ASTM D6320-04
(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
SIGNIFICANCE AND USE
The procedures for the determination of properties of single-filament hose reinforcing wire made from steel are considered satisfactory for acceptance testing of commercial shipments of this product because the procedures are the best available and have been used extensively in the trade.
5.1.1 In the case of a dispute arising from differences in reported test results when using these test methods for acceptance testing of commercial shipments, the purchaser and supplier should conduct comparative tests to determine if there is a statistical bias between their laboratories. Competent statistical assistance is recommended for investigation of bias. As a minimum, two parties should take a group of test specimens which are as homogeneous as possible and which are from a lot of material of the type in question. The test specimens then should be randomly assigned in equal numbers to each laboratory for testing. The average results from the two laboratories should be compared by using an appropriate statistical test and an acceptable probability level chosen by the two parties before testing is begun. If a bias is found, either its cause must be determined and corrected or the purchaser and supplier must agree to interpret future test results with consideration to the known bias.
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)Yield strengthElongationKnot strengthTorsion resistanceReverse bendWrapDiameter
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.
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.
1.5 This test method covers the measurement of breaking force, yield strength, and elongation of single filament steel reinforcing wire in a tensile test.
1.6 This section describes the test procedure to determine the knot test characteristic of hydraulic hose wire with a diameter less than or equal to 0.82 mm (0.032 in.). In practice, the knot test is most suitable for wires less than 0.50 mm (0.020 in.).
1.7 This test method covers the determination of wire ductility by twisting a wire to failure.
1.8 This test method covers the determination of high stress fatigue performance and ductility by reverse bending wire to failure.
1.9 This test method covers determination of propensity of a wire to develop or propagate, or both, surface cracks from being wound. This test is also known as the wrap-around bend test.
1.10 This test method covers the measurement of the diameter and roundness of single filament wire using a micrometer.
General Information
Relations
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:D6320–04
Standard Test Methods for
1
Single Filament Hose Reinforcing Wire Made from Steel
This standard is issued under the fixed designation D6320; 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 D4848 Terminology Related to Force, Deformation and
Related Properties of Textiles
1.1 These test methods cover testing of single filament steel
D6477 Terminology Relating to Tire Cord, Bead Wire,
wires that are used to reinforce hose products. By agreement,
Hose Reinforcing Wire, and Fabrics
these test methods may be applied to similar filaments used for
reinforcing other rubber products.
3. Terminology
1.2 These test methods describe test procedures only and do
3.1 Definitions:
not establish specifications or tolerances.
3.1.1 Fordefinitionsoftermsrelatingtotirecord,beadwire,
1.3 These test methods cover the determinations of the
hose wire, and tire cord fabrics, refer to Terminology D6477.
mechanical properties listed below:
3.1.1.1 The following terms are relevant to this standard:
Property Section
hose reinforcing wire, torsion resistance, yield strength.
Breaking force (strength) 7-13
Yield strength 7-13
3.1.2 For definitions of terms related to force and deforma-
Elongation 7-13
tion in textiles, refer to Terminology D4848.
Knot strength 14-20
3.1.2.1 The following terms are relevant to this standard:
Torsion resistance 21-27
Reverse bend 28-34
breaking force and elongation.
Wrap 35-41
3.1.3 For definitions of other terms related to textiles, refer
Diameter 42-48
to Terminology D123.
1.4 These test methods are written in SI units; the inch-
pound units which are provided are not necessarily exact 4. Summary of Test Method
equivalents of the SI units. Either system of units may be used
4.1 A summary of the directions prescribed for determina-
in these test methods. In the case of referee decisions, the SI
tion of specific properties of hose reinforcing wire is stated in
units will prevail.
theappropriatesectionsofthespecifictestmethodsthatfollow.
1.5 This standard does not purport to address all of the
5. Significance and Use
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro-
5.1 The procedures for the determination of properties of
priate safety and health practices and determine the applica-
single-filament hose reinforcing wire made from steel are
bility of regulatory limitations prior to use.
considered satisfactory for acceptance testing of commercial
shipments of this product because the procedures are the best
2. Referenced Documents
available and have been used extensively in the trade.
2
2.1 ASTM Standards:
5.1.1 In the case of a dispute arising from differences in
D76 Specification for Tensile Testing Machines for Textiles
reported test results when using these test methods for accep-
D123 Terminology Relating to Textiles
tance testing of commercial shipments, the purchaser and
D2969 Test Methods for Steel Tire Cords
supplier should conduct comparative tests to determine if there
is a statistical bias between their laboratories. Competent
statistical assistance is recommended for investigation of bias.
1
These test methods are under the jurisdiction of ASTM Committee D13 on
As a minimum, two parties should take a group of test
Textiles and are the direct responsibility of Subcommittee D13.19 on Tire Cord and
specimens which are as homogeneous as possible and which
Fabrics.
are from a lot of material of the type in question. The test
Current edition approved Oct. 1, 2004. Published October 2004. Originally
published as D6320–98. Last previous edition D6320–02. DOI: 10.1520/D6320-04.
specimens then should be randomly assigned in equal numbers
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
to each laboratory for testing.The average results from the two
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
laboratories should be compared by using an appropriate
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. statisticaltestandanacceptableprobabilitylevelchosenbythe
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1
---------------------- Page: 1 ----------------------
D6320–04
two parties before testing is begun. If a bias is found, either its maximum force required to fracture the wire shall not exceed
cause must be determined and corrected or the purchaser and 90 % nor be less than 10 % of the selected force measurement
supplier must agree to
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.