Offshore Mooring Chain

Offshore Mooring Chain

Offshore mooring chains, different from common anchor chains, are widely used in oil drilling platforms and other offshore structures to fix the platfroms and avoid movement. Due to the work environment is very bad, the mooring chains should have high strength, good toughness, wear resistance, fatigue resistance, corrosion resistance etc..

Size: 34mm~162mm

Grade: R3, R3S, R4, R4S,R5

Material: Offshore Mooring Chain Steel

Accessories: Stud Links of Mooring Chains, Studless Links of Mooring Chains, Swivel, Swivel Shackle, Triangle Plate etc.

Application: Offshore Drilling Equipment, Mobile Offshore Oil Recovery Equipment, Floating Crane, Pipe-laying Ship etc.

Certificate: CCS, BV, LR, ABS, BKI, API etc.

Service: We supply standard and non-standard products. We can also customize the products according to your special requirements.

ABS,DNV Mooring Chains Metric Load Sheet(Chain Dia. Unit: mm; Load Unit: kN)

Chain Diameter	R3		R3S			R4
Chain Diameter	Stud/Studless Pull Load	Breaking Load	Studless Link Pull Load	Stud Link Pull Load	Breaking Load	Studless Link Pull Load	Stud Link Pull Load	Breaking Load
50	1560	2230	1740	1800	2490	1920	2160	2740
52	1681	2403	1875	1940	2683	2069	2327	2953
54	1806	2581	2014	2083	2882	2222	2500	3171
56	1934	2764	2157	2231	3086	2380	2677	3396
58	2066	2953	2304	2384	3297	2543	2860	3628
60	2202	3147	2456	2541	3514	2710	3049	3867
62	2342	3347	2612	2702	3737	2882	3242	4112
64	2485	3552	2771	2867	3966	3058	3440	4364
66	2632	3762	2935	3036	4200	3239	3644	4622
68	2782	3977	3103	3210	4440	3424	3852	4886
70	2936	4196	3274	3387	4686	3613	4065	5156
73	3173	4535	3539	3661	5064	3905	4393	5572
76	3417	4885	3812	3943	5454	4206	4731	6002
78	3584	5124	3998	4136	5721	4411	4963	6295
81	3841	5490	4284	4432	6130	4727	5318	6746
84	4104	5866	4578	4735	6550	5051	5682	7028
87	4374	6252	4879	5047	6981	5383	6056	7682
90	4651	6648	5187	5366	7423	5724	6439	8168
92	4838	6916	5397	5583	7723	5955	6699	8498
95	5125	7326	5717	5914	8180	6308	7096	9002
97	5320	7604	5934	6138	8491	6547	7366	9343
100	5616	8028	6264	6480	8964	6912	7776	9864

Note: the above parameters is only one part. If you want to know more detail information, please feel free to contact us.

Testing Load of Mooring Chain Accessories

Load(KN)	R3 Stud Chian	R3S Stud Chain	R4 Stud Chain
Pull Load(PL)	0.0156d²(44-0.08d)	0.0180d²(44-0.08d)	0.0216d²(44-0.08d)
Breaking Load(BL)	0.0223d²(44-0.08d)	0.0249d²(44-0.08d)	0.0274d²(44-0.08d)
Load(KN)	R3 Studless Chian	R3S Studless Chain	R4 Studless Chain
Pull Load(PL)	0.0156d²(44-0.08d)	0.01743d²(44-0.08d)	0.01918d²(44-0.08d)
Breaking Load(BL)	0.0223d²(44-0.08d)	0.0249d²(44-0.08d)	0.0274d²(44-0.08d)

Note: this load sheet refers to ABS rules and DNV rules, all loading data included in the sheet shall be calculated according to relevant formulas.

Mechanical Properities of Mooring Chains

Grade	Yield Point (N/mm²,min)	Tensile Strength (N/mm²,min)	Elongation (%,min)	Reduction of Area (%,min)	Impact Test(V-notch )
					Test Temperature (℃)	Impact (J,min)
						Base Part	Weld Part
API Spec 2F (ORQ)	___	641	17	40	0	58	49
					-15	40	36
ABS/RQ3 DNV/NVR3	410	690	17	50	0	60	50
					-20	40	30
ABS/RQ3S DNV/NVR3S	490	770	15	50	0	65	53
					-20	45	43
ABS/RQ4 DNV/NVR4	580	860	12	50	-20	50	36

Manufacturing Process of Mooring Chain

1. Raw Material Inspection → 2. Bar Cutting → 3. Bar Heating → 4. Bending → 5. Welding → 6. Trimming → 7. Stud Inserting → 8. Surface Treatment → 9. NDT(MT+UT) → 10. Heat Treatment → 11. Proof Load Test → 12. Cross Rolling → 13. Surface Treatment → 14. NDT(MT+UT) → 15. Packing and Painting → 16. Delivery

Offshore Mooring Chain

Offshore Mooring Chain

Offshore Mooring Chain

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