ASTM A467/A467M-07(2012)
(Specification)Standard Specification for Machine and Coil Chain
Standard Specification for Machine and Coil Chain
ABSTRACT
This specification covers welded carbon steel machine chain and coil chain. Although these chains are not intended for pocket wheel use, they can be used for pocket and sprocket wheel use. There are two classes each of machine and coil chain: class MS which are machine, straight-link steel chains; class MT which are machine, twist-link steel chains; class CS which are coil, straight-link chains; and class CT, which are coil, twist-link steel chains. The steel shall be made by the open-hearth, electric-furnace, or basic-oxygen process. Classes MS, MT, CS, and CT shall be electric welded. All chain in classes MS and CS shall be subjected to proof test and all chain classes shall undergo a breaking force test.
SCOPE
1.1 This specification covers welded carbon steel machine chain and coil chain. Although these chains are not intended for pocket wheel use, they can be used for pocket and sprocket wheel use. This chain shall never be used for overhead lifting applications.
1.2 There are two classes each of machine and coil chain:
1.2.1 Class MS—Machine, straight-link steel chain,
1.2.2 Class MT—Machine, twist-link steel chain,
1.2.3 Class CS—Coil, straight-link chain, and
1.2.4 Class CT—Coil, twist-link steel chain.
1.3 The values stated in either inch-pound units or SI units shall be regarded separately as standard. Within the text, the SI units are shown in brackets. 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.
General Information
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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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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:A467/A467M −07 (Reapproved 2012)
Standard Specification for
Machine and Coil Chain
This standard is issued under the fixed designationA467/A467M; the number immediately following the designation indicates the year
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 (´) indicates an editorial change since the last revision or reapproval.
1. Scope* grade and size chain. If a continuous length of chain exceeds
3000 ft [1000 m], it shall also be considered a lot.
1.1 This specification covers welded carbon steel machine
3.1.3 overhead lifting, n—process of lifting that would
chainandcoilchain.Althoughthesechainsarenotintendedfor
elevate a freely suspended load such that dropping the load
pocket wheel use, they can be used for pocket and sprocket
would present a possibility of bodily injury or property
wheel use. This chain shall never be used for overhead lifting
damage.
applications.
3.1.4 proof test, n—quality control tensile test applied to
1.2 There are two classes each of machine and coil chain:
chain for the purpose of verifying weld and material quality.
1.2.1 Class MS—Machine, straight-link steel chain,
3.1.4.1 Discussion—It is the minimum force in pounds or
1.2.2 Class MT—Machine, twist-link steel chain,
newtons which the chain has withstood at the time it left the
1.2.3 Class CS—Coil, straight-link chain, and
producer, under a test in which a constantly increasing force
1.2.4 Class CT—Coil, twist-link steel chain.
has been applied in direct tension to a straight length of chain.
1.3 The values stated in either inch-pound units or SI units
Proof test loads are a manufacturing integrity test and shall not
shallberegardedseparatelyasstandard.Withinthetext,theSI
be used as criteria for service or design purposes.
units are shown in brackets. The values stated in each system
3.1.5 working load limit (WLL), n—maximum combined
may not be exact equivalents; therefore, each system must be
static and dynamic load in pounds or kilograms that shall be
used independently of the other, without combining values in
applied in direct tension to an undamaged, straight length of
any way.
chain.
2. Referenced Documents
4. Ordering Information
2.1 ASTM Standards:
A751Test Methods, Practices, and Terminology for Chemi- 4.1 It shall be the responsibility of the purchaser to specify
all requirements that are necessary for material ordered under
cal Analysis of Steel Products
this specification. Such requirements to be considered include,
3. Terminology
but are not limited to, the following:
4.1.1 ASTM Specification A467/A467Mand year of issue,
3.1 Definitions of Terms Specific to This Standard:
4.1.2 Trade size of chain,
3.1.1 breaking force, minimum, n—minimum force in
4.1.3 Class of chain,
poundsornewtonsatwhichthechain,duringmanufacture,has
4.1.4 Quantity of chain in feet or metres,
beenfoundbyrepresentativetestingtobreakwhenaconstantly
4.1.5 Length of each piece, if required,
increasing force is applied in direct tension.
4.1.6 Finish, if required,
3.1.1.1 Discussion—This test is a manufacturer’s attribute
4.1.7 Certification of test(s), if required, and
acceptance test and shall not be used as criteria for service.
