1、Designation: A 824 01 (Reapproved 2007)Standard Specification forMetallic-Coated Steel Marcelled Tension Wire for Use WithChain Link Fence1This standard is issued under the fixed designation A 824; the number immediately following the designation indicates the year oforiginal adoption or, in the cas
2、e of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon (e) indicates an editorial change since the last revision or reapproval.1. Scope1.1 This specification covers 0.177 in. (4.50 mm) diametermetallic-coated carbon steel marcell
3、ed tension wire for usewith chain-link fence. The 0.177 in. (4.50 mm) diametermetallic-coated wire shall be produced in accordance withSpecification A 817. Three types of coatings are covered:1.1.1 Type IAluminum-coated (aluminized),1.1.2 Type IIZinc-coated (galvanized), and1.1.3 Type IIIZinc-5 % Al
4、uminum Mischmetal (Zn5Al-MM) alloy-coated.1.2 The values stated in inch-pound units are to be regardedas the standard. The values given in parentheses are forinformation only.2. Referenced Documents2.1 ASTM Standards:2A 700 Practices for Packaging, Marking, and LoadingMethods for Steel Products for
5、ShipmentA 817 Specification for Metallic-Coated Steel Wire forChain-Link Fence Fabric and Marcelled Tension WireA 902 Terminology Relating to Metallic Coated Steel Prod-ucts3. Terminology3.1 Definitions:3.1.1 For definitions of terms used in this specification, referto Terminology A 902.3.2 Definiti
6、ons of Terms Specific to This Standard: Descrip-tion of Term Specific to This Standard:3.2.1 marcellinga process whereby either a uniform helixor a series of waves is put in a wire to facilitate tensioning thewire when installed to support the top or bottom, or both, of thechain-link fabric (see 5.2
7、.1).4. Ordering Information4.1 Orders for metallic-coated steel tension wire shouldinclude the following information:4.1.1 Quantity (expressed in number of coils),4.1.2 Name of product,4.1.3 Type of coating (see 5.3),4.1.4 Class of coating if applicable (see 5.3.2 and 5.3.3),4.1.5 Packaging requirem
8、ents (see Section 14),4.1.6 Certification or test report, or both, if specified (seeSection 13), and4.1.7 ASTM designation and year of issue.NOTE 1A typical ordering description is as follows: 20 coils metallic-coated steel tension wire, Type II, Class 2, in 100-lb coils, to ASTMA 824 _ .5. Material
9、s and Manufacture5.1 The steel rod from which the wire is drawn shall bemanufactured by the open-hearth, electric-furnace, or basic-oxygen process.5.2 The 0.177 in. (4.50 mm) diameter wire shall be cold-drawn, metallic-coated at finished size to produce the specifiedmechanical properties per Specifi
10、cation A 817, then marcelledas specified in 5.2.1.5.2.1 Marcelling shall produce a helix or series of waves inthe wire with the offset distance from the wire axis to the wavepeaks or the helix not less than 0.125 in. (3.18 mm) (measuredto the center of the wire). The pitch (distance betweensuccessiv
11、e points on the waves or helix) shall be not more than12 in. (305 mm). Prior to making measurements of themarcelling, curvature from coiling shall be removed by theapplication of a 500-lbf (2225-N) tensile load. Maintain theload while measuring the offset distance and pitch. Measure-ments shall be m
12、ade on a section of wire with a length at leasttwo times the pitch length.5.2.1.1 Measurement of offset distance may be performedby placing a straightedge against two adjacent peaks orcorresponding points on a helix, measuring the distance to theinside of the wire 180 opposite, and dividing the valu
13、e by two.1This specification is under the jurisdiction of ASTM Committee F14 on Fencesand is the direct responsibility of Subcommittee F14.40 on Chain Link Fence andWire Accessories.Current edition approved July 1, 2007. Published July 2007. Originally approvedin 1984. Last previous edition approved
14、 in 2001 as A 824 - 01.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.1Copyright ASTM International, 100 Bar
15、r Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.5.3 The 0.177 in. (4.50 mm) diameter wire shall be fur-nished with one of three types of coating, per SpecificationA 817 as specified:5.3.1 Type IAluminum-Coated (Aluminized), with coatingweight specified.5.3.2 Type IIZinc-
16、Coated (Galvanized), in three classes ofcoating weights as specified.5.3.3 Type IIIZinc-5 % Aluminum-Mischmetal AlloyCoated (Zn-5Al-MM), in two classes of coating weights asspecified.6. Mechanical Properties6.1 The breaking strength shall meet the requirement ofSpecification A 817 for 0.177 in. (4.5
17、0 mm) diameter wire.7. Size and Tolerance7.1 The diameter shall meet the requirements of Specifica-tion A 817 for 0.177 in. (4.50 mm) diameter wire.NOTE 2It is recognized that the surfaces of heavy metallic coatings,particularly those produced by the hot-dip process, are not perfectlysmooth. If the
18、tolerance specified is rigidly applied to such irregularitiesthat are inherent to the product, unjustified rejections of wire that wouldactually be satisfactory for use would occur. Therefore, it is intended thatthis tolerance be used in gaging the uniform areas of the coated wire.8. Weight of Coati
19、ng8.1 The weight of coating shall meet the requirements ofSpecificationA 817 for the Type and Class of coating specified.9. Adherence of Coating9.1 The adherence of coating shall meet the requirements ofSpecification A 817 for 0.177 in. (4.50 mm) wire.10. Number of Tests and Retests10.1 Alot shall c
