ASTM A392-2007 Standard Specification for Zinc-Coated Steel Chain-Link Fence Fabric《镀锌钢链节栅栏结构的标准规范》.pdf

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1、Designation: A 392 07Standard Specification forZinc-Coated Steel Chain-Link Fence Fabric1This standard is issued under the fixed designation A 392; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revision. A number

2、 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 zinc-coated steel chain-linkfence fabric, zinc coated either before or after weaving.1.2 The values stated in inch

3、-pound units are to be regardedas the standard.2. Referenced Documents2.1 ASTM Standards:2A 90/A 90M Test Method for Weight Mass of Coating onIron and Steel Articles with Zinc or Zinc-Alloy CoatingsA 370 Test Methods and Definitions for Mechanical Testingof Steel ProductsA 700 Practices for Packagin

4、g, Marking, and LoadingMethods for Steel Products for ShipmentA 817 Specification for Metallic-Coated Steel Wire forChain-Link Fence Fabric and Marcelled Tension WireB6 Specification for Zinc2.2 Federal Standard:Fed. Std. No. 123 Marking for Shipments (Civil Agencies)32.3 Military Standards:MIL-STD-

5、129 Marking for Shipment and Storage3MIL-STD 163 Steel Mill Products, Preparation for Ship-ment and Storage33. Terminology3.1 Definitions of Terms Specific to This Standard:3.1.1 chain-link fence fabrica fencing material made fromsteel wire helically wound and interwoven in such a manner asto provid

6、e a continuous mesh without knots or ties except inthe form of knuckling or of twisting the ends of the wires toform the selvage of the fabric. Variations to knuckled or twistedselvages are permissible.3.1.2 diamond countthe number of diamond openingsfrom one edge of the fabric to the other. The dia

7、mond count ofa given fabric shall begin at the first completed diamond at oneedge and continue to the unfinished (12) or full opening at theother edge.3.1.3 knucklingthe type of selvage obtained by interlock-ing adjacent pairs of wire ends and then bending the wire endsback into a loop. The loop sha

8、ll be closed or nearly closed toa measurement less than the diameter of the wire.3.1.4 twistingthe type of selvage obtained by twistingadjacent pairs of wire ends together in a close helix of 112machine turns, which is equivalent to 3 full twists, and cuttingthe wire ends at an angle. The wire ends

9、beyond the twist shallbe at least14 in. 6.4 mm long. This type of selvage is not usedon fabric with a mesh size of less than 2 in. 50.8 mm.4. Ordering Information4.1 Orders for chain-link fence fabric purchased to thisspecification shall include the following information:4.1.1 Quantity (Section 14),

10、4.1.2 Zinc coated after weaving or before weaving (Section5),4.1.3 Size of mesh (Section 7),4.1.4 Size of wire (Section 8),4.1.5 Height of fabric (Section 9),4.1.6 Diamond count, if specified (Section 6),4.1.7 Type of selvage (Section 10),4.1.8 Class of coating (Section 11),4.1.9 ASTM designation an

11、d year of issue, and4.1.10 Certification if required (Section 17).4.2 All rolls of fencing accepted by the purchaser shall bebilled on the basis of the original footage of the rolls beforesampling, unless changed by contractual arrangement.NOTE 1A typical ordering description is as follows: 25 rolls

12、, 50 fteach, chain-link fence fabric, zinc coated after weaving, 2-in. mesh,0.148-in. wire, 60 in. high, knuckled both selvages, Class 2 coating toASTM A 392 - XX.5. Materials5.1 If zinc-coated before weaving, the wire from which thefabric is woven shall conform to all requirements of Specifi-cation

13、 A 817 for Type II coating, in the class of coatingspecified (Class 4 or Class 5).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. Publis

14、hed July 2007. Originally approvedin 1955. Last previous edition approved in 2006 as A 392 - 06.2For 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 Docume

15、nt Summary page onthe ASTM website.3Available from Standardization Documents Order Desk, Bldg. 4 Section D, 700Robbins Ave., Philadelphia, PA 19111-5094, Attn: NPODS.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.5.2 If zinc-coated

16、after weaving, the base metal shall besteel of such quality and purity that, when drawn to the size ofwire specified and coated with zinc after fabrication, thefinished fencing shall be of uniform quality and have theproperties and characteristics as prescribed in this specifica-tion.5.3 Zinc for Co

17、atingThe slab zinc, when used for thecoating, shall be any grade of zinc conforming to SpecificationB6.6. Weave6.1 The wire shall be woven throughout in the form ofapproximately uniform square mesh, having parallel sides andhorizontal and vertical diagonals of approximately uniformdimensions. The to

18、p and bottom of the fabric shall be knuckledor twisted as specified in Section 10.6.2 A typical diamond count for each standard height isshown in Table 1. Other diamond counts are permissibleprovided that they are consistent within a lot. The purchaserhas the option to specify the diamond count (see

