Standard Specification for Forged Grade 80 and Grade 100 Steel Lifting Components and Welded Attachment Links

ABSTRACT
This specification covers forged alloy steel lifting components and welded coupling and master links for Grade 80 and Grade 100 alloy chain slings. The steel materials shall be melt processed either by electric process or oxygen blown process. The steel shall be fully killed and shall conform to the required austenitic grain size. Product analysis shall be performed on and the steel specimens shall conform to the required chemical compositions of nickel, chromium, molybdenum, phosphorus and sulfur. Proof tests shall be performed and the materials shall conform to the required values of working load and breaking force. Deformation test, breaking force test and fatigue test shall be performed on the steel materials.
SCOPE
1.1 This specification covers the requirements for forged alloy steel lifting components and welded coupling and master links for Grade 80 and Grade 100 alloy chain slings as described in Specification A 906/A 906M.
1.2 Two grades of components and welded links are covered:
1.2.1 Grade 80.
1.2.2 Grade 100.
1.3 This specification is a performance standard. Other standards apply to use of these products. Some of these standards are: OSHA 1910.184, ASME B30.10, and ASME B30.9.
1.4 The values stated in either inch-pound or SI units are to be regarded separately as standard. Within the text, the SI units are shown in brackets. The values stated in each system are not exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in nonconformance with the specification.

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Historical
Publication Date
09-May-2002
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ASTM A952/A952M-02 - Standard Specification for Forged Grade 80 and Grade 100 Steel Lifting Components and Welded Attachment Links
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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: A952/A952M – 02
Standard Specification for
Forged Grade 80 and Grade 100 Steel Lifting Components
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and Welded Attachment Links
This standard is issued under the fixed designationA952/A952M; 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* E44 Definitions of Terms Relating to Heat Treatment of
3
Metals
1.1 This specification covers the requirements for forged
E165 PracticeforLiquidPenetrantExaminationforGeneral
alloy steel lifting components and welded coupling and master
Industry
links for Grade 80 and Grade 100 alloy chain slings as
E709 Guide for Magnetic Particle Testing
described in Specification A906/A906M.
2.2 Other Standards:
1.2 Two grades of components and welded links are cov-
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OSHA 1910.184 Slings
ered:
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ASME B30.9 Slings
1.2.1 Grade 80.
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ASME B30.10 Hooks
1.2.2 Grade 100.
1.3 This specification is a performance standard. Other
3. Terminology
standards apply to use of these products. Some of these
3.1 Definitions of Terms Specific to This Standard:
standards are: OSHA 1910.184, ASME B30.10, and ASME
3.1.1 breaking force, minimum—the minimum force in
B30.9.
pounds or newtons at which the component has been found by
1.4 The values stated in either inch-pound or SI units are to
verification testing to break when a constantly increasing force
be regarded separately as standard.Within the text, the SI units
was applied in direct tension. This test is a manufacturer’s
are shown in brackets.The values stated in each system are not
design verification test and shall not be used as criteria for
exact equivalents; therefore, each system shall be used inde-
service.
pendentlyoftheother.Combiningvaluesfromthetwosystems
3.1.2 chain sling—an assembly consisting of alloy steel
may result in nonconformance with the specification.
chain joined to upper and lower end components for attaching
2. Referenced Documents loads to be lifted by a crane or lifting machine.
2 3.1.3 coupling link—a link fitted to the end of the chain to
2.1 ASTM Standards:
connect to another component of the sling. See Fig. 1.
A29/A29M Specification for Steel Bars, Carbon and Alloy,
3.1.4 master link—a link used as an upper end component
Hot-Wrought, General Requirements for
of a chain sling and by means of which the sling may be
A391/A391M Specification for Grade 80Alloy Steel Chain
attached to a crane or other device. See Fig. 1.
A751 Test Methods, Practices, andTerminology for Chemi-
3.1.5 master coupling link (secondary or intermediate
cal Analysis of Steel Products
link)—a link used on three and four leg slings to connect the
A906/A906M Specification for Grade 80 and Grade 100
legs to a master link. See Fig. 1.
Alloy Steel Chain Slings for Overhead Lifting
3.1.6 proof test—a quality control tensile test applied to
A973/A973M Specification for Grade 100 Alloy Steel
components for the purpose of verifying manufacturing and
Chain
material quality. It is the minimum force in pounds or newtons
E4 Practices for Force Verification of Testing Machines
which the component has withstood at the time it left the
producer, under a test in which a constantly increasing force
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This specification is under the jurisdiction of ASTM Committee A01 on Steel,
has been applied in direct tension. Proof test loads are a
Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee
manufacturing integrity test and shall not be used as criteria for
A01.27 on Steel Chain.
service.
Current edition approved May 10, 2002. Published June 2002. Originally
published as A952–96. Last previous edition A952–98. DOI: 10.1520/
A0952_A0952M-02.
2 3
For referenced ASTM standards, visit the ASTM website, www.astm.org, or Withdrawn. The last approved version of this historical standard is referenced
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM on www.astm.org.
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Standards volume information, refer to the standard’s Document Summary page on Available from OSHA.
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the ASTM website. Available from ASME, 345 E. 47th Street, New York, NY 10017.
*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.
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A952/A952M – 02
FIG. 1 General Component Configuration
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A952/A952M – 02
FIG. 1 General Component Configuration (continued)
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A952/A952M – 02
3.1.7 traceability code—a series of letters, or numbers, or 6.2 Melting Process
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