4.1.8 Acceptance of inspection by purchaser, if required.
3.1.2 lot, n—forthepurposeofacceptancetesting,alotshall
consist of 3000 ft [1000 m], or fraction thereof, of the same
5. Manufacture
5.1 Melting Process— The steel shall be made by the
This specification is under the jurisdiction ofASTM Committee A01 on Steel,
open-hearth, electric-furnace, or basic-oxygen process.
Stainless Steel and RelatedAlloys and is the direct responsibility of Subcommittee
A01.27 on Steel Chain.
5.2 Welding Process— Classes MS, MT, CS, and CT shall
Current edition approved Nov. 1, 2012. Published November 2012. Originally
be electric welded.
approved in 1964. Last previous edition approved in 2007 as A467/A467M–07.
DOI: 10.1520/A0467_A0467M-07R12.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or 6. Chemical Requirements
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
6.1 Product Analysis— The material used shall conform to
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. the following chemical requirements:
*A Summary of Changes section appears at the end of this standard
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A467/A467M−07 (2012)
7.3.3 The elongation shall be based on the total extension at
Classes MS, MT,
Elements, max, %
CS, and CT
fracture. This is expressed as a percentage of the change in
Carbon 0.37
length (∆ L) divided by the original gauge length (L{0}). The
Phosphorus 0.048
elongation may be determined by the equation below or by
Sulfur 0.058
autographic recorder or side scale.
6.2 The analysis may be made by the purchaser from the
bars or finished chain. Samples for analysis shall represent the Elongation % 5 ∆L/L 0 3100
~ ! $ $ %%
full cross section of the specimen.
where:
6.3 For referee purposes, Test Methods, Practices, and
∆L = test specimen final length at fracture – test specimen
Terminology A751 shall be used.
original gauge length L{0}, and
L{0} = original gauge length (sum or the inside lengths of
7. Mechanical Properties Requirements
the test chain links, not counting the fixture links, or
7.1 Proof Test—All chain in Classes MS and CS shall be as determined in 7.3.2).
proof tested to at least the proof load prescribed in Table 1 and
7.3.4 The elongation shall be a minimum of 10%.
Table 2 for the appropriate size and class chain. When so
7.4 One test for breaking strength and elongation shall be
tested, it shall withstand these loads without loss of chain
made from each lot. The elongation and breaking force tests
integrity. Links or chain segments not withstanding the proof
may be performed at the same time on the same test specimen.
test load shall be removed from the chain.
NOTE 1—Chain Classes MT and CT do not require proof testing since 8. Dimensional Requirements
the twist operation is an adequate verification of link integrity.
8.1 The chain shall conform to the dimensional require-
7.2 Breaking Force Test:
ments specified in Tables 1-4 for the appropriate class and size
7.2.1 The tension test specimen shall consist of a length
chain. Inside widths and lengths are not to exceed 65% from
from the lot containing at least the number of links specified in
the nominal dimensions.
7.3.1.
8.2 Diameter—The diameter of the material from which the
7.2.2 Fixtures for securing chain in a testing machine shall
chain is manufactured shall not be smaller than the material
be properly designed to securely support the shoulder of the
diameter listed in Table 1 and Table 2 within a tolerance of
link(Note2).Theopeninginthefixtureshallnotbemorethan
−7%. Oversized wire may be used for all applications.
125%ofthestockdiameterbeingtested.Linksengagedinthe
testingfixtureshallnotbeconsideredpartofthetestspecimen.
9. Finish
NOTE2—U-boltsofthesameorlargerdiameterandthesameorgreater
9.1 The manufacturer may apply a surface treatment or
strength than the chain may be used to secure the chain to the jaws of the
finish of his own choice for identification or corrosion resis-
testing machine.
tance unless the customer specifies otherwise. The surface
7.2.3 Test specimens from the finished chain shall conform
treatment or finish shall not alter the chain properties in a
to the minimum breaking force requirements as prescribed in
manner that would cause the chain to not meet the other
Tables 1-4 for their respective sizes and classes.
provisions of this standard.
7.3 Elongation:
10. Retests
7.3.1 The elongation test specimen shall consist of a length
from the lot containing at least the number of links in Table 5. 10.1 If the original test specimen fails to conform to the
7.3.2 A positive load not exceeding 10% of the proof test requirements of 7.2.3, two additional test specimens from the
shall be applied
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