1、Designation: A111 99a (Reapproved 2014)Standard Specification forZinc-Coated (Galvanized) “Iron” Telephone and TelegraphLine Wire1This standard is issued under the fixed designation A111; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revis
2、ion, 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 “iron” wire with ClassA, ClassB, and Class C zinc coatings, suitable for us
3、e in telephone,telegraph, and signal transmission.1.2 The values stated in inch-pound units are to be regardedas standard. The values given in parentheses are for informa-tion only.2. Referenced Documents2.1 ASTM Standards:2A90/A90M Test Method for Weight Mass of Coating onIron and Steel Articles wi
4、th Zinc or Zinc-Alloy CoatingsA370 Test Methods and Definitions for Mechanical Testingof Steel ProductsA902 Terminology Relating to Metallic Coated Steel Prod-uctsB6 Specification for ZincB193 Test Method for Resistivity of Electrical ConductorMaterials3. Terminology3.1 DefinitionsFor definitions of
5、 terms used in thisspecification, see Terminology A902.4. Ordering Information4.1 Orders for wire under this specification shall include thefollowing:4.1.1 Size (in decimal fractions of an inch or (millimetre),4.1.2 Grade,4.1.3 Class of zinc coating (A, B, or C),4.1.4 Mandrel test for zinc coating (
6、as desired, mandrelsNos. 1 to 12 for Class A or as desired, mandrels Nos. 3 to 12for Classes B and C), and4.1.5 ASTM designation and year of issue.NOTE 1ExampleA typical order including the necessary informa-tion to guide the manufacturer, is as follows:5000 lb of 0.109-in. Grade BB wire, Class A co
7、ating, mandrel No. 3,ASTM Specification A111.5. Zinc for Coating5.1 The zinc used for the coating shall be any grade of zincconforming to Specification B6.6. Base Metal6.1 The base metal shall be made by any commercially-accepted steel-making process of such quality and purity that,when processed an
8、d zinc coated, the finished wire will have theproperties prescribed in this specification for its size and grade.7. Joints7.1 The wire shall be furnished in coils of one continuouslength. Welds made prior to the final wire drawing shall bepermitted.8. Sampling8.1 The inspector shall select at random
9、 during the visualexamination specified in Section 18, 1 sample coil from every10 coils in the first 100 coils of the lot, and 1 sample coil forevery additional 35 coils but not less than 3 coils from theentire lot. From each coil of galvanized wire thus selected, asample of suitable length shall be
10、 taken for the weight ofcoating, the mechanical and the electrical tests as specified inSections 914, inclusive.9. Weight of Coating9.1 The weight of zinc coating, in ounces per square foot or(grams per square metre) of uncoated wire surface, shall be notless than that specified in Table 1.9.2 Weigh
11、t of Coating TestThe zinc coating shall be testedfor weight by a stripping test in accordance with Test MethodA90/A90M.10. Adherence of Coating10.1 The zinc coating shall remain adherent when the wireis wrapped at a rate of not more than 15 turns per minute in a1This specification is under the juris
12、diction of ASTM Committee A05 onMetallic-Coated Iron and Steel Products and is the direct responsibility of Subcom-mittee A05.12 on Wire Specifications.Current edition approved Nov. 1, 2014. Published November 2014. Originallyapproved in 1926. Last previous edition approved in 2009 as A111 - 99a (20
13、09).DOI: 10.1520/A0111-99AR14.2For 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.Copyright ASTM International, 1
14、00 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States1close helix of at least two turns around a cylindrical mandrel ofthe diameter specified. The mandrel diameter shall be approxi-mately an even multiple of the diameter of the wire tested. Themandrel shall be specified
15、by the number corresponding to thisdiameter ratio. For example, mandrel No. 1 and mandrel No.12 designate mandrel diameters respectively one and twelvetimes the wire diameter.NOTE 2The coatings on all commercially available wire manufac-tured to meet this specification will pass a wrap test on mandr
16、el No. 12.Coatings are available for passing wrap tests on mandrels as small as No.1 for Class A, and No. 3 for Classes B and C. Coatings passing wrap testson mandrels of intermediate sizes may be specified.10.2 The zinc coating shall adhere firmly to the wire andshall be considered as meeting this
17、requirement if, due towrapping about the specified mandrel, it does not flake andnone of the coating can be removed from the wire by rubbingwith the bare fingers. Loosening or detachment during theadhesion test of superficial, small particles of zinc formed bymechanical polishing of the surface of z
18、inc-coated wire shallnot be considered cause for rejection.11. Breaking Strength11.1 The breaking strength of the galvanized wire shall notbe less than that specified in Table 2 when tested in accordancewith Test Methods and Definitions A370.12. Elongation12.1 The elongation of the galvanized wire s
19、hall be not lessthan 10 % in 10 in. (254 mm) when tested in accordance withTest Methods and Definitions A370. The elongation shall bedetermined as the permanent increase in length after failure ofa marked section of the wire originally 10 in. (254 mm) inlength.13. Ductility13.1 The base metal of the
20、 galvanized wire of each gradeshall not fracture when the wire is wrapped at a rate of notmore than 15 turns per minute in a close helix of at least twoturns around a cylindrical mandrel of a diameter equal to thenominal diameter of the wire tested.14. Resistivity14.1 The weight resistivity of the w
