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UDC 672.6:629.123
Ref. No. : ISO/R 170 -1960 (E)
B
IS0
I NT ER N AT1 O NA L
ORGAN I2 AT1 ON FOR STA N DA RD I Z AT I O N
I SO R ECO M M EN DATI O N
R 170
SHIPBUILDING DETAILS
ANCHOR CHAINS, STUD LINKS
(COMMON LINKS, ENLARGED LINKS, END LINKS AND JOINING SHACKLES)
1st EDITION
December 1960
O
COPYRIGHT RESERVED
The copyr .,.A a IS0 Recommendations and IS0 ,.andards belongs
to IS0 Member Bodies. Reproduction of these documents, in any
country, may be authorized therefore only by the national standards
organization of that country, being a member of ISO.
For each individual country the only valid standard is the national standard of that country.
Printed in Switzerland
Also issued in French and Russian. Copies to be obtained through the national standards organizations,
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BRIEF HISTORY
The IS0 Recommendation R 170, Anchor Chains, Stud Links (Common Links, Enlarged
Links, End Links and Joining Shackles), was drawn up by Technical Committee ISO/TC 8,
Shipbuilding Details, the Secretariat of which is held by the Stitchting Nederlands Normalisatie-
instituut ("1).
A draft proposal was drawn up for the standardization of details of anchor chains, stud
links, based on studies of former International Federation of the National Standardizing Asso-
ciations (ISA).
At its third meeting, held in Genoa, in 1956, the Technical Committee decided to accept
&is proposal, subject only to one modification concerning the dimension C of the end link.
The draft so revised was submitted by correspondence to the members of the Technical Com-
mittee. As no objections were received within the given time limit, the draft proposal was
adopted as a draft IS0 Recommendation.
On 22 May 1959, the Draft IS0 Recommendation (No. 285) was distributed to all the
IS0 Member Bodies and was approved by the following Member Bodies:
Belgium Israel Romania
Burma Italy Spain
Chile Japan Sweden
Switzerland
Finland Netherlands
Germany Poland Turkey
Greece Portugal United Kingdom
One Member Body opposed the approval of the Draft: U.S.S.R.
The Draft IS0 Recommendation was then submitted by correspondence to the IS0
Council, which decided, in December 1960, to accept it as an IS0 RECOMMENDATION.
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ISO/R 170 - 1960 (E)
r
IS0 Recommendation R 170 D ece m be r 1 960
SHIPBUILDING DETAILS
ANCHOR CHAINS, STUD LINKS
(COMMON LINKS, ENLARGED LINKS, END LINKS AND JOINING SHACKLES)
1. GENERAL REMARKS
1.1 Shape and dimensions
The recommended shape and dimensions for anchor chains, stud links, are specified in the
following sections:
Common link . section 2, page 4,
Enlarged link . section 3, page 6,
End link . section 4, page 8,
Joining shackle with shackle pin . section 5, page 10.
1.1.1 All links and shackles should be of uniform shape and the inside radii of common
and enlarged links should be sufficient to allow each link to bed properly and work
freely. The inside radius of end links should be equal to half the inside width and
their sides should be parallel.
1.1.2 All dimensions specified in this IS0 Recommendation are after the cables and shackles
have been subjected to the statutory proof loads.
1.2 Tolerance
The allowable manufacturing tolerance for the dimensions B, B, and C is rt 2 per cent.
1.3 Material
The quality of the material used for the manufacture of the links and the joining shackle
should not be inferior in any respect to that of the material used for the manufacture of the
other assembling parts forming the anchor cable.
The design, material and tests of the complete anchor cables are subject to the legal requi-
rements of the countries concerned and of the recognized approving authorities.
1.4 References
For links of other types, see
IS0 Recommendation R 39, Anchor Chains - Lugless Joining Shackles, Kenter Type,
and
IS0 Recommendation R 40, Anchor Chains - Studless Links.
