ASTM A392-2011a Standard Specification for Zinc-Coated Steel Chain-Link Fence Fabric《镀锌钢链节栅栏结构的标准规格》.pdf

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1、Designation: A392 11aStandard Specification forZinc-Coated Steel Chain-Link Fence Fabric1This standard is issued under the fixed designation A392; 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 () 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-p

3、ound units are to be regardedas standard. The values given in parentheses are mathematicalconversions to SI units that are provided for information onlyand are not considered standard.2. Referenced Documents2.1 ASTM Standards:2A90/A90M Test Method for Weight Mass of Coating onIron and Steel Articles

4、 with Zinc or Zinc-Alloy CoatingsA370 Test Methods and Definitions for Mechanical Testingof Steel ProductsA700 Practices for Packaging, Marking, and Loading Meth-ods for Steel Products for ShipmentA817 Specification for Metallic-Coated Steel Wire forChain-Link Fence Fabric and Marcelled Tension Wire

5、B6 Specification for Zinc2.2 Federal Standard:Fed. Std. No. 123 Marking for Shipments (Civil Agencies)32.3 Military Standards:MIL-STD-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 St

6、andard:3.1.1 chain-link fence fabrica fencing material made fromsteel wire helically wound and interwoven in such a manner asto provide 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

7、 or twistedselvages are permissible.3.1.2 diamond countthe number of diamond openingsfrom one edge of the fabric to the other. The diamond 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 knuckling

8、the type of selvage obtained by interlock-ing adjacent pairs of wire ends and then bending the wire endsback into a loop. The loop shall 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 tog

9、ether in a close helix of 112machine turns, which is equivalent to 3 full twists, and cuttingthe wire ends at an angle. The wire ends 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 Information

10、4.1 Orders for chain-link fence fabric purchased to thisspecification shall include the following information:4.1.1 Quantity (Section 14),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.

11、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 and 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 f

12、ootage of the rolls beforesampling, unless changed by contractual arrangement.NOTE 1A typical ordering description is as follows: 25 rolls, 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 A392 - XX.

13、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 June 1, 2011. Published June 2011. Originallyapproved in 1955. Last previous edition approved in 2011

14、as A392 - 11. DOI:10.1520/A0392-11A.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.3Available from Standardi

15、zation 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. Materials5.1 If zinc-coated before weaving, the wire from which thefabric is

16、 woven shall conform to all requirements of Specifi-cation A817 for Type II coating, in the class of coatingspecified (Class 4 or Class 5).5.2 If zinc-coated after weaving, the base metal shall besteel of such quality and purity that, when drawn to the size ofwire specified and coated with zinc afte

17、r fabrication, thefinished fencing shall be of uniform quality and have theproperties and characteristics as prescribed in this specifica-tion.5.3 Zinc for CoatingThe slab zinc, when used for thecoating, shall be any grade of zinc conforming to SpecificationB6.6. Weave6.1 The wire shall be woven thr

18、oughout in the form ofapproximately uniform square mesh, having parallel sides andhorizontal and vertical diagonals of approximately uniformdimensions. The top 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

19、 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 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 shal

20、l 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 shall be determined by measuring theminimum clear distance between the wires forming the parallelsides of the mesh, and determined as t

21、he 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 A817, with a permissiblevariation from the specified diameter of the coated wire of60.005 in. (60.13 mm).9. Height of Fabric9.1 Chain

22、-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 fabricshall be the overall dimension from ends of twists or knuckles.Permissible variation from the specified height shall be 61 in.(625

23、 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 otherwise specified by the purchaser, fabricswith2or218 in. (50 or 54 mm) mesh, in heights 60 in. (1520mm) and under shall be kn

24、uckled 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) in height are notrecommended because of consumer safety considerations.)10.2 The selvages of fabrics with meshes of

25、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 weight of zinc coating shall not be lessthan 1.2 oz/ft2(366 g/m2) of uncoated wire surface as deter-mined from the

26、 average of two or more specimens, and not lessthan 1.08 oz/ft2(330 g/m2) of uncoated wire surface for anyindividual specimen.11.1.2 Class 2The weight of zinc coating shall not be lessthan 2 oz/ft2(610 g/m2) of uncoated wire surface as determinedfrom the average of two or more specimens, and not les

