ASTM D6320-02
(Test Method)Standard Test Methods for Single Filament Hose Reinforcing Wire Made from Steel
Standard Test Methods for Single Filament Hose Reinforcing Wire Made from Steel
SCOPE
1.1 These test methods cover testing of single filament steel wires that are used to reinforce hose products. By agreement, these test methods may be applied to similar filaments used for reinforcing other rubber products.
1.2 These test methods describe test procedures only and do not establish specifications or tolerances.
1.3 These test methods cover the determinations of the mechanical properties listed below:
PropertySectionBreaking force (strength)7-13Yield strength7-13Elongation7-13Knot strength14-20Torsion resistance21-27Reverse bend28-34Wrap35-41Diameter42-48
1.4 These test methods are written in SI units; the inch-pound units which are provided are not necessarily exact equivalents of the SI units. Either system of units may be used in these test methods. In the case of referee decisions, the SI units will prevail.
1.5 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 and health practices and determine the applicability of regulatory limitations prior to use.
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Designation: D 6320 – 02
Standard Test Methods for
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Single Filament Hose Reinforcing Wire Made from Steel
This standard is issued under the fixed designation D 6320; 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 Hose Reinforcing Wire and Fabrics
1.1 These test methods cover testing of single filament steel
3. Terminology
wires that are used to reinforce hose products. By agreement,
3.1 Definitions:
these test methods may be applied to similar filaments used for
3.1.1 For definitions of terms relating to tire cord, bead wire,
reinforcing other rubber products.
hose wire, and tire cord fabrics, refer to Terminology D 6477.
1.2 These test methods describe test procedures only and do
3.1.2 For definitions of other terms related to textiles, refer
not establish specifications or tolerances.
to Terminology D 123.
1.3 These test methods cover the determinations of the
mechanical properties listed below:
4. Summary of Test Method
Property Section
4.1 A summary of the directions prescribed for determina-
Breaking force (strength) 7-13
Yield strength 7-13
tion of specific properties of hose reinforcing wire is stated in
Elongation 7-13
the appropriate sections of the specific test methods that follow.
Knot strength 14-20
Torsion resistance 21-27
5. Significance and Use
Reverse bend 28-34
Wrap 35-41
5.1 The procedures for the determination of properties of
Diameter 42-48
single-filament hose reinforcing wire made from steel are
1.4 These test methods are written in SI units; the inch-
considered satisfactory for acceptance testing of commercial
pound units which are provided are not necessarily exact
shipments of this product because the procedures are the best
equivalents of the SI units. Either system of units may be used
available and have been used extensively in the trade.
in these test methods. In the case of referee decisions, the SI
5.1.1 In the case of a dispute arising from differences in
units will prevail.
reported test results when using these test methods for accep-
1.5 This standard does not purport to address all of the
tance testing of commercial shipments, the purchaser and
safety concerns, if any, associated with its use. It is the
supplier should conduct comparative tests to determine if there
responsibility of the user of this standard to establish appro-
is a statistical bias between their laboratories. Competent
priate safety and health practices and determine the applica-
statistical assistance is recommended for investigation of bias.
bility of regulatory limitations prior to use.
As a minimum, two parties should take a group of test
specimens which are as homogeneous as possible and which
2. Referenced Documents
are from a lot of material of the type in question. The test
2.1 ASTM Standards:
specimens then should be randomly assigned in equal numbers
D 76 Specification for Tensile Testing Machines for Tex-
to each laboratory for testing. The average results from the two
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tiles
laboratories should be compared by using an appropriate
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D 123 Terminology Relating to Textiles
statistical test and an acceptable probability level chosen by the
D 2969 Methods for Testing Filaments, Strands, Cords, and
two parties before testing is begun. If a bias is found, either its
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Fabrics Made from Steel
cause must be determined and corrected or the purchaser and
D 6477 Terminology Relating to Tire Cord, Bead Wire,
supplier must agree to interpret future test results with consid-
eration to the known bias.
6. Sampling
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These test methods are under the jurisdiction of ASTM Committee D13 on
6.1 Lot Sample—As a lot sample for acceptance testing,
Textiles and are the direct responsibility of Subcommittee D13.19 on Tire Cord and
take at random the number of reels, coils, spools, or other
Fabrics.
Current edition approved Sept. 10, 2002. Published November 2002. Originally
published as D6320–98. Last previous edition D6320–99.
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D6320–02
shipping units of wire directed in an applicable material computing equipment that may be programmed to calculate
specification or other agreement between purchaser and sup- and print the results for each of the force - extension properties,
plier. Consider reels, coils, spools, or other shipping units of optional.
wire to be the primary sampling units. 10.3 Extensometer, any device that can be attached to the
s
...
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