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Anchoring Information

Anchor Rope Break Load and Chain Compatibility Chart

The strength (breaking load) of your anchor rope should be broadly comparable with the strength of your anchor chain.

Anchor Rope Break Load by Rope Type
Rope Rope Diameter10mm12mm14mm16mm18mm20mm24mm
LIROS 3 Strand Nylon2440Kg3365Kg4485Kg5710Kg7135Kg8300Kg12030Kg
LIROS Anchorplait Nylon2440Kg3365Kg4485Kg5710Kg7135Kg8300Kg12030Kg
LIROS Octoplait Polyester2040Kg2445Kg3870Kg4790Kg5910Kg7750Kg11820Kg
LIROS 3 Strand Polyester2040Kg2445Kg3870Kg4790Kg5910Kg7750Kg11820Kg
Chain Break Load by Grade
Chain Diameter6mm7mm8mm10mm12mm13mm14mm
Grade 3 Stainless3200kg5000kg7200kg
Grade 40 Galvanised2400kg3000kg4000kg6500kg9200kg10800kg12700kg
Grade 6 Stainless3800kg6400kg10100kg14500kg17000kg
Grade 70 Galvanised7000kg11200kg
Comparing the two charts shows approximate compatibility as follows:
Nylon Anchor RopeBroadly Comparable***
10mm6mm Grade 40 Galvanised
12mm7mm Grade 40 galvanised and 8mm G3 Stainless
14mm8mm Grade 40 Galvanised and 10mm G3 Stainless
16mm10mm Grade 40 Galvanised, 10mm G3 Stainless. 8mm G6 Stainless
18mm10mm Grade 40 Galvanised, 10mm G6 Stainless, 8mm Grade 70 Galvanised
20mm12mm Grade 40 Galvanised, 12mm Grade 30 Galvanised
24mm13mm/14mm Grade 40 Galvanised, 10mm Grade 70 Galvanised

***Broadly comparable means approximately plus or minus 10%

Check the relative break loads carefully before making your selection, and take all the relevant factors into account.

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