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ASTM B621-02(2006)

(Specification)

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

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 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 31/2 in. (19.05 to 88.9 mm) inch 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 (MSDS) 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
30-Nov-2006
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
Current Stage
Ref Project

Relations

Replaces
ASTM B621-02 - Standard Specification for Nickel-Iron-Chromium-Molybdenum Alloy (UNS N08320) Rod
Effective Date
01-Dec-2006
Replaced By
ASTM B621-02(2011) - Standard Specification for Nickel-Iron-Chromium-Molybdenum Alloy (UNS N08320) Rod
Effective Date
01-Jun-2011

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ASTM B621-02(2006) - Standard Specification for Nickel-Iron-Chromium-Molybdenum Alloy (UNS N08320) RodASTM B621-02(2006) - Standard Specification for Nickel-Iron-Chromium-Molybdenum Alloy (UNS N08320) Rod
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ASTM B621-02(2006) - Standard Specification for Nickel-Iron-Chromium-Molybdenum Alloy (UNS N08320) Rod
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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 2006)
Standard Specification for
Nickel-Iron-Chromium-Molybdenum Alloy (UNS N08320)
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 E29 Practice for Using Significant Digits in Test Data to
2 Determine Conformance with Specifications
1.1 This specification covers nickel-iron chromium-
*
E527 Practice for Numbering Metals and Alloys in the
molybdenum alloy (UNS N08320) rod for use in general
Unified Numbering System (UNS)
corrosive service.
E1473 Test Methods for Chemical Analysis of Nickel,
1.2 The following products are covered under this specifi-
Cobalt, and High-Temperature Alloys
cation:
5 3
1.2.1 Rods ⁄16 to ⁄4 in. (7.94 to 19.05 mm) excl in diameter,
3. Terminology
hot or cold finished, solution annealed and pickled or mechani-
3.1 Definitions of Terms Specific to This Standard:
cally descaled.
3.1.1 rod, n—a product of round solid section furnished in
3 1
1.2.2 Rods ⁄4 to 3 ⁄2 in. (19.05 to 88.9 mm) incl in diameter,
straight lengths.
hot or cold finished, solution annealed, ground or turned.
1.3 The values stated in inch-pound units are to be regarded
4. Ordering Information
as the standard. The values given in parentheses are for
4.1 It is the responsibility of the purchaser to specify all
information only.
requirements that are necessary for material ordered under this
1.4 This standard does not purport to address all of the
specification. Examples of such requirements include but are
safety concerns, if any, associated with its use. It is the
not limited to the following:
responsibility of the user of this standard to become familiar
4.1.1 Dimensions—Nominal diameter and length. The
with all hazards including those identified in the appropriate
shortest useable multiple length shall be specified (Table 1).
Material Safety Data Sheet (MSDS) for this product/material
4.1.2 Certification—State if certification or a report of test
as provided by the manufacturer, to establish appropriate
results is required (Section 15).
safety and health practices, and determine the applicability of
4.1.3 Purchaser Inspection—State which tests or inspec-
regulatory limitations prior to use.
tions are to be witnessed (Section 13).
2. Referenced Documents 4.1.4 Samples for Product (Check) Analysis—State
3 whether samples shall be furnished (9.2.2).
2.1 ASTM Standards:
B880 Specification for General Requirements for Chemical
5. Chemical Composition
Check Analysis Limits for Nickel, Nickel Alloys and
5.1 The material shall conform to the composition limits
Cobalt Alloys
specified in Table 2.
E8 Test Methods for Tension Testing of Metallic Materials
5.2 If a product (check) analysis is made by the purchaser,
the material shall conform to the requirements specified in
This specification is under the jurisdiction of ASTM Committee B02 on
Table 2 subject to the permissible tolerances in Specification
Nonferrous Metals and Alloys and is the direct responsibility of Subcommittee
B880.
B02.07 on Refined Nickel and Cobalt and Their Alloys.
Current edition approved Dec. 1, 2006. Published December 2006. Originally
6. Mechanical Properties and Other Requirements
approved in 1977. Last previous edition approved in 2002 as B621 – 02. DOI:
10.1520/B0621-02R06.
6.1 The mechanical properties of the material at room
For ASME Boiler and Pressure Vessel Code applications see related Specifi-
temperature shall conform to those shown in Table 3.
cation SB-621 in Section II of that Code.
* New designation established in accordance withASTM E527 and SAE J1086,
7. Dimensions, Mass and Permissible Variations
Recommended Practice for Numbering Metals and Alloys (UNS).
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
7.1 Diameter—The permissible variations from the speci-
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
fied diameter shall be as prescribed in Table 4.
Standards volume information, refer to the standard’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.
B621 – 02 (2006)
TABLE 1 Permissible Variations in Length of Rods
7.7 Straightness—The maximum curvature (depth of cord)
Random mill lengths 2 to 12 ft (610 to 3660 mm) long shall not exceed 0.050 in. multiplied by the length of the cord
with not more than 25 weight % under
in feet (0.04 mm multiplied by the length in centimetres).
4 ft (1.22 m).
Multiple lengths Furnished in multiples of a
specified unit length, within the
8. Workmanship, Finish, and Appearance
length limits indicated above.
For each multiple, an allowance of ⁄4 in. (6.35 8.1 The material shall be uniform in quality and condition,
smooth, and free of injurious imperfections.
mm) shall be made for cutting, unless
otherwise specified. At the
manufacturer’s option, individual
9. Sampling
specified unit lengths may be furnished.
Nominal lengths Specified nominal lengths having 9.1 Lots for Chemical Analysis and Mechanical Testing:
a range of not less than 2 ft (610
9.1.1 A lot for chemical analysis shall consist of one heat.
mm) with no short lengths allowed.
Cut lengths A specified length to which all
9.1.2 A lot of bar for mechanical testing shall be defined as
rods shall be cut with a permissible
the material from one heat in the same condition and specified
variation of + ⁄8 in. (3.17 mm) - 0.
diameter.
9.2 Sampling for Chemical Analysis:
TABLE 2 Chemical Requirements
9.2.1 A representative sample shall be obtained from each
Element Composition Limits,%
heat during pouring or subsequent processing.
Nickel 25.0–27.0
9.2.2 Product (check) analysis shall be wholly the respon-
A
Iron remainder
sibility of the purchaser.
Chromium 21.0–23.0
Molybdenum 4.0–6.0 9.3 Sampling for Mechanical Testing:
Manganese, max 2.5
9.3.1 Arepresentativesampleshallbetakenfromeachlotof
Carbon, max 0.05
finished material.
Titanium, min 4 3 carbon
Silicon, max 1.00
Phosphorus, max 0.04
10. Number of Tests and Retests
Sulfur, max 0.03
A
See 12.1.1.
10.1 Chemical Analysis—One test per heat.
10.2 Tension Tests—On
...

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1.2 Five classes of pipe are covered as follows:  
1.2.1 Class 1—Pipe shall be double welded by processes employing filler metal in all passes and shall be completely radiographed.  
1.2.2 Class 2—Pipe shall be double welded by processes employing filler metal in all passes. No radiography is required.  
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1.2.4 Class 4—Same as Class 3 except that the weld pass exposed to the inside pipe surface may be made without the addition of filler metal.  
1.2.5 Class 5—Pipe shall be double welded by processes employing filler metal in all passes and shall be spot radiographed.  
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SCOPE
1.1 This specification covers UNS N08028 and N08029 seamless cold-finished or hot-finished pipe and tube intended for general corrosive service.  
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 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.

  • Technical specification
    2 pages
    English language
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  • Technical specification
    2 pages
    English language
    sale 15% off