21、ire expressed in ohmpound per square mile (ohm gram per square metre) at 68F(20C) shall conform to the requirements specified in Table 3.14.2 Resistivity Test The resistivity shall be determined inaccordance with Test Method B193.15. Size and Permissible Variations15.1 SizeThe size of the galvanized
22、 wire shall be ex-pressed as the diameter of the wire in decimal fractions of aninch or (millimetre).15.2 Permissible VariationsThe permissible variations ofthe galvanized wire from the nominal diameter shall be asfollows:Nominal Diameter of Wire, in. (mm)Permissible Variations, plus or minus,in. (m
23、m)0.109 (2.77) and over0.083 (2.11)0.004 (0.10)0.003 (0.08)15.3 GagingThe wire of each coil selected for purpose oftest (Section 8) shall be gaged in three places; one near eachend of the coil and one approximately at the middle. A coilshall be rejected if the diameter, at any point, is not within t
24、helimits specified in 15.2.16. Workmanship, Finish, and Appearance16.1 The galvanized wire shall be free of splints, scales,inequalities, flaws, and other imperfections not consistent withgood commercial practice. The coating shall be continuous andreasonably uniform.17. Inspection17.1 The manufactu
25、rer shall afford the inspector represent-ing the purchaser all reasonable facilities, without charge, tosatisfy him that the material is being furnished in accordancewith this specification. All tests and inspection shall be made atthe place of manufacture, prior to shipment, and shall be soconducte
26、d as not to interfere unnecessarily with the operationof the works.18. Rejection18.1 The inspector shall visually examine the entire ship-ment of lot of coils for surface imperfections. If, after visualexamination, more than 3 % of the coils in the entire lot arefound defective, the entire lot shall
27、 be subject to rejection. Ifmore than 3 % of the samples selected in accordance withSection 8 fail to pass any of the tests specified in Sections 915, inclusive, the entire lot shall be subject to rejection. If notTABLE 1 Minimum Weights of Zinc CoatingNominal Diameterof Coated Wire,in. (mm)Minimum
28、Weight of Zinc Coating, oz/ft2(g m2)of Uncoated Wire SurfaceClass A Class B Class C0.109 (2.77) and over 0.80 (245) 1.60 (490) 2.40 (730)0.083 (2.11) 0.70 (215) 1.40 (425) 2.10 (640)TABLE 2 Breaking Strength RequirementsNominal Diameter ofCoated Wire,in. (mm)Size(BirminghamWire Gage)Breaking Strengt
29、h, min, lbf (N)Grade BB0.238 (6.05) 4 2 270 (10 100)0.203 (5.16) 6 1 650 (7 340)0.165 (4.19) 8 1 090 (4 850)0.148 (3.76) 9 880 (3 910)0.134 (3.40) 10 720 (3 200)0.120 (3.05) 11 575 (2 560)0.109 (2.77) 12 475 (2 110)0.083 (2.11) 14 275 (1 220)TABLE 3 Resistivity RequirementsClass of CoatingWeight Res
30、istivity, max, lb/mile2(g/m2)Grade BBA 6200 (1.092)B 6050 (1.062)C 5900 (1.033)A111 99a (2014)2more than 3 % of the samples fail, a second set of samples,consisting of two specimens from each of the coils from whichthe original nonconforming samples were taken, shall be cutand tested for the nonconf
31、orming properties. If any of thesesamples fail, the entire lot shall be subject to rejection.19. Packaging19.1 The finished wire shall be furnished in compact coilsreasonably symmetrical in shape. The diameter of the eye ofeach coil shall be not less than 17 in. (432 mm), nor more than24 in. (610 mm
32、).19.2 The weight of wire in each coil shall conform, withina variation of plus or minus 10 %, to the nominal valuesspecified in Table 4.19.3 Each coil shall be securely bound in four separateplaces, equally spaced, with at least two wrappings of galva-nized wire not smaller than 0.080 in. (2.0 mm)
33、in diameter. Asan alternative, coils may be securely bound in three separateplaces, equally spaced, with a zinc-coated steel strap. The steelcrimping seal used to fasten the strap shall be either zinc-coated or painted steel. For bundles with a nominal weight lessthan 100 lb (45.4 kg) the steel stra
34、p shall be not less than12 in.(12.7 mm) wide by 0.020 in. (0.51 mm) thick. For bundles witha nominal weight of 100 lb (45.4 kg) or more, the steel strapshall be not less than58 in. (15.9 mm) wide by 0.020 in. (0.51mm) thick, and each binder shall be looped around severalstrands of wire and then pass
35、ed around the coil and tightened.The outer end of each coil shall be bent back over the bindingwire or strap or else tucked into the coil and shall be identifiedby an appropriate tag to facilitate locating the end.20. Marking20.1 To each coil of wire shall be securely attached adurable tag showing t
36、he size, grade, class of coating, ASTMdesignation A111, and the name or mark of the manufacturer.21. Keywords21.1 iron productszinc-coated; steel wirezinc-coated;telephone/telegraph wireASTM International takes no position respecting the validity of any patent rights asserted in connection with any
37、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 technical c
38、ommittee 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
39、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 by ASTM International, 100 Barr Harbor Dr
40、ive, 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.
41、org). Permission rights to photocopy the standard may also be secured from the Copyright Clearance Center, 222Rosewood Drive, Danvers, MA 01923, Tel: (978) 646-2600; http:/ 4 Nominal Amount of Wire in Each CoilNominal Diameterof Coated Wire,in. (mm)Size(BirminghamWire Gage)ApproximateLength, ft (m)N
42、ominal Weightof Wire in EachCoil, lb (kg)0.238 (6.05) 4 1 320 (402) 200 (91)0.203 (5.16) 6 1 760 (536) 193 (88)0.165 (4.19) 8 2 640 (805) 191 (87)0.148 (3.76) 9 2 640 (805) 154 (70)0.134 (3.40) 10 2 640 (805) 126 (57)0.120 (3.05) 11 2 640 (805) 101 (46)0.109 (2.77) 12 2 640 (805) 83 (38)0.083 (2.11) 14 2 640 (805) 48 (22)A111 99a (2014)3
