1、Designation: A817 12 (Reapproved 2017)Standard Specification forMetallic-Coated Steel Wire for Chain-Link Fence Fabric andMarcelled Tension Wire1This standard is issued under the fixed designation A817; the number immediately following the designation indicates the year oforiginal adoption or, in th
2、e case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope1.1 This specification covers metallic-coated carbon steelwire used in the manufacture of
3、chain-link fence fabric andmarcelled tension wire. 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 % Aluminum-Mischmetal (Zn-5Al-MM) alloy-coated.1.2 The chain-link fabric woven from wire in this specifi-cati
4、on is covered separately by Specifications A491 for Type I,A392 for Type II, and F1345 for Type III.1.3 The marcelled tension wire manufactured from wire inthis specification is covered separately in Specifications A824and F1664.1.4 This specification does not cover the wire used forSpecification A3
5、92 when the chain-link fence producer appliesthe coating after the weaving process.1.5 The values stated in inch-pound units are to be regardedas the standard. The values given in parentheses are providedfor information only.1.6 This international standard was developed in accor-dance with internati
6、onally recognized principles on standard-ization established in the Decision on Principles for theDevelopment of International Standards, Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade (TBT) Committee.2. Referenced Documents2.1 ASTM Standards:2A90/A90M
7、Test Method for Weight Mass of Coating onIron and Steel Articles with Zinc or Zinc-Alloy CoatingsA370 Test Methods and Definitions for Mechanical Testingof Steel ProductsA392 Specification for Zinc-Coated Steel Chain-Link FenceFabricA428/A428M Test Method for Weight Mass of Coating onAluminum-Coated
8、 Iron or Steel ArticlesA491 Specification for Aluminum-Coated Steel Chain-LinkFence FabricA700 Guide for Packaging, Marking, and Loading Methodsfor Steel Products for ShipmentA824 Specification for Metallic-Coated Steel MarcelledTension Wire for Use With Chain Link FenceA902 Terminology Relating to
9、Metallic Coated Steel Prod-uctsB6 Specification for ZincB750 Specification for GALFANE29 Practice for Using Significant Digits in Test Data toDetermine Conformance with SpecificationsE47 Test Methods for Chemical Analysis of Zinc Die-Casting Alloys (Withdrawn 1997)3E536 Test Methods for Chemical Ana
10、lysis of Zinc and ZincAlloysF1345 Specification for Zinc-5 % Aluminum-MischmetalAlloy-Coated Steel Chain-Link Fence FabricF1664 Specification for Poly(Vinyl Chloride) (PVC) andOther Conforming Organic Polymer-Coated Steel TensionWire Used with Chain-Link Fence2.2 International Lead Zinc Research Org
11、anization:GF-1 Standard Practice for Determination of Cerium andLanthanum Compositions in GalfanAlloy (5 %Al-0.04 %La-0.04 % Ce Bal SHG Zn)43. Terminology3.1 DefinitionsFor definitions of terms used in thisspecification, see Terminology A902.1This specification is under the jurisdiction of ASTM Comm
12、ittee A05 onMetallic-Coated Iron and Steel Products and is the direct responsibility ofSubcommittee A05.12 on Wire Specifications.Current edition approved Sept. 1, 2017. Published September 2017. Originallyapproved in 1983. Last previous edition approved in 2012 as A817 -12. DOI:10.1520/A0817-12R17.
