Product family

Anchor chain

Maxplus manufactures stud link and open link anchor chain for ship anchoring, mooring, and offshore work. Chain is produced to the shapes, proportions, and tolerances of ISO 1704 and offered in the U1, U2, and U3 grades that classification societies recognize.

At a glance

Standard: ISO 1704
Grades: U1, U2, U3 (CM490 / CM690)
Diameter band: 12.5 mm to 130 mm (catalogue table)
Shot lengths: 25 m and 27.5 m

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Close view of correctly structured stud-link anchor chain — Facility imagery illustrates production context and is not specification evidence.

Decision criteria

Standards and selection

Choose stud link or open link geometry, then grade (U1, U2, or U3), diameter, and the joining accessories needed for a complete cable.

ISO 1704: ISO 1704 governs the geometry and tolerances of stud-link anchor chain.
U1 / U2 / U3: Strength grades U1, U2, and U3 with rising minimum breaking load. Catalogue tables list Grade 2 and Grade 3 proof and breaking loads for stud link.
Steel grades: Steel grades commonly CM490 and CM690. Diameters from roughly 12.5 mm upward in the detailed stud-link table.
Class societies: Certifiable to ABS, BV, DNV, LR, RINA, NK, KR, RS, and CCS. Named society certificates are available on order.

Range

Products in this family

Flagship detail pages link where catalogue data is approved. Quote with the line, size, and standard you need.

Product lines in Anchor chain
Product line	Summary
Stud link anchor chain	Stud-link geometry to ISO 1704 proportions for ship anchoring and mooring.
Open link (studless) chain	Studless open-link chain for buoy, mooring, and related cable work.
Joining and end shackles	Kenter-type joining shackles, end shackles, and related connection hardware.
Swivels and enlarged links	Swivels, swivel pieces, enlarged links, and end links to complete the cable.
Anchors	Anchors offered to make up a complete anchoring system with the chain.

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Specifications

Verified values only

Full diameter tables from the approved Maxplus anchor-chain catalogue PDF. Grade 1 (U1) stud-link loads remain on request.

Source: maxplus-anchor-chain-catalogue-2024.pdf page 7 (printed pages 09 and 10). Grade 1 (U1) stud-link loads remain on request.
Diameter (mm)	G2 proof (kN)	G2 break (kN)	G3 proof (kN)	G3 break (kN)	Weight (kg/27.5 m)
12.5	66	92	92	132	94
14	82	116	116	165	117
16	107	150	150	216	158
17.5	127	179	179	256	194
19	150	211	211	301	236
20.5	175	244	244	349	269
22	200	280	280	401	322
24	237	332	332	476	370
26	278	389	389	556	431
28	321	449	449	642	496
30	368	514	514	735	564
32	417	583	583	833	635
34	468	655	655	937	712
36	523	732	732	1050	800
38	581	812	812	1160	887
40	640	896	895	1280	1032
42	703	981	981	1400	1084
44	769	1080	1080	1540	1197
46	837	1170	1170	1680	1310
48	908	1270	1270	1810	1438
50	981	1370	1370	1960	1546
52	1060	1480	1480	2110	1661
54	1140	1590	1590	2270	1791
56	1220	1710	1710	2430	1926
58	1290	1810	1810	2600	2086
60	1380	1940	1940	2770	2249
62	1470	2060	2060	2940	2361
64	1560	2190	2190	3130	2516
66	1660	2310	2310	3300	2676
68	1750	2450	2450	3500	2885
70	1840	2580	2580	3690	3010
73	1990	2790	2790	3990	3274
76	2150	3010	3010	4300	3548
78	2260	3160	3160	4500	3737
81	2410	3380	3380	4820	4030
84	2580	3610	3610	5160	4334
87	2750	3850	3850	5500	4650
90	2920	4090	4090	5840	4976
92	3040	4260	4260	6080	5199
95	3230	4510	4510	6440	5544
97	3340	4680	4680	6690	5780
100	3530	4940	4940	7060	6143
102	3660	5120	5120	7320	6398
105	3850	5390	5390	7700	6773
107	3980	5570	5570	7960	7033
111	4250	5940	5940	8480	7569
114	4440	6230	6230	8890	7983
117	4650	6510	6510	9300	8409
120	4850	6810	6810	9720	8863
122	5000	7000	7000	9990	9143
124	5140	7200	7200	10280	9598
127	5350	7490	7490	10710	9908
130	5570	7800	7800	11140	10382

Source: maxplus-anchor-chain-catalogue-2024.pdf pages 12 and 13. Null grade cells are on request where the PDF omits a column.
Diameter (mm)	G1 proof (kN)	G1 break (kN)	G2 proof (kN)	G2 break (kN)	G3 proof (kN)	G3 break (kN)	Weight (kg/27.5 m)
6	7	13	9	19	on request	on request	20
7	9	18	13	25	on request	on request	27
8	12	24	19	33	on request	on request	35
9	15	30	21	42	on request	on request	45
10	13	37	26	52	on request	on request	55
11	23	45	31	62	on request	on request	67
12.5	29	58	41	83	on request	on request	86
14	35	70	51	102	on request	on request	108
16	47	95	66	132	92	185	141
17.5	56	113	79	158	111	221	168
19	66	134	94	187	130	261	199
20.5	77	156	109	217	152	303	231
22	89	179	125	251	175	349	266
24	106	213	150	299	208	416	317
26	124	250	175	351	244	488	372
28	144	290	204	407	283	566	431
30	166	333	234	468	325	650	495
32	188	379	266	531	370	739	563
34	213	428	300	600	417	835	636
36	239	480	336	672	468	936	712
38	266	534	374	749	521	1043	794
40	294	592	415	829	578	1155	879
42	325	653	458	915	637	1274	970
44	356	716	503	1000	699	1398	1064
46	389	783	549	1098	764	1528	1163
48	424	853	598	1196	832	1664	1266
50	460	926	649	1294	903	1805	1374
52	on request	on request	697	1394	972	1945	1486
54	on request	on request	748	1497	1044	2089	1603
56	on request	on request	802	1603	1119	2237	1724
58	on request	on request	856	1713	1195	2390	1849
60	on request	on request	913	1826	1274	2547	1979
62	on request	on request	971	1941	1354	2709	2113
64	on request	on request	1030	2060	1437	2875	2251
66	on request	on request	1091	2182	1522	3044	2394
68	on request	on request	1153	2307	1609	3218	2542
70	on request	on request	1217	2434	1698	3396	2693
73	on request	on request	1315	2631	1835	3671	2929
76	on request	on request	1417	2833	1977	3953	3175
78	on request	on request	1486	2972	2073	4147	3344
81	on request	on request	1592	3184	2222	4443	3606
84	on request	on request	1701	3403	2374	4748	3879
87	on request	on request	1813	3627	2530	5060	4160
90	on request	on request	1928	3856	2690	5380	4453

Applications

Typical duties

Ship anchoring and mooring for classification-society certifiable cable. See industry context
Offshore mooring and platform supply paths. See industry context
Buoy and mooring systems requiring stud link or open link geometry. See industry context

Documents

Related catalogue files

Download the approved Maxplus catalogue for drawings and complete size tables. Legacy third-party catalogues stay private research references.

Download catalogue

Certificates

Classification and quality evidence

Catalogue archive scans support buyer source-checking. Named society certificates for a specific order are issued on request.

Certification to a named society is available on order. Confirm the required society, grade, and diameter in the inquiry.

Review certificate archive

Next step

Request a quote for Anchor chain

Include diameter or size, grade or standard, application, and any class-society requirement. The form carries this family as context.

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