19、 4.1.6).7. Size of Mesh7.1 The size of mesh shall be as indicated in Table 4.7.2 The permissible variation from the specified size ofmesh shall be 618 in. 3.2 mm for all mesh sizes larger than114 in. 31.75 mm, and 6116 in. 61.6 mm for all mesh sizes114 in. 31.75 mm and smaller.7.3 The size of mesh s

20、hall be determined by measuring theminimum clear distance between the wires forming the parallelsides of the mesh, and determined as the average of tworeadings taken at right angles to each other.8. Size of Wire8.1 Chain-link fabric shall be fabricated from wire diam-eters as listed in Specification

21、 A 817, with a permissiblevariation from the specified diameter of the coated wire of60.005 in. 60.13 mm.9. Height of Fabric9.1 Chain-link fabric shall be furnished in the standardheights shown in Table 4. Custom order fabric is available inheights to and including 20 ft. 6.10 m. The height of fabri

22、cshall be the overall dimension from ends of twists or knuckles.Permissible variation from the specified height shall be 61 in.625 mm for standard selvage on fabric with mesh sizes 1 in.25.4 mm and over 612 in. 613 mm for all fabric with meshsizes less than 1 in. 25.4 mm.10. Selvage10.1 Unless other

23、wise specified by the purchaser, fabricswith2or218 in. 50 or 54 mm mesh, in heights 60 in. 1520mm and under shall be knuckled at both selvages. Fabric 72in. 1830 mm high and over shall be knuckled at one selvageand twisted at the other. (WarningTwisted selvages forfence fabric under 72 in. 1830 mm i

24、n height are notrecommended because of consumer safety considerations.)10.2 The selvages of fabrics with meshes of less than 2 in.50 mm shall be knuckled.11. Weight of Zinc Coating11.1 The weight of zinc coating on the fabric may beordered in two coating weight classes as follows:11.1.1 Class 1The w

25、eight of zinc coating shall not be lessthan 1.2 oz/ft2366 g/m2 of uncoated wire surface as deter-mined from the average of two or more specimens, and not lessthan 1.08 oz/ft2330 g/m2 of uncoated wire surface for anyindividual specimen.11.1.2 Class 2The weight of zinc coating shall not be lessthan 2

26、oz/ft2610 g/m2 of uncoated wire surface as determinedfrom the average of two or more specimens, and not less than1.8 oz/ft2500 g/m2 of uncoated wire surface for any indi-vidual specimen.NOTE 2Fabric galvanized after fabrication is normally not producedwith a Class 2 coating on 0.120-in. 3.05-mm or 0

27、.113-in. 2.87-mmwire or with mesh sizes smaller than 2 inches.11.2 On fabric galvanized after weaving, the weight ofcoating shall be determined on one or more pieces of wireremoved from the fabric. These specimens may be of anylength over 12 in. 300 mm and shall include both bends andstraight sectio

28、ns, but shall not include either twists or knuckles.11.3 The weight of coating shall be determined in accor-dance with Test Method A 90/A 90M.TABLE 1 Typical Diamond CountANOTE 1Other diamond counts are permitted (see 6.2).NOTE 2 For fabric heights over 144 in., see 6.2.NOTE 3Variations to knuckled

29、or twisted selvage may affect diamond count (see 6.2).NominalDiameterCoatedWire, in.Size ofMesh,in.Height of Fence Fabric, in.36 42 48 60 72 84 96 108 120 1440.192 2 1012 1212 1312 1712 2012 2412 2712 3112 3412 41120.148 2 1012 1212 1312 1712 2012 2412 2712 3112 3412 41120.148 114 . . . . . . 23 29

30、35 41 46 52 58 700.148 1 20 23 27 33 39 45 53 61 67 790.120 2 1012 1212 1412 1712 2012 2412 . . . .0.120 134 . . . . . . 3112 3512 3912 47120.120 1 20 23 27 33 39 45 53 61 67 790.113 218 912 1112 1312 1612 1912 . . . . .ASee Appendix X1 for metric equivalents and Fig. 1 for mesh sizes less than 1 in

31、. 25.4 mm.A39207212. Breaking Strength12.1 Wire constituting the fabric shall meet the minimumbreaking strength listed in the Breaking Strength table ofSpecification A 817 when tested in accordance with TestMethods and Definitions A 370. Specimens to establish con-formance to this requirement shall

32、consist of individual picketsfrom a section of the fence fabric. The specimens shall be ofsufficient length so as to be firmly gripped in the testingmachine after straightening. The actual gage length (distancebetween jaws) of the specimen shall be limited to the unde-formed length of wire between t

33、he two adjacent straightenedbends.13. Workmanship13.1 Chain-link fence fabric shall be produced by methodsrecognized as good commercial practices. The zinc coating ongalvanized-after-weaving fabric shall be applied in a continu-ous process and shall not be applied to the fabric in roll form.13.2 Exc

34、essive roughness, blisters, sal ammoniac spots,bruises, and flaking shall be noted. These and other defects, ifpresent to any considerable extent, shall provide a basis forrejection.NOTE 3On fabric that is zinc-coated before weaving, rust formationson the cut ends of the wire at the fabric selvages

