ASTM B621-02(2016)

Standard Specification for Nickel-Iron-Chromium-Molybdenum Alloy (UNS N08320) Rod

ABSTRACT
This specification covers nickel-iron chromium-molybdenum alloy (UNS N08320) rod for use in general corrosive service. The rods are classified according to their sizes. The material shall conform to the composition limits specified. Chemical analysis and tension test shall be made to conform to the specified requirements.
SCOPE
1.1 This specification2 covers nickel-iron chromium-molybdenum alloy (UNS N08320)3 rod for use in general corrosive service.  
1.2 The following products are covered under this specification:  
1.2.1 Rods 5/16 to 3/4 in. (7.94 to 19.05 mm) excl in diameter, hot or cold finished, solution annealed and pickled or mechanically descaled.  
1.2.2 Rods 3/4 to 31/2 in. (19.05 to 88.9 mm) incl in diameter, hot or cold finished, solution annealed, ground or turned.  
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 and health practices, and determine the applicability of regulatory limitations prior to use.

General Information

• Status: Historical
• Publication Date: 31-May-2016
• 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)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation:B621 −02(Reapproved 2016)
Standard Specification for
Nickel-Iron-Chromium-Molybdenum Alloy (UNS N08320)
1
Rod
This standard is issued under the fixed designation B621; 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 E8 Test Methods for Tension Testing of Metallic Materials
2 E29 Practice for Using Significant Digits in Test Data to
1.1 This specification covers nickel-iron chromium-
3 Determine Conformance with Specifications
molybdenum alloy (UNS N08320) rod for use in general
E527 Practice for Numbering Metals and Alloys in the
corrosive service.
Unified Numbering System (UNS)
1.2 The following products are covered under this specifi-
E1473 Test Methods for Chemical Analysis of Nickel, Co-
cation:
balt and High-Temperature Alloys
5 3
1.2.1 Rods ⁄16 to ⁄4 in. (7.94 to 19.05 mm) excl in diameter,
hot or cold finished, solution annealed and pickled or mechani-
3. Terminology
cally descaled.
3.1 Definitions of Terms Specific to This Standard:
3 1
1.2.2 Rods ⁄4 to 3 ⁄2 in. (19.05 to 88.9 mm) incl in diameter,
3.1.1 rod, n—a product of round solid section furnished in
hot or cold finished, solution annealed, ground or turned.
straight lengths.
1.3 The values stated in inch-pound units are to be regarded
4. Ordering Information
as standard. The values given in parentheses are mathematical
conversions to SI units that are provided for information only
4.1 It is the responsibility of the purchaser to specify all
and are not considered standard.
requirements that are necessary for material ordered under this
specification. Examples of such requirements include but are
1.4 This standard does not purport to address all of the
not limited to the following:
safety concerns, if any, associated with its use. It is the
4.1.1 Dimensions—Nominal diameter and length. The
responsibility of the user of this standard to become familiar
shortest useable multiple length shall be specified (Table 1).
with all hazards including those identified in the appropriate
4.1.2 Certification—State if certification or a report of test
Safety Data Sheet (SDS) for this product/material as provided
by the manufacturer, to establish appropriate safety and health results is required (Section 15).
4.1.3 Purchaser Inspection—State which tests or inspec-
practices, and determine the applicability of regulatory limi-
tations prior to use. tions are to be witnessed (Section 13).
4.1.4 Samples for Product (Check) Analysis—State whether
2. Referenced Documents
samples shall be furnished (9.2.2).
4
2.1 ASTM Standards:
5. Chemical Composition
B880 Specification for General Requirements for Chemical
Check Analysis Limits for Nickel, Nickel Alloys and 5.1 The material shall conform to the composition limits
Cobalt Alloys specified in Table 2.
5.2 If a product (check) analysis is made by the purchaser,
1
This specification is under the jurisdiction of ASTM Committee B02 on the material shall conform to the requirements specified in
Nonferrous Metals and Alloys and is the direct responsibility of Subcommittee
Table 2 subject to the permissible tolerances in Specification
B02.07 on Refined Nickel and Cobalt and Their Alloys.
B880.
Current edition approved June 1, 2016. Published June 2016. Originally
approved in 1977. Last previous edition approved in 2011 as B621 – 02 (2011).
6. Mechanical Properties and Other Requirements
DOI: 10.1520/B0621-02R16.
2
For ASME Boiler and Pressure Vessel Code applications see related Specifi-
6.1 The mechanical properties of the material at room
cation SB-621 in Section II of that Code.
3 temperature shall conform to those shown in Table 3.
New designation established in accordance with ASTM E527 and SAE J1086,
Recommended Practice for Numbering Metals and Alloys (UNS).
4
For referenced ASTM standards, visit the ASTM website, www.astm.org, or 7. Dimensions, Mass and Permissible Variations
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
7.1 Diameter—The permissible variations from the speci-
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. fied diameter shall be as prescribed in Table 4.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