20、onsist of all of the coils of wire of the samesize, type, and class, and shall be offered for inspection at onetime.Awire sample of sufficient length, approximately 4 ft (1.2m), shall be cut from either end of each coil selected for testsdescribed in Sections 6, 8, and 9.10.2 The number of test spec
21、imens taken from the ends ofcoils during production to ensure compliance with Sections 6and 7 varies with the quality control procedures and themanufacturing facilities of each manufacturer, but is generallynot less than 10 % of the coils produced. For the purpose offinal product testing, one specim
22、en from every ten coils orfraction thereof in a lot shall be selected at random, or a totalof seven specimens, whichever is less.10.3 Should one or more of the wire specimens fail anyrequirement, the lot shall be subjected to retest. For retestpurposes the original lot shall be regrouped into 50 coi
23、l lots orfractions thereof. Each lot shall be tested for the property inwhich the original sample failed to comply at a frequency of10 % or more so that the total number of tests is at least doublethe original. Any lot that exhibits a failure shall be rejected. Ifduring retesting an additional quali
24、ty parameter is observed tobe defective, the lot of 50 is subject to rejection for that cause.The manufacturer may test each coil in the failed lot for theproperty in which failure occurred and reject only the noncon-forming coils.10.4 If any test specimen shows the presence of a weld or anobvious d
25、efect, it may be discarded and another specimensubstituted.10.5 Test specimens shall also be tested for compliance withmarcelling dimensions (see 5.2.1). For this purpose, thetest specimen shall contain at least three peaks and threevalleys.11. Inspection11.1 Unless otherwise specified in the contra
26、ct or purchaseorder, the producer is responsible for the performance of allinspection and test requirements of this specification. Except asotherwise specified in the contract or purchase order, theproducer may use his own or any other suitable facilities for theperformance of the inspection and tes
27、t requirements unlessdisapproved by the purchaser at the time the order is placed.The purchaser shall have the right to perform any of theinspections and tests prescribed in this specification when suchinspections and tests are deemed necessary to ensure that thematerial conforms to prescribed requi
28、rements.12. Rejection and Rehearing12.1 Material that fails to conform to the requirements ofthis specification may be rejected. Rejections should be re-ported to the producer or supplier promptly and in writing. Incase of dissatisfaction with the results of the test, the produceror supplier may mak
29、e claim for a rehearing.12.2 The material must be adequately protected and cor-rectly identified in order that the producer or supplier maymake a proper investigation.13. Certification13.1 When specified in the purchase order or contract, aproducers or suppliers certification shall be furnished to t
30、hepurchaser that the material was manufactured, sampled, tested,and inspected in accordance with this specification and hasbeen found to meet the requirements. When specified in thecontract or purchase order, a report of the test results shall befurnished.14. Packaging, Package Marking, and Loading1
31、4.1 Marking shall be by a tag securely attached to each coilof tension wire and shall show the identity of the producer,quantity, type of coating, class of coating (if applicable), andASTM designation.14.2 Packaging of the coils of wire shall be agreed uponbetween the producer and the purchaser. Thi
32、s agreement mayinclude coil dimensions and weight.14.3 Unless otherwise specified, the packaging, packagemarking, and loading shall be in accordance with PracticesA 700.15. Keywords15.1 chain link fence; marcelled wire; metallic coated steelwire; steel wire; wireA 824 01 (2007)2ASTM International ta
33、kes no position respecting the validity of any patent rights asserted in connection with any item mentionedin this standard. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the riskof infringement of such rights, are entirely their own r
34、esponsibility.This standard is subject to revision at any time by the responsible technical committee and must be reviewed every five years andif not revised, either reapproved or withdrawn. Your comments are invited either for revision of this standard or for additional standardsand should be addre
35、ssed to ASTM International Headquarters. Your comments will receive careful consideration at a meeting of theresponsible technical committee, which you may attend. If you feel that your comments have not received a fair hearing you shouldmake your views known to the ASTM Committee on Standards, at t
36、he address shown below.This standard is copyrighted by ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959,United States. Individual reprints (single or multiple copies) of this standard may be obtained by contacting ASTM at the aboveaddress or at 610-832-9585 (phone), 610-832-9555 (fax), or serviceastm.org (e-mail); or through the ASTM website(www.astm.org).A 824 01 (2007)3
