ASTM F765-93(2012)e1
(Specification)Standard Specification for Wildcats, Ship Anchor Chain
Standard Specification for Wildcats, Ship Anchor Chain
ABSTRACT
This specification covers wildcats as used in windlasses to haul in and pay out anchor chain on board ships. Wildcats shall be classified based on materials and manufacture. Wildcats shall be fabricated from structural steel plate, medium-strength carbon steel castings, or high-strength steel castings, joined by electric welding. Wildcats shall conform to specified dimensions, depending on chain size. Wildcats shall be tested to fit sample chain. Workmanship, finish, appearance, packaging, and making shall conform to the requirements of this specification.
SCOPE
1.1 This specification covers wildcats as used in windlasses to haul in and pay out anchor chain on board ships. An associated chain stopper is used to secure the chain while the ship is anchored, or the anchor is housed.
1.2 Wildcats are of the five whelp type for use with stud link anchor chain conforming to the American Bureau of Shipping Grades 1, 2, and 3. Wildcat dimensions are provided for chains in integral 1/8-in. (3-mm) steps, ranging in size from 3/4 to 41/8 in. (19 to 104 mm). Wildcat dimensions for chains in intermediate 1/16-in. (1.5-mm) steps are not provided, but wildcats in these sizes are permitted within the scope of this specification.
1.3 Wildcats are configured to pass detachable links oriented parallel or perpendicular to the wildcat shaft centerline.
1.4 The values stated in inch-pound units are to be regarded as the standard. This specification is for use with anchor chain that is measured in inch-pound units.
General Information
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Standards Content (Sample)
NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
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Designation:F765 −93 (Reapproved 2012) An American National Standard
Standard Specification for
Wildcats, Ship Anchor Chain
ThisstandardisissuedunderthefixeddesignationF765;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginal
adoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscript
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.
ε NOTE—Reapproved with editorial change to Referenced Documents section in August 2012.
1. Scope 2.2 Other Documents:
American Bureau of Shipping, Rules for Building and
1.1 This specification covers wildcats as used in windlasses
Classing Steel Vessels,Section, 2.2.2 Anchor Chain
to haul in and pay out anchor chain on board ships. An
American Welding Society Structural Welding Code,Chap-
associated chain stopper is used to secure the chain while the 4
ter D1.1
ship is anchored, or the anchor is housed.
3. Classification
1.2 Wildcatsareofthefivewhelptypeforusewithstudlink
anchor chain conforming to theAmerican Bureau of Shipping
3.1 The size of the wildcat is identified by the chain size.
Grades1,2,and3.Wildcatdimensionsareprovidedforchains
3.2 Wildcats are furnished in four types as follows:
1 3 1
in integral ⁄8-in. (3-mm) steps, ranging in size from ⁄4 to 4 ⁄8
3.2.1 Type I—Fabricated from structural steel plate for
in. (19 to 104 mm). Wildcat dimensions for chains in interme-
flanges, hubs, whelps, and chain pockets, joined by electric
diate ⁄16-in. (1.5-mm) steps are not provided, but wildcats in
welding. Surface hardness is approximately 150 HB.
these sizes are permitted within the scope of this specification.
3.2.2 Type II—Fabricated from structural steel plate for
flanges, hubs, and chain pockets; and high-strength steel
1.3 Wildcats are configured to pass detachable links ori-
castings for whelps, joined by electric welding. Surface hard-
ented parallel or perpendicular to the wildcat shaft centerline.
nessisapproximately150HBforflangesandhubsand300HB
1.4 The values stated in inch-pound units are to be regarded
for whelps.
as the standard. This specification is for use with anchor chain
3.2.3 Type III—Cast from medium-strength carbon steel
that is measured in inch-pound units.
castings to provide a surface hardness of approximately 150
HB.
2. Referenced Documents 3.2.4 Type IV—Cast from high-strength steel castings to
provide a surface hardness of approximately 300 HB.
2.1 ASTM Standards:
A27/A27MSpecification for Steel Castings, Carbon, for
4. Descriptions of Terms
General Application
4.1 chain groove—circumferential groove at the chain cen-
A36/A36MSpecification for Carbon Structural Steel
terline to provide clearance for links passing normal to the
A148/A148M Specification for Steel Castings, High
wildcat shaft centerline.
Strength, for Structural Purposes
E10Test Method for Brinell Hardness of Metallic Materials 4.2 chain pockets—recessesbetweentheflangesandwhelps
into which links with flat side orientated parallel to the wildcat
shaft centerling lay.
4.3 detachable link—a “C” shaped link, closed by means of
apairofclosingpiecesandataperpin,andusedtojoinanchor
This specification is under the jurisdiction ofASTM Committee F25 on Ships
chain lengths and appendages into a continuous length aboard
and Marine Technology and is the direct responsibility of Subcommittee F25.03 on
ship.
