ASTM A391/A391M-01
(Specification)Standard Specification for Grade 80 Alloy Steel Chain
Standard Specification for Grade 80 Alloy Steel Chain
SCOPE
1.1 This specification covers Grade 80 heat-treated alloy steel chain for such applications as slings, lifting assemblies, and load binding.
Note 1—This specification does not cover alloy steel chain for pocket wheel applications.
1.2 The values stated in either SI units or in other units shall be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system must be used independently of the other, without combining values in any way.
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Designation: A 391/A 391M – 01
Standard Specification for
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Grade 80 Alloy Steel Chain
ThisstandardisissuedunderthefixeddesignationA391/A391M;thenumberimmediatelyfollowingthedesignationindicatestheyear
of original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.
A superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
1. Scope* 3.1.2 lot—for the purpose of acceptance testing, a lot shall
consist of 3000 ft [1000 m], or fraction thereof, of the same
1.1 This specification covers Grade 80 heat-treated alloy
grade and size chain. If a continuous length of chain exceeds
steel chain for such applications as slings, lifting assemblies,
3000 ft [1000 m], it shall also be considered a lot.
and load binding.
3.1.3 proof test—a quality control tensile test applied to
NOTE 1—This specification does not cover alloy steel chain for pocket
chain for the purpose of verifying weld and material quality. It
wheel applications.
is the minimum force in pounds or newtons which the chain
1.2 ThevaluesstatedineitherSIunitsorinotherunitsshall
has withstood at the time it left the producer, under a test in
be regarded separately as standard. The values stated in each
which a constantly increasing force has been applied in direct
system may not be exact equivalents; therefore, each system
tension to a straight length of chain. Proof test loads are a
must be used independently of the other, without combining
manufacturingintegritytestandshallnotbeusedascriteriafor
values in any way.
service or design purposes.
3.1.4 working load limit (WLL)—the maximum combined
2. Referenced Documents
static and dynamic load in pounds or kilograms that shall be
2.1 ASTM Standards:
applied in direct tension to an undamaged straight length of
A29/A29M SpecificationforSteelBars,CarbonandAlloy,
chain.
Hot-Wrought and Cold-Finished, General Requirements
2
4. Ordering Information
for
E30 Test Methods for Chemical Analysis of Steel, Cast
4.1 It shall be the responsibility of the purchaser to specify
3
Iron, Open-Hearth Iron, and Wrought Iron
all requirements that are necessary for material ordered under
E44 Definitions of Terms Relating to Heat Treatment of
this specification. Such requirements to be considered include,
4
Metals
but are not limited to, the following:
E350 TestMethodsforChemicalAnalysisofCarbonSteel,
4.1.1 Product to conform to SpecificationA391 orA391M
Low-Alloy Steel, Silicon Electrical Steel, Ingot Iron, and
and year of issue,
3
Wrought Iron
4.1.2 Nominal size of chain in in. [mm],
E415 Test Method for Optical Emission Vacuum Spectro-
4.1.3 Quantity of chain in ft [m],
3
metric Analysis of Carbon and Low-Alloy Steel
4.1.4 Length of each piece, if required,
4.1.5 Finish, if required,
3. Terminology
4.1.6 Certification of test(s), if required, and
3.1 Definitions of Terms Specific to This Standard:
4.1.7 Acceptance of inspection by purchaser, if required.
3.1.1 breaking force, minimum—the minimum force in
5. Manufacturing
poundsornewtonsatwhichthechain,duringmanufacture,has
been found by testing to break when a constantly increasing
5.1 Melting Process—The alloy steel shall be made to a
force is applied in direct tension. This test is a manufacturer’s
fully-killed fine austenitic grain process.
attribute acceptance test and shall not be used as criteria for
5.2 Welding Process—Alloysteelchainmaybemadebythe
service.
electric welding or gas welding process.
5.3 Heat Treatment—After welding, alloy steel chain shall
be heat treated before applying the proof test. Heat treatment
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This specification is under the jurisdiction ofASTM CommitteeA01 on Steel,
shall include quenching and tempering as defined by Defini-
Stainless Steel, and RelatedAlloys and is the direct responsibility of Subcommittee
tions E44.
A01.27 on Steel Chain.
Current edition approved Sept. 10, 2001. Published November 2001. Originally
published as A391–55T. Last previous edition A391–98.
2
Annual Book of ASTM Standards, Vol 01.05.
3
Discontinued. See 1995 Annual Book of ASTM Standards, Vol 03.05.
4
Discontinued. See 1993 Annual Book of ASTM Standards, Vol 01.02.
*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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A 391/A 391M – 01
TABLE 1 Grade 80 Alloy Chain Mechanical and Dimensional Requirements
A
Nominal Material Working Load Limit, Proof Test, Minimum Breaking Inside Length, Inside Width,
A
Chain Size Diameter max min Force max min to max
in. mm in. mm lb kg lb kN lb kN in. mm in. mm
7
⁄32 5.5 0.217 5.5 2 100 970 4 200 19.0 8 400 38.0 0.69 17.6 0.281 to 0.325 7.14 to 8.25
9
⁄32 7.0 0.276 7.0 3 500 1 570 7 000 30.8 14 000 61.
...
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