ASTM_A_111_-_99a_2014.pdf

Designation:A11199a(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 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“iron”wire with ClassA,ClassB,and Class C zinc coatings,suitable for use 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 with 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 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(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.NOTE1ExampleA 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 coating,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 and 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 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 taken for the weight ofcoating,the mechanical and the electrical tests as specified inSections 9 14,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 Weight 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 jurisdiction 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(2009).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,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 close 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 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.NOTE2The coatings on all commercially available wire manufac-tured to meet this specification will pass a wrap test on mandrel 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 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 su