1、Designation:A466/A466M07(Reapproved 2012)Standard Specification forWeldless Chain1This standard is issued under the fixed designation A466/A466M;the number immediately following the designation indicates the yearof original adoption or,in the case of revision,the year of last revision.A number in pa
2、rentheses indicates the year of last reapproval.A superscript epsilon()indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the U.S.Department of Defense.1.Scope*1.1 This specification covers weldless chain suitable forapplication
3、s where a light and flexible chain is required.Thematerial may be steel,brass,or bronze.1.2 Seven classes of chain are covered:1.2.1 Class SLSingle-loop chain.1.2.2 Class DLDouble-loop chain.1.2.3 Class SHSash chain.1.2.4 Class SFPlumbers chain.1.2.5 Class SJSingle-jack chain.1.2.6 Class DJDouble-ja
4、ck chain.1.2.7 Class RGRegister chain.1.3 The values stated in either SI units or in other units shallbe regarded separately as standard.The values stated in eachsystem may not be exact equivalents;therefore,each systemmust be used independently of the other,without combiningvalues in any way.2.Refe
5、renced Documents2.1 ASTM Standards:2A29/A29M Specification for General Requirements for SteelBars,Carbon and Alloy,Hot-WroughtA366/A366M Specification for Commercial Steel(CS)Sheet,Carbon,(0.15 Maximum Percent)Cold-Rolled(Withdrawn 2000)3A569/A569M SpecificationforSteel,Carbon(0.15Maximum,Percent),H
6、ot-Rolled Sheet and Strip Commer-cial(Withdrawn 2000)3B248 Specification for General Requirements for WroughtCopper and Copper-Alloy Plate,Sheet,Strip,and RolledBar3.Terminology3.1 Definitions of Terms Specific to This Standard:3.1.1 breaking force,minimum,nminimum force inpounds or newtons at which
7、 the chain,during manufacture,hasbeen found by representative testing to break when a constantlyincreasing force is applied in direct tension.3.1.1.1 DiscussionThis test is a manufacturers attributeacceptance test and shall not be used as criteria for service.3.1.2 lot,nfor the purpose of acceptance
8、 testing,a lot shallconsist of 3000 ft 1000 m or fraction,thereof,of the samegrade and size chain.If a continuous length of chain exceeds3000 ft,it shall also be considered a lot.3.1.3 working load limit(WLL),nmaximum combinedstatic and dynamic load in pounds or kilograms that shall beapplied in dir
9、ect tension to an undamaged straight length ofchain.4.Ordering Information4.1 It shall be the responsibility of the purchaser to specifyall requirements that are necessary for material ordered underthis specification.Such requirements to be considered include,but are not limited to,the following:4.1
10、.1 Product to conform to Specification A466/A466M andyear of issue,4.1.2 Class of chain,4.1.3 Material size or trade size of chain,4.1.4 Material of chain(steel,brass,or bronze),4.1.5 Quantity of chain in feet metres,4.1.6 Length of each piece,if required,4.1.7 Finish,if required,4.1.8 Certification
11、 of test(s),if required,and4.1.9 Acceptance of inspection by purchaser,if required.5.Materials and Manufacture5.1 The selection of the base material is left to the judgmentof the individual chain manufacturer provided that the chaincomplies with the requirements contained within this specifi-cation.
12、5.2 The methods utilized to produce the chain are left to thejudgment of the individual chain manufacturer provided thechain complies with the requirements contained within thisspecification.1This specification is under the jurisdiction of ASTM Committee A01 on Steel,Stainless Steel and Related Allo
13、ys and is the direct responsibility of SubcommitteeA01.27 on Steel Chain.Current edition approved Nov.1,2012.Published November 2012.Originallyapproved in 1962.Last previous edition approved in 2007 as A466/A466M 07.DOI:10.1520/A0466_A0466M-07R12.2For referenced ASTM standards,visit the ASTM website
14、,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.3The last approved version of this historical standard is referenced onwww.astm.org.*A Summary of Changes section appea
15、rs at the end of this standardCopyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 6.Dimensional Requirements6.1 The chain shall conform to the dimensional require-ments as specified in Tables 1-7.The tolerance is 67%fromthe specified nominal
16、dimensions for all chain classes exceptClass SF.Class SF has a maximum length criterion.The insidelength dimension can be measured either by individual link orby measuring the span of 100 links and dividing by 100.6.2 Material Diameter/ThicknessThe diameter or thick-ness of the material from which the chain is manufactured shallbe at least the dimension shown in Tables 1-7,subject to thenormal commercial tolerances listed in Specifications A29/A29M,A366/A366M,A569/A569M,and B248.Oversizedmateria
