1、Designation:A12113Standard Specification forMetallic-Coated Carbon Steel Barbed Wire1This standard is issued under the fixed designation A121;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 paren
2、theses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the Department of Defense.1.Scope1.1 This specification covers metallic-coated steel barbedwire,consisting of
3、a strand of two wires.1.2 The barbed wire is available with aluminum,zinc,andzinc-5%aluminum-mischmetal alloy coatings,with a numberof coating weights,in a number of different constructions(designs),and in two grades.Not all designs are available in allcoating types.1.3 The values stated in inch-pou
4、nd units are to be regardedas the standard.The values given in parentheses are forinformation only.1.4 The text of this specification references notes andfootnotes that provide explanatory information.These notesand footnotes(excluding those in tables)shall not be consid-ered as requirements of the
5、specification.2.Referenced Documents2.1 ASTM Standards:2A90/A90M Test Method for Weight Mass of Coating onIron and Steel Articles with Zinc or Zinc-Alloy CoatingsA428/A428M Test Method for Weight Mass of Coating onAluminum-Coated Iron or Steel ArticlesA641/A641M Specification for ZincCoated(Galvaniz
6、ed)Carbon Steel WireA700 Practices for Packaging,Marking,and Loading Meth-ods for Steel Products for ShipmentA809 Specification for Aluminum-Coated(Aluminized)Carbon Steel WireA856/A856M Specification for Zinc-5%Aluminum-Mischmetal Alloy-Coated Carbon Steel WireA902 Terminology Relating to Metallic
7、Coated Steel Prod-ucts2.2 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 Shipmentand Storage33.Terminology3.1 DefinitionsFor definitions of terms not specified i
8、nthis specification,refer to Terminology A902.4.Classification4.1 The barbed wire covered by this specification is classi-fied as described in this section.4.2 Design Number Numbers describing standard sizesand constructions,as listed in Table 1.4.3 Metallic Coating Type:4.3.1 Coating Type A Made fr
9、om aluminum-coated strandwire.See 6.3.(Only one coating weight for each wire size.)4.3.2 Coating Type Z Made from zinc-coated strand wire.See Table 2.4.3.3 Coating Type ZA Made from zinc-5%aluminum-mischmetal alloy(Zn-5AL-MM)coated strand wire.See Table3.4.4 Metallic Coating ClassThe specified amoun
10、t of coat-ing(coating weight(mass)on the strand wire.4.5 Grades:4.5.1 Standard Grade Barbs spaced on 4 or 5-in.(102 or127-mm)centers as indicated in Table 1.4.5.2 High-Security GradeBarbs spaced on 3-in.(76-mm)centers with Coating Type A,Z,or ZA only.NOTE1The design numbers are related to the charac
11、teristics of theconstruction of the barbed wire,with the number groups related,in order,to the steel wire gage of the strand wires,number of barb points,spacingof barbs,steel wire gage of the barbs,and a letter indicating the shape ofthe barbs.1This specification is under the jurisdiction of ASTM Co
12、mmittee A05 onMetallic-Coated Iron and Steel Products and is the direct responsibility ofSubcommittee A05.12 on Wire Specifications.Current edition approved April 1,2013.Published May 2013.Originallyapproved in 1928.Last previous edition approved in 2007 as A121-07.DOI:10.1520/A0121-13.2For referenc
13、ed 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 Standardization Documents Order Desk,DODSSP,Bldg.4,Section D,70
14、0 Robbins Ave.,Philadelphia,PA 19111-5098Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 5.Ordering Information5.1 Orders for material under this specification shall includethe following information,as necessary to describe the desiredpro
15、duct.5.1.1 Name of material(steel barbed wire),5.1.2 Quantity(number of spools and length of barbed wireon each,or total length)(see 7.5 for standard size of spools),5.1.3 Metallic coating type(see 4.3),5.1.4 Metallic coating class(for Types Z and ZA)(see Table2 or Table 3),5.1.5 Design Number(see T
16、able 1),5.1.6 For Coating Type A barbed wire,whether aluminumalloy barbs are required or prohibited(see 6.2.1).If not stated,the choice shall be at the manufacturers option,5.1.7 ASTM designation and year of issue,and5.1.8 Certification or test report,or both,if required.NOTE2Atypical ordering description is as follows:Steel barbed wire,20 spools of 80 rods each,Coating Type Z,Coating Class 3,DesignNumber 12-2-4-14R,to ASTM Specification A121-latest edition,withcertification.5.2 All spools of ba