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B621−02(2016)
TABLE 1 Permissible Variations in Length of Rods
7.6 Weight—The material covered by this specification shall
3 3
Random mill lengths 2 to 12 ft (610 to 3660 mm) long be assumed to weigh 0.291 lb/in. (8.05 g/cm ).
with not more than 25 weight % under
7.7 Straightness—The maximum c
...

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: B621 − 02 (Reapproved 2011) B621 − 02 (Reapproved 2016)
Standard Specification for
Nickel-Iron-Chromium-Molybdenum Alloy (UNS N08320)
1
Rod
This standard is issued under the fixed designation B621; 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 *3
1.1 This specification covers nickel-iron chromium-molybdenum alloy (UNS N08320) rod for use in general corrosive
service.
1.2 The following products are covered under this specification:
5 3
1.2.1 Rods ⁄16 to ⁄4 in. (7.94 to 19.05 mm) excl in diameter, hot or cold finished, solution annealed and pickled or mechanically
descaled.
3 1
1.2.2 Rods ⁄4 to 3 ⁄2 in. (19.05 to 88.9 mm) incl in diameter, hot or cold finished, solution annealed, ground or turned.
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 Material Safety Data
Sheet (MSDS)(SDS) for this product/material as provided by the manufacturer, to establish appropriate safety and health practices,
and determine the applicability of regulatory limitations prior to use.
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
E8 Test Methods for Tension Testing of Metallic Materials
E29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
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:
3.1.1 rod, n—a product of round solid section furnished in straight lengths.
4. Ordering Information
4.1 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:
4.1.1 Dimensions—Nominal diameter and length. The shortest useable multiple length shall be specified (Table 1).
4.1.2 Certification—State if certification or a report of test results is required (Section 15).
4.1.3 Purchaser Inspection—State which tests or inspections are to be witnessed (Section 13).
4.1.4 Samples for Product (Check) Analysis—State whether samples shall be furnished (9.2.2).
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, 2011June 1, 2016. Published June 2011June 2016. Originally approved in 1977. Last previous edition approved in 20062011 as B621 – 02
(2006).(2011). DOI: 10.1520/B0621-02R11.10.1520/B0621-02R16.
2
For ASME Boiler and Pressure Vessel Code applications see related Specification SB-621 in Section II of that Code.
3
For ASME Boiler and Pressure Vessel Code applications see related Specification SB-621 in Section II of that Code.
* NewNew designation established in accordance with ASTM E527 and SAE J1086, Recommended 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’sstandard’s Document Summary page on the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
B621 − 02 (2016)
TABLE 1 Permissible Variations in Length of Rods
Random mill lengths 2 to 12 ft (610 to 3660 mm) long
with not more than 25 weight % under
4 ft (1.22 m).
Multiple lengths Furnished in multiples of a
specified unit length, within the
length limits indicated above.
1
For each multiple, an allowance of ⁄4 in. (6.35
mm) shall be made for cutting, unless
otherwise specified. At the
...