35、are inherent character-istics of this material and do not warrant rejection of the fabric.14. Standard Length of Rolls14.1 The standard length of roll shall be 50 ft 15.24 m 61 % except as otherwise agreed upon at the time of purchase.14.2 The length of roll shall be determined by unrolling aroll of

36、 fabric on a flat surface and exerting tension byappropriate means to remove all slack. The tension appliedshall not reduce the actual height of the fabric by more than116in./ft 5.3 mm/m of height or by more than12 in. 12.7 mm,whichever is less.15. Sampling and Number of Tests15.1 One roll from ever

37、y 50 rolls or fraction thereof in a lotshall be taken at random as a sample for test purposes. In nocase shall less than two samples be tested, except when the lotis less than 10 rolls, only one roll shall be selected for thesample.15.2 Sample rolls selected shall be inspected for weave(Section 6),

38、size of mesh (Section 7), diamond count (6.2), wiresize (Section 8), height of fabric (Section 9), selvage (Section10) and length (Section 14).15.3 On galvanized-after-weaving fabric, test specimenstaken from the outside end of the sample rolls shall be testedfor breaking strength (Section 12) and w

39、eight of zinc coating(Section 11).15.4 If any specimen tested fails to meet the requirements ofthis specification, the roll represented by the specimen shall berejected and two additional rolls shall be tested, both of whichshall meet the requirements in every respect; otherwise, the lotrepresented

40、by the samples may be rejected.16. Inspection16.1 Unless otherwise specified in the purchase order orcontract, the manufacturer is responsible for the performanceof all inspection and test requirements specified in this speci-fication. Except as otherwise specified in the purchase order orcontract,

41、the manufacturer may use his own or any othersuitable facilities for the performance of the inspection and testrequirements unless disapproved by the purchaser at the timethe order is placed. The purchaser shall have the right toperform any of the inspection and tests set forth in thisspecification

42、when such inspections and tests are deemednecessary to assure that the material conforms to prescribedrequirements.TABLE 2 Available Mesh Sizes and Zinc Coating WeightsASpecified Diameter of Coated Wire, in. mm Mesh Sizes with a Class 12.00 oz/ft2(610) coating, in.Mesh Sizes with a Class 21.20 oz/ft

43、2(366) coating, in.0.192 4.88 134 and 2 20.148 3.7612 ,58 ,1,114 ,134 , and 2 134 and 20.120 3.0538 ,12 ,58 ,1,114 ,134 , and 2 . . .0.113 2.87 218 .AMesh sizes of 114 in. or smaller are typically produced with Galvanized before Weave product.TABLE 3 Breaking StrengthSpecified Diameter ofCoated Wire

44、, in. mmBreaking Strength,min, lbf N0.192 4.88 2170 96500.148 3.76 1290 57400.135 3.43 1290 57400.120 3.05 850 37800.113 2.87 750 3340TABLE 4 Sizes of Wire and MeshANOTE 1 For fabrics heights over 144 in., see 9.1.SpecifiedDiameterofCoatedWire, in.Size,CoatedWireGaugeSize ofMesh,in.BHeight of Fence

45、Fabric, in.0.192 6 2 36 42 48 60 72 84 96 108 120 1440.148 9 2 36 42 48 60 72 84 96 108 120 1440.148 9 114C. . . . . . 23 29 35 41 46 52 58 700.148 9 1 36 42 48 60 72 84 96 108 120 1440.148 912 36 42 48 60 72 84 96 108 120 1440.120 11 2 36 42 48 60 72 84 . . . .0.120 11 134 . . . . . . 96 108 120 14

46、40.120 11 114C. . . . . . 48 60 72 84 96 108 120 1440.120 11 1 36 42 48 60 72 84 96 108 120 1440.120 1138D36 42 48 60 72 84 96 108 120 1440.120 1112D36 42 48 60 72 84 96 108 120 1440.120 1158 36 42 48 60 72 84 96 108 120 1440.113 1112 218 36 42 48 60 72 . . . . .ASee Appendix X1 for metric equivalen

47、ts.BSee Fig. 1 for mesh dimensions for58 in.,12 in., and38 in. fence fabric. Thesesizes are typically used for high security requirements.CThis mesh and smaller is recommended for swimming pools.DThese sizes are designed for security purposes.A39207317. Certification and Reports17.1 When requested b

48、y the purchaser in the contract ororder, a producers or suppliers certification that the materialwas manufactured, sampled, tested, and inspected in accor-dance with this specification and has been found to meet therequirements. When specified in the purchase order or contract,a report of the tests

49、results shall be furnished.18. Packaging, Marking, and Loading18.1 Each length of chain-link fence fabric shall be tightlyrolled and firmly tied. Each roll shall carry a tag showing theclass of coating, the specified wire size, the mesh size, thespecified length and height of fabric in the roll, ASTMDesignation A 392 and the name or mark of the manufacturer.18.2 Unless otherwise specified, packaging, marki