27、s than1.8 oz/ft2(500 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 0.113-in. (2.87-mm)wire or with mesh sizes smaller than 2 inches.TABLE 1 Typical Diamond CountANOTE 1Oth

28、er diamond counts are permitted (see 6.2).NOTE 2 For fabric heights over 144 in., see 6.2.NOTE 3Variations to knuckled 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

29、1712 2012 2412 2712 3112 3412 41120.148 2 1012 1212 1312 1712 2012 2412 2712 3112 3412 41120.148 134 1112 1312 1512 1912 2312 2712 3112 3512 3912 47120.148 114 17 21 23 29 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 1112 1312 1512 1912

30、 2312 2712 3112 3512 3912 47120.120 114 17 21 23 29 35 41 46 52 58 700.120 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. (25.4 mm).A392 11a211.2 On fabric galvanized after weaving, the weigh

31、t 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 sections, but shall not include either twists or knuckles.11.3 The weight of coating shall be determined in accor-da

32、nce with Test Method A90/A90M.12. Breaking Strength12.1 Wire constituting the fabric shall meet the minimumbreaking strength listed in the Breaking Strength table ofSpecification A817 when tested in accordance with TestMethods and Definitions A370. Specimens to establish confor-mance to this require

33、ment shall 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 wir

34、e between the 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 fo

35、rm.The galvanized before-weaving fabric shall be woven usingproven industry procedures to ensure a smooth consistentsurface without penetrating to the substrate, except at theselvage cut ends, see Note 3.13.2 Excessive roughness, blisters, sal ammoniac spots,bruises, flaking, and white rust shall be

36、 noted. The GalvanizedAfter Weaving (GAW) process shall include the use of appro-priate apparatus for producing galvanized fabric so as toprevent excess material in the elbow joints that form thediamond mesh. The finished product shall exhibit free inde-pendent motion of overlapping wires that form

37、the diamondmesh when in a free or installed state of tension. Any of theabove described defects listed in 13.1 and 13.2 that willcompromise the function of the product shall provide a basisfor rejection.NOTE 3On fabric that is zinc-coated before weaving, rust formationson the cut ends of the wire at

38、 the fabric selvages 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 determine

39、d by unrolling aroll of 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 T

40、ests15.1 One roll from every 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 inspe

41、cted for weave(Section 6), size of mesh (Section 7), diamond count (6.2), wiresize (Section 8), height of fabric (Section 9), selvage (Section10) and length (Section 14).TABLE 2 Available Mesh Sizes and Zinc Coating WeightsASpecified Diameter of Coated Wire, in. (mm) Mesh Sizes with a Class 11.20 oz

42、/ft2(610) coating, in.Mesh Sizes with a Class 22.00 oz/ft2(366) coating, in.0.192 (4.88) 134 and 2 20.148 (3.76)12 ,58 ,1,114 ,134 , and 2 134 and 20.120 (3.05)38 ,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

43、product.TABLE 3 Breaking StrengthSpecified Diameter ofCoated Wire, in. (mm)Breaking Strength,min, lbf (N)0.192 (4.88) 2170 (9650)0.148 (3.76) 1290 (5740)0.135 (3.43) 1290 (5740)0.120 (3.05) 850 (3780)0.113 (2.87) 750 (3340)TABLE 4 Sizes of Wire and MeshANOTE 1 For fabrics heights over 144 in., see 9

44、.1.SpecifiedDiameterofCoatedWire, in.Size,CoatedWireGaugeSize ofMesh,in.BHeight of Fence 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 9 134 36 42 48 60 72 84 96 108 120 1440.148 9 114C36 42 48 60 72 84 96 108 120 1440.148 9 1 36 42 48 60 72 84

45、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 36 42 48 60 72 84 96 108 120 1440.120 11 114C36 42 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

46、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 equivalents.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 recomm

47、ended for swimming pools.DThese sizes are designed for security purposes.A392 11a315.3 On galvanized-after-weaving fabric, test specimenstaken from the outside end of the sample rolls shall be testedfor breaking strength (Section 12) and weight of zinc coating(Section 11).15.4 If any specimen tested

48、 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 by the samples may be rejected.16. Inspection16.1 Unless othe

49、rwise 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, 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