I
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ISO/R 170 - 19wI (t)
2. COMMONLINK
A = nominal dimension of common link = d
= diameter of material of common link
d
2 values: d’ = millimetre value of d
d” = inch value of d, transposed
into rounded off millimetre
value
d’ + d”
6 =6-
2
d’ + d”
C = 3.6 ___
2
Example for A = 20.5 mm or 18he in:
20S -k 20’6
= 123 mm (rounded off)
6 =6
2
6, = 123 - 2 x 20.5 = 82mm
O
20S 20’6
C = 3.6 = 74 mm (rounded off)
L
d
C
6 6,
A
d’ d”
mm
mm mm mm
mm
66 44 40
11 11.1
12.7 76 51 45
12.5
12.5
57 52
14.3 86
14.5
64 57
15.9 96
J 16
105 70 63
17.5 17.5
-’ 17.5
76 69
19.1 114 O
19 19
20.6 123 82 74
20.5
20.5
89 80
22.2 133
22
22
95 86
24 23.8 143
24
25.4 153 102 92
25.5
25.5
97
27.0 162 108
27
27
114 103
28.6 171
28.5
28.5
121 108
30.2 181
30
30
115
191 127
31.8
32 32
119
199 133
33 33.3
33
126
210 140
35 34.9
35
132
146
36.5 220
37
37
137
228 152
38 38.1
38
159 143
39.7 239
40
40
148
165
41.3 247
41
41
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I
ISO/R 170 - 1960 (E)
2.1 Dimensions (continued)
d
A B C
d' d"
mm
mm in mm mm mm mm
~
43 43 42.9 258 172 155
1 "I16
44.5 266 178
44 44 159
1 31~
46 46.0 276 184 166
46
1 "Il6
48 48 47.6 287 191 1 72
1 7i8
49 49 49.2 295 197 177
1 "Il6
51 2 51 50.8 305 203 183
52.4 313 188
52 52 209
2 'Il6
54.0 324 216 194
54 54
2 lI8
55.6 335 223 201
56 56
2 Y16
57 57.2 343 229 206
57
2 'I4
59 58.7 353 23 5 212
59
2 61113
60.3 36 1 24 1 217
60 60
2 3ie
61.9 372 248 223
62 62
2 'Il6
63.5 382 254 230
64 64
2 '12
65 65 65.1 390 260 234
2 9/16
67 66.7 401 267 24 1
67
2 78
68 68 68.3 409 273 245
2 ''116
69.9 420 252
70 70 280
2 Y4
71.4 427 285 256
71 71
2 l3Il6
73 73 73.0 438 292 263
2 7i8
75 75 74.6 449 299 269
2 ''Il6
76 76 76.2 457 305 274
3
77.8 467
78 78 311 280
3 Y16
80 79.4 478 318 287
80
3 Y8
82 82 82.6 494 330 296
3 'I4
85 85.7 512 342 307
85
3 Ye
88 88 87.3 526 350 316
3 'Il6
325
90 90 90.5 542 362
3 9116
92.1 552 368 331
92 92
3 "8
95.3 571 38 1 343
95 95
3
98.4 589 393 354
98 98
3 7i8
360
100 100 100.0 600 400
3 '"16
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3. ENLARGED LINK
3.1 Dimensions
A = nominal dimension of enlarged link = d
d = diameter of material of common link
2 values: d' = millimetre value of d
d" = inch value- of d,-transposed limetre
into rounded ott mil
value
of enlarged link
d, = diameter of material
d' + d"
= 1.1 -
2
d' + d"
B = 6.5 -
2
a Bl = B -2dl
d' 4- d"
c =4- 2
or 18/1a in :
Example for A = 20.5 mm
20.5 + 20.6 - -
22.5 mm (rounded
dl = 1 .I 2
I I
20.5
20'6 = 134 mm (rounded off)
B = 6.5 2
B, = 134 - 2 x 22.5 = 89 mm
20*5 20'6 = 82 mm (rounded off)
c =4 2
I
d (common link) B Bl C
A dl
d' 1 d"
mm j in mm mm mnlmmimm(mm
I l I 1 1
72 48 44
11.1 12
11
11 'Il6
50
54
14 82
12.7
12.5
12.5 '12
58
62
16 94
9
14.3
14.5
14.5
Ila
64
17.5 104 69
15.9
16
16 VS
70
17.5 19 114 76
17.5
17.5
124 82 76
19.1 21
19
19 v4
82
89
22.5 134
ia
20.6
20.5
20.5 Ila
88
24.5 144 95
22.2
22
22 'IS
96
26.5 155 102
23.8
24
24
'"'6
102
109
28 165
25.4
1 25.5
25.5
176 117 108
27.0 29.5
27
27 1 llla
114
124
31 186
28.6
28.5
28.5 1 'Is
120
33 196 130
30.2
30
30 1 "16
128
137
35 207
31.8
32
32 1 l14
133
33.3 36 215 143
1 33
33
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ISO/R 170 - 1980 (E)
3.1 Dimensions (continued)
d
...