08890 are normally employed
in service temperatures above 1100°F (593°C)1100 °F (593 °C) where resistance to creep and rupture is required, and they are
annealed to develop controlled grain size for optimum properties in this temperature range.
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
4
2.1 ASTM Standards:
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
E8E8/E8M Test Methods for Tension Testing of Metallic Materials [Metric] E0008_E0008M
E29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
E112 Test Methods for Determining Average Grain Size
E1473 Test Methods for Chemical Analysis of Nickel, Cobalt and High-Temperature Alloys
3. Terminology
3.1 Definitions of Terms:
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 June 1, 2016May 1, 2022. Published June 2016May 2022. Originally approved in 1957. Last previous edition approved in 20112016 as B408 – 06
(2011).(2016). DOI: 10.1520/B0408-06R16.10.1520/B0408-22.
2
For ASME Boiler and Pressure Vessel Code applications see related Specification SB-408 in Section II of that Code.
3
New designations established in accordance with Practice E527 and SAE J1086, Practice for Numbering Metals and Alloys (UNS).
4
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 ----------------------
B408 − 22
3.1.1 The terms and definitions of Terminology B899 are applicable to this specification.
3.2 Definitions of Terms Specific to This Standard:
3.2.1 bar, n—material of rectangular (flats), hexagonal, or square solid section up to and including 10 in. (254 mm) in width and
1
⁄8 in. (3.2 mm) and over in thickness in straight lengths.
3.2.1.1 Discussion—
Hot-worked rectangular bar in widths 10 in. (254 mm) and under may be furnished as hot-rolled plate with sheared or cut edges
in accordance with Specification B408, provided the mechanical property requirements of Specification B408 are met.
3.1.2 rod, n—material of round solid section furnished in straight lengths.
4. Ordering Information
4.1 Orders for material to this s
...