13、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.3The last approved version of this historical standard is ref
14、erenced onwww.astm.org.4Available from International Lead Zinc Research Organization, P.O. Box12036, Research Triangle Park, NC 27709.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United StatesThis international standard was developed in accordan
15、ce with internationally recognized principles on standardization established in the Decision on Principles for theDevelopment of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.14. Ordering Information4.1 Orders f
16、or metallic-coated steel wire for chain link fencefabric or marcelled tension wire shall include the followinginformation:4.1.1 Quantity.4.1.2 Name of product.4.1.3 Coated wire diameter.4.1.4 Type of coating (see 5.3).4.1.5 Class of coating, if applicable (see Table 1 or Table 2).4.1.6 Packaging req
17、uirements (see Section 14).4.1.7 Certification or test report, or both, if specified (seeSection 13).4.1.8 ASTM designation and year of issue.NOTE 1A typical ordering description is as follows: 80 000-lbsteelwire for chain-link fence fabric, 0.148-in. diameter, Type II, Class 2,in 500 to 600-lb catc
18、hweight coils on tubular carriers to ASTMA817 _.5. Materials 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 wire shall be cold-drawn, then metallic-coated atfinished size to produce the specifie
19、d mechanical properties.5.3 The wire shall be furnished with one of three types ofcoating, as specified:5.3.1 Type IAluminum-Coated (Aluminized), in one classof coating weight as specified in Table 1.5.3.2 Type IIZinc-Coated (Galvanized), with coatingweights as specified in Table 1.5.3.3 Type IIIZn-
20、5Al-MM Alloy Coated, with coatingweights as specified in Table 1.5.4 Type I coating shall be produced by a hot-dip process.Type II coating shall be produced by either a hot-dip or anelectrolytic process at the option of the producer. Type IIIcoating shall be produced by a hot-dip process.5.5 The ing
21、ot or pig aluminum used for Type I coating shallconform to the following impurity limits: copper, 0.10 % max,iron, 0.50 % max.5.6 Slab zinc if used for Type II coating shall be one of theappropriate grades that are described in Specification B6.5.7 The ingot used for Type III coating shall conform t
22、oSpecification B750.5.7.1 Method of AnalysisThe determination of chemicalcomposition shall be made in accordance with suitable chemi-cal methods (Test Methods E47 or E536), or other methods. Incase of dispute, the results secured by Test Methods E47 shallbe the basis of acceptance.5.7.2 A standard p
23、ractice for X-ray fluorescence spectrom-etry for determination of cerium and lanthanum in a Zn-5Al-MM alloy has been established by the International LeadZinc Research Organization (as Standard Practice GF-1).46. Mechanical Properties6.1 The metallic-coated wire for chain-link fence fabricshall meet
24、 the minimum breaking strength shown in Table 2when tested in accordance with Test Methods and DefinitionsA370.6.2 The metallic coated wire for marcelled tension wireshall have a diameter of 0.177 in. (4.50 mm) and a breakingstrength of 1950 lbf (8670 N) minimum and 3 200 lbf (14 230N) maximum when
25、tested in accordance with Test Methodsand Definitions A370.7. Size and Tolerance7.1 The diameter of the coated wire shall be determined asthe average of two readings taken at right angles to each other,and in accordance with Practice E29.7.2 The permissible variation from the specified diameter ofth
26、e coated wire shall be 60.005 in. (0.13 mm).NOTE 2It is recognized that the surfaces of heavy metallic coatings,particularly those produced by the hot-dip process, are not perfectlysmooth. If the tolerance specified is rigidly applied to such irregularitiesthat are inherent to the product, unjustifi
27、ed 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 Coating8.1 Coating weights for Types I, II, or III shall conform tothe requirements of Table 1.8.2 Coating We
28、ight Determination :TABLE 1 Minimum Weight of Metallic CoatingSpecified Diameter ofCoated Wire, in. (mm)Minimum Weight of Coating, oz/ft2(g m2) of Uncoated Wire SurfaceType I Type II, Class 3 Type II, Class 4 Type II, Class 5 Type III, Class 60 Type III, Class 1000.192 (4.88) 0.40 (122) 1.00 (305) 1
29、.20 (366) 2.00 (610) 0.60 (183) 1.00 (305)0.177 (4.50)A0.40 (122) 0.90 (275) 1.20 (366) 2.00 (610) 0.60 (183) 1.00 (305)0.148 (3.76) 0.40 (122) 0.90 (275) 1.20 (366) 2.00 (610) 0.60 (183) 1.00 (305)0.135 (3.43) 0.40 (122) 0.85 (259) 1.20 (366) 2.00 (610) 0.60 (183) 1.00 (305)0.120 (3.05) 0.35 (107)
30、0.85 (259) 1.20 (366) 2.00 (610) 0.60 (183) 1.00 (305)0.113 (2.87) 0.30 (92) 0.80 (244) 1.20 (366) 2.00 (610) 0.60 (183) 1.00 (305)ASize 177 in. is only used for tension wire, not chain-link fabric.TABLE 2 Breaking StrengthSpecified Diameter of CoatedWire, in. (mm)Breaking Strength, min,lbf (N)0.192