Outfitting and Deck Machinery.
Current edition approved Aug. 15, 2012. Published October 2012. Originally
approved in 1982. Last previous edition approved in 2006 as F765–93 (2006).
DOI: 10.1520/F0765-93R12E01.
2 3
For referenced ASTM standards, visit the ASTM website, www.astm.org, or Available from American Bureau of Shipping (ABS), ABS Plaza, 16855
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Northchase Dr., Houston, TX 77060.
Standards volume information, refer to the standard’s Document Summary page on Available from TheAmerican Welding Society (AWS), 550 NW LeJeune Rd.,
the ASTM website. Miami, FL 33126.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
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F765−93 (2012)
4.4 flanges—circumferential rims on the outside of the joined by electric welding in accordance withAWS, structural
whelps, chain pockets, and chain groove. welding code Chapter D1.1. Type I wildcats in sizes 2 in. and
larger shall be stress-relieved. Material for Type II wildcats
4.5 link grip—the inside dimension of a chain link repre-
shall conform to Specification A36/A36M for flanges and
senting the effective length of a chain link in an assembled
hubs, and chain pockets, and Specification A148/A148M for
chain. Generally four times the nominal size of a stud link
whelps, joined by electric welding in accordance with AWS,
anchor chain, see Fig. 1.
Structural Welding Code, Chapter D1.1, stress-relieved and
4.6 whelps—protrusions on the inside of the flanges of the
heat-treated. Material for Type III wildcats shall conform to
wildcat that resemble gear teeth and of such shape and
Specification A27/A27M, Grade 70-40, quenched and tem-
dimensionssoastofollowthepathofthechain,asitentersand
pered. Material for Type IV wildcats shall conform to Speci-
leaves the wildcat. Faces of protrusions are separated by the
fication A148/A148M, Grade 150-125, quenched and tem-
chain groove to permit links with the flat side normal to the
pered.
wildcat shaft centerline to pass, but blocking links with the flat
6.2 The manufacturer’s name or identification mark, chain
side oriented parallel to the wildcat shaft centerline.
size,andpatternordrawingnumbershallbecastorstampedon
4.7 wildcat—a rotating member specially contoured to re-
the wildcat, using minimum ⁄4-in. (19-mm) size characters.
ceive assembled chain links and connecting links around the
Themarkingshallnotappearonawearingsurfaceandshallbe
circumferenceofthememberandofsuitablestrengthtoimpart
visible on an assembled windlass.
motion to the chain when rotated.
7. Dimensions
5. Ordering Information
5.1 Ordersforwildcatsunderthisspecificationshallinclude
7.1 Wildcat must be fitted to the sample chain, and detach-
the following:
ablelink(seeSection9).PrincipaldimensionsofTypesIIIand
5.1.1 Quantity (number),
IV wildcats for chains in steps of ⁄8in. (3 mm) are shown for
5.1.2 Size (chain size),
information only in Table 1 and Table 2.
5.1.3 ASTM designation and date of issue,
7.2 Dimensions in Table 1 and Table 2 are developed in
5.1.4 Type (I, II, III, or IV),
accordance with the following (see also Fig. 2 and Fig. 3):
5.1.5 Size, grade, and type of chain,
7.2.1 Bottom of chain pockets are relieved to clear enlarge-
5.1.6 Availability of assembled chain and detachable link to
ments occurring at centers of chain links as manufactured.
be furnished by the purchaser for test (see Section 9),
7.2.2 Each face of the whelp is a partial frustrum of a cone
5.1.7 As-cast or machined dimensions for wildcat bore, hub
developed so that each link whose plane is parallel to the
width, and outside boss diameter, and
wildcat shaft centerline will have end play as noted in Table 1
5.1.8 Marking (shipping).
and Table 2. This end play provides clearance between
6. Materials and Manufacture
nonbearing side of whelp and the end of the next following
6.1 Material for Type I wildcats shall conform to Specifi- link, the centerline plane of which is parallel to the axis of
cationA36/A36Mforflanges,hubs,whelps,andchainpockets, shaft.
