ASTM_F_765_-_93_2012e1.pdf

Designation:F76593(Reapproved 2012)1An American National StandardStandard Specification forWildcats,Ship Anchor Chain1This standard is issued under the fixed designation F765;the number immediately following the designation indicates the year of originaladoption or,in the case of revision,the year of last revision.Anumber in parentheses indicates the year of last reapproval.Asuperscriptepsilon()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.1NOTEReapproved with editorial change to Referenced Documents section in August 2012.1.Scope1.1 This specification covers wildcats as used in windlassesto haul in and pay out anchor chain on board ships.Anassociated chain stopper is used to secure the chain while theship is anchored,or the anchor is housed.1.2 Wildcats are of the five whelp type for use with stud linkanchor chain conforming to the American Bureau of ShippingGrades 1,2,and 3.Wildcat dimensions are provided for chainsin integral18-in.(3-mm)steps,ranging in size from34to 418in.(19 to 104 mm).Wildcat dimensions for chains in interme-diate116-in.(1.5-mm)steps are not provided,but wildcats inthese sizes are permitted within the scope of this specification.1.3 Wildcats are configured to pass detachable links ori-ented parallel or perpendicular to the wildcat shaft centerline.1.4 The values stated in inch-pound units are to be regardedas the standard.This specification is for use with anchor chainthat is measured in inch-pound units.2.Referenced Documents2.1 ASTM Standards:2A27/A27M Specification for Steel Castings,Carbon,forGeneral ApplicationA36/A36M Specification for Carbon Structural SteelA148/A148M Specification for Steel Castings,HighStrength,for Structural PurposesE10 Test Method for Brinell Hardness of Metallic Materials2.2 Other Documents:American Bureau of Shipping,Rules for Building andClassing Steel Vessels,Section,2.2.2 Anchor Chain3American Welding Society Structural Welding Code,Chap-ter D1.143.Classification3.1 The size of the wildcat is identified by the chain size.3.2 Wildcats are furnished in four types as follows:3.2.1 Type IFabricated from structural steel plate forflanges,hubs,whelps,and chain pockets,joined by electricwelding.Surface hardness is approximately 150 HB.3.2.2 Type IIFabricated from structural steel plate forflanges,hubs,and chain pockets;and high-strength steelcastings for whelps,joined by electric welding.Surface hard-ness is approximately 150 HB for flanges and hubs and 300 HBfor whelps.3.2.3 Type IIICast from medium-strength carbon steelcastings to provide a surface hardness of approximately 150HB.3.2.4 Type IVCast from high-strength steel castings toprovide a surface hardness of approximately 300 HB.4.Descriptions of Terms4.1 chain groovecircumferential groove at the chain cen-terline to provide clearance for links passing normal to thewildcat shaft centerline.4.2 chain pocketsrecesses between the flanges and whelpsinto which links with flat side orientated parallel to the wildcatshaft centerling lay.4.3 detachable linka“C”shaped link,closed by means ofa pair of closing pieces and a taper pin,and used to join anchorchain lengths and appendages into a continuous length aboardship.1This specification is under the jurisdiction of ASTM Committee F25 on Shipsand Marine Technology and is the direct responsibility of Subcommittee F25.03 onOutfitting and Deck Machinery.Current edition approved Aug.15,2012.Published October 2012.Originallyapproved in 1982.Last previous edition approved in 2006 as F765 93(2006).DOI:10.1520/F0765-93R12E01.2For 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 American Bureau of Shipping(ABS),ABS Plaza,16855Northchase Dr.,Houston,TX 77060.4Available from The American Welding Society(AWS),550 NW LeJeune Rd.,Miami,FL 33126.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 4.4 flangescircumferential rims on the outside of thewhelps,chain pockets,and chain groove.4.5 link gripthe inside dimension of a chain link repre-senting the effective length of a chain link in an assembledchain.Generally four times the nominal size of a stud linkanchor chain,see Fig.1.4.6 whelpsprotrusions on the inside of the flanges of thewildcat that resemble gear teeth and of such shape anddimensions so as to follow the path of the chain,as it enters andleaves the wildcat.Faces of protrusions are separated by thechain groove to permit links with the flat side normal to thewildcat shaft centerline to pass,but blocking links with the flatside oriented parallel to the wildcat shaft centerline.4.7 wildcata rotating member specially contoured to re-ceive assembled chain links and connecting links around thecircumference of the mem