R3 Grade Mooring Chain

R3 Grade Mooring Chain – Ultra-High Strength for Demanding Offshore Applications

Engineered for Extreme Conditions

Unlike standard anchor chains, R3 Grade Mooring Chain is specifically designed for permanent offshore installations, including:

Oil & gas platforms
Floating production systems (FPSOs)
Subsea infrastructure moorings
Renewable energy installations (wind farms, tidal systems)

Built to withstand decades of continuous use in deepwater environments with:
✔ Exceptional tensile strength (R3 grade exceeds standard marine chain specs)
✔ Superior fatigue resistance for dynamic loading
✔ Enhanced corrosion protection against seawater deterioration
✔ Proven wear resistance from constant seabed interaction

Key Differentiators vs. Standard Anchor Chains

Feature	R3 Mooring Chain	Standard Anchor Chain
Primary Use	Permanent offshore installations	Temporary ship anchoring
Load Profile	Constant tension + dynamic fatigue	Intermittent shock loading
Material Spec	Special alloy steel with toughness	High-tensile carbon steel
Corrosion Resistance	Advanced coatings + cathodic protection	Basic galvanization/painting
Certification	API 2F, DNV-OS-E302, etc.	ABS, LR, NK, etc.

Parameters:

R3		Chain Diameter
Breaking Load	Stud, Studless Tension
1308	745	34
1461	832	36
1621	923	38
1789	1019	40
1965	1119	42
2148	1223	44
2338	1331	46
2536	1444	48
2740	1560	50
2952	1681	52
3171	1806	54
3396	1934	56
3628	2066	58
3867	2202	60
4112	2342	62
4364	2485	64
4622	2632	66
4886	2782	68
5156	2936	70
5572	3173	73
6002	3417	76
6295	3584	78
6746	3841	81
7208	4104	84
7682	4374	87
8168	4651	90
8498	4838	92
9002	5125	95
9343	5320	97
9864	5616	100
10217	5817	102
10755	6123	105
11118	6330	107
11857	6751	111
12421	7072	114
12993	7398	117
13573	7728	120
13964	7951	122
14358	8175	124
14956	8515	127
15559	8859	130
15965	9090	132
16992	9674	137
18034	10268	142
19089	10869	147
20157	11476	152
21235	12090	157
22321	12708	162