ASTM B621-02

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

SCOPE
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:
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 3 1/2 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 the standard. The values given in parentheses are for information only.
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 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: 09-Oct-2002
• 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

Relations

• Replaces: ASTM B621-95a - Standard Specification for Nickel-Iron-Chromium-Molybdenum Alloy (UNS N08320) Rod
• Effective Date: 10-Oct-2002
• Replaced By: ASTM B621-02(2006) - Standard Specification for Nickel-Iron-Chromium-Molybdenum Alloy (UNS N08320) Rod
• Effective Date: 01-Dec-2006

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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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: B 621 – 02
Standard Specification for
Nickel-Iron-Chromium-Molybdenum Alloy (UNS N08320)
1
Rod
This standard is issued under the fixed designation B 621; 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 (e) indicates an editorial change since the last revision or reapproval.
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1. Scope Cobalt, and High-Temperature Alloys
2
1.1 This specification covers nickel-iron chromium-
3. Terminology
*
molybdenum alloy (UNS N08320) rod for use in general
3.1 Definitions of Terms Specific to This Standard:
corrosive service.
3.1.1 rod—a product of round solid section furnished in
1.2 The following products are covered under this specifi-
straight lengths.
cation:
5 3
1.2.1 Rods ⁄16 to ⁄4 in. (7.94 to 19.05 mm) excl in diameter,
4. Ordering Information
hot or cold finished, solution annealed and pickled or mechani-
4.1 It is the responsibility of the purchaser to specify all
cally descaled.
requirements that are necessary for material ordered under this
3 1
1.2.2 Rods ⁄4 to 3 ⁄2 in. (19.05 to 88.9 mm) incl in diameter,
specification. Examples of such requirements include but are
hot or cold finished, solution annealed, ground or turned.
not limited to the following:
1.3 The values stated in inch-pound units are to be regarded
4.1.1 Dimensions—Nominal diameter and length. The
as the standard. The values given in parentheses are for
shortest useable multiple length shall be specified (Table 1).
information only.
4.1.2 Certification—State if certification or a report of test
1.4 This standard does not purport to address all of the
results is required (Section 15).
safety concerns, if any, associated with its use. It is the
4.1.3 Purchaser Inspection—State which tests or inspec-
responsibility of the user of this standard to become familiar
tions are to be witnessed (Section 13).
with all hazards including those identified in the appropriate
4.1.4 Samples for Product (Check) Analysis—State
Material Safety Data Sheet for this product/material as pro-
whether samples shall be furnished (9.2.2).
vided by the manufacturer, to establish appropriate safety and
health practices, and determine the applicability of regulatory
5. Chemical Composition
limitations prior to use.
5.1 The material shall conform to the composition limits
specified in Table 2.
2. Referenced Documents
5.2 If a product (check) analysis is made by the purchaser,
2.1 ASTM Standards:
the material shall conform to the requirements specified in
B 880 Specification for General Requirements for Chemical
Table 2 subject to the permissible tolerances in Specification
CheckAnalysisLimitsforNickel,NickelAlloyandCobalt
B 880.
3
Alloys
4
E 8 Test Methods forTensionTesting of Metallic Materials
6. Mechanical Properties and Other Requirements
E 29 Practice for Using Significant Digits in Test Data to
6.1 The mechanical properties of the material at room
5
Determine Conformance with Specifications
temperature shall conform to those shown in Table 3.
E 1473 Test Methods for Chemical Analysis of Nickel,
7. Dimensions, Mass and Permissible Variations
1
7.1 Diameter—The permissible variations from the speci-
This specification is under the jurisdiction of ASTM Committee B02 on
Nonferrous Metals and Alloys and is the direct responsibility of Subcommittee fied diameter shall be as prescribed in Table 4.
B02.07 on Refined Nickel and Cobalt and Their Alloys .
7.2 Out of Roundness—The permissible variation in round-
Current edition approved Oct. 10, 2002. Published December 2002. Originally
ness shall be as prescribed in Table 4.
published as B 621 – 77. Last previous edition B 621 – 95a.
2
7.3 Matching Allowances—When the surfaces of finished
For ASME Boiler and Pressure Vessel Code applications see related Specifi-
cation SB-621 in Section II of that Code.
material are to be machined, the following allowances are
* New designation established in accordance withASTM E 527 and SAE J1086,
suggested for normal machining operations:
Recommended Practice for Numbering Metals and Alloys (UNS).
3
Annual Book of ASTM Standards, Vol 02.04.
4
Annual Book of ASTM Standards, Vol 03.01.
5 6
Annual Book of ASTM Standards, Vol 14.02. Annual Book of ASTM Standards, Vol 03.05.
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B621–02
TABLE 1 Permissible Variations in Length of Rods
8. Workmanship, Finish, and Appearance
Random mill lengths 2 to 12 ft (610 to 3660 mm) long
8.1 The material shall be uniform in quality and condition,
with not more than 25 weight % under
smooth, and free of injurious imperfections.
4 ft (1.22 m).
Multiple lengths Furnis
...