31、 (4.88) 2170 (9650)0.177 (4.50)A1950 (8670)0.148 (3.76) 1290 (5740)0.135 (3.43) 1075 (4780)0.120 (3.05) 850 (3780)0.113 (2.87) 750 (3340)ASize 177 in. is only used for tension wire, not chain-link fabric.A817 12 (2017)28.2.1 The coating weight for Type I shall be determined inaccordance with Test Me
32、thod A428/A428M.8.2.2 The coating weight for Types II or III shall bedetermined in accordance with Test Method A90/A90M. Indi-vidual results not more than 10 % below the minimum valuesspecified in Table 1 are allowed if the average of at least twosamples from the same coil are equal to or greater th
33、an theminimum value specified in Table 1. For example: Type II,class 4, weight of coat is 1.2 oz/ft2minimum, individual resultsshall be not less than 1.08 oz/ft2.9. Adherence of Coating9.1 The undeformed length of coated wire as represented bythe test specimens shall be capable of being wrapped in a
34、 closehelix at a rate not exceeding 15 turns/min around a cylindricalsteel mandrel having a diameter equal to three times the testspecimen without cracking or flaking the coating to such anextent that any coating metal can be removed by rubbing withthe bare fingers. Loosening or detachment during th
35、e adhesiontest of superficial, small particles of coating metal formed bymechanical polishing of the surface of the coated wire shall notbe considered cause for rejection.10. Number of Tests and Retests10.1 Alot shall consist of all of the coils of wire of the samesize, type, and class, and shall be
36、 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 specimens taken from the ends ofcoils during production to ensure compliance with Sec
37、tions 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 specimen from every ten coils orfraction thereof in a lot shall be selected at random,
38、or a totalof seven specimens, whichever is less.10.3 If one or more of the wire specimens fail anyrequirement, the lot shall be retested. For retest purposes theoriginal lot shall be regrouped into 50 coil lots or fractionthereof. Each lot shall be tested for the property in which theoriginal sample
39、 failed to comply at a frequency of 10 % ormore so that the total number of tests is at least double theoriginal. Any lot that exhibits a failure shall be rejected. Ifduring retesting an additional quality parameter is observed tobe defective, the lot of 50 is subject to rejection for that cause.The
40、 manufacturer is permitted to test each coil in the failed lotfor the property in which failure occurred and reject only thenonconforming coils.11. Inspection11.1 Unless otherwise specified in the contract or purchaseorder, the producer is responsible for the performance of allinspection and test re
41、quirements of this specification. Except asotherwise specified in the contract or purchase order, theproducer shall use his own or any other suitable facilities forthe performance of the inspection and test requirements unlessdisapproved by the purchaser at the time the order is placed.The purchaser
42、 shall have the right to perform any of theinspections and tests set forth in this specification when suchinspections and tests are deemed necessary to ensure that thematerial conforms to prescribed requirements.12. Rejection and Rehearing12.1 Material that fails to conform to the requirements ofthi
43、s specification shall be rejected. Rejections shall be reportedto the producer or supplier promptly and in writing. In case ofdissatisfaction with the results of the test, the producer orsupplier may make claim for a rehearing.12.2 The material must be adequately protected and cor-rectly identified
44、in order that the producer may make a properinvestigation.13. Certification13.1 When specified in the purchase order or contract, aproducers or suppliers certification shall be furnished to thepurchaser that the material was manufactured, sampled, tested,and inspected in accordance with this specifi
45、cation and hasbeen found to meet the requirements. When specified in thecontract or purchase order, a report of the test results shall befurnished.14. Packaging, Marking, and Loading14.1 Marking shall be by a tag securely attached to each coilof wire and shall show the identity of the producer, size
46、 of wire,type of coating, class of coating (if applicable), and ASTMdesignation.14.2 Packaging of the coils of wire shall be by agreementbetween the producer and the purchaser. This agreement mayinclude coil dimensions and weight.14.3 Unless otherwise specified, the packaging, marking,and loading sh
47、all be in accordance with Practices A700.15. Keywords15.1 chain-link fencing materials; fence fabric; fencingmaterial; metallic-coated steel wire; steel wire; tension wire;wireA817 12 (2017)3ASTM International takes no position respecting the validity of any patent rights asserted in connection with
48、 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 responsibility.This standard is subject to revision at any time by the responsible techni
49、cal 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 addressed 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 the address shown below.This standard is copyrighted