FIG. 1 Chain Wrap Test
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F765−93 (2012)
TABLE 1 Dimensions in Inches of Types III and IV Wildcats for Chains
Size of End Play
RR R R XA B O P S T U V R R
1 2 3 4 5
Chain of Link
3 3 3 3 1 5 15 21 13 3 3 3
⁄4 4.12 4.09 3.00 4.87 2 ⁄8 1 ⁄8 3 ⁄8 ⁄2 1 ⁄16 1 ⁄32 2 ⁄32 ⁄16 ⁄16 21 ⁄8 ⁄4
7 11 1 7 5 13 5 3 7 7 5 1 7
⁄8 4.80 4.77 3.50 5.68 2 ⁄16 1 ⁄2 3 ⁄8 ⁄8 1 ⁄32 1 ⁄8 3 ⁄32 ⁄8 ⁄32 2 ⁄16 1 ⁄2 ⁄8
5 3 3 17 13 1 1 5 3
1 5.49 5.43 4.00 6.49 3 1 ⁄8 4 ⁄8 ⁄4 1 ⁄32 1 ⁄16 3 ⁄2 1 ⁄4 2 ⁄8 1 ⁄4 1
1 1 7 7 3 27 1 31 1 9 1 1
1 ⁄8 6.18 6.12 4.62 7.31 3 ⁄4 1 ⁄8 4 ⁄8 ⁄4 1 ⁄32 2 ⁄8 3 ⁄32 1 ⁄8 ⁄32 32 ⁄16 1 ⁄16
1 1 3 7 3 7 7 1 5 5 1 1
1 ⁄4 6.87 6.81 5.12 8.12 3 ⁄2 25 ⁄8 ⁄8 2 ⁄32 2 ⁄16 4 ⁄16 1 ⁄4 ⁄16 3 ⁄16 2 ⁄2 1 ⁄8
3 3 1 7 7 9 23 7 3 11 5 5 1
1 ⁄8 7.56 7.50 5.62 8.93 3 ⁄4 2 ⁄8 5 ⁄8 ⁄8 2 ⁄32 2 ⁄32 4 ⁄8 1 ⁄8 ⁄32 3 ⁄8 2 ⁄8 1 ⁄8
1 1 1 3 17 1 3 1 3 1
1 ⁄2 8.24 8.18 6.19 9.74 4 ⁄16 2 ⁄4 6 ⁄8 12 ⁄32 3 ⁄16 5 ⁄8 1 ⁄2 ⁄8 43 1 ⁄8
5 3 1 7 1 7 3 27 5 13 5 1 3
1 ⁄8 8.93 8.87 6.75 10.55 4 ⁄8 2 ⁄2 6 ⁄8 1 ⁄8 2 ⁄8 3 ⁄8 5 ⁄32 1 ⁄8 ⁄32 4 ⁄16 3 ⁄4 1 ⁄16
3 11 3 3 1 1 5 1 3 7 5 9 1
1 ⁄4 9.63 9.57 7.31 11.37 4 ⁄16 2 ⁄4 7 ⁄8 1 ⁄8 3 ⁄32 3 ⁄8 6 ⁄4 1 ⁄4 ⁄16 4 ⁄8 3 ⁄16 1 ⁄4
7 7 7 1 1 29 23 7 15 15 13 5
1 ⁄8 10.31 10.25 7.87 12.18 5 2 ⁄8 7 ⁄8 1 ⁄4 3 ⁄4 3 ⁄32 6 ⁄32 1 ⁄8 ⁄32 4 ⁄16 3 ⁄16 1 ⁄16
1 3 1 7 5 1 1 1 7 3
2 10.99 10.93 8.37 12.99 5 ⁄4 38 ⁄8 1 ⁄4 3 ⁄16 4 ⁄32 7 ⁄8 2 ⁄2 5 ⁄4 3 ⁄8 1 ⁄8
1 9 1 7 3 19 15 5 1 17 5 1 7
2 ⁄8 11.68 11.62 8.87 13.80 5 ⁄16 3 ⁄8 8 ⁄8 1 ⁄8 3 ⁄32 4 ⁄32 7 ⁄8 2 ⁄8 ⁄32 5 ⁄8 4 ⁄4 1 ⁄16
1 7 3 1 3 29 3 31 1 9 15 5 1
2 ⁄4 12.37 12.31 9.50 14.62 5 ⁄8 3 ⁄8 9 ⁄4 1 ⁄8 3 ⁄32 4 ⁄4 7 ⁄32 2 ⁄4 ⁄16 5 ⁄16 4 ⁄8 1 ⁄2
3 3 1 3 1 1 1 7 3 19 1 11 17
2 ⁄8 13.05 12.99 10.00 15.42 6 ⁄16 3 ⁄2 9 ⁄4 1 ⁄2 4 ⁄8 5 ⁄16 8 ⁄16 2 ⁄8 ⁄32 6 ⁄4 4 ⁄16 1 ⁄32
1 1 5 1 1 7 3 15 1 5 5 1 9
2 ⁄2 13.74 13.68 10.62 16.24 6 ⁄2 3 ⁄8 10 ⁄4 1 ⁄2 4 ⁄16 5 ⁄8
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