Calibrated Anchor Chain - Break Load and Weight Guide

Jimmy Green Marine stock 1000s of metres of Calibrated Anchor Chain including:

Hot Dip Galvanised: Grade 40 from: MF Catenificio and Lofrans Grade 43 from Titan DAMS Grade 70 High Strength from MF Catenificio DAMS

Stainless Steel: Grade G3 from William Hackett  Cromox Grade 60 G6 and Grade 60 G6 PLUS (A318L) from Ketten Walder

Jimmy Green Break Load Chart Advisory
These break loads are derived from published data and/or test certificates and the method of reporting does vary between manufacturers.
Essentially, the ultimate break load is dependent on the grade, and all manufacturers of the same grade of chain will have similar results.

Compare the break load across all our manufacturers of calibrated anchor chain:
6mm7mm8mm10mm12mm13mm14mm
Weight per metre0.8kg1.1kg1.45kg2.3kg3.25kg3.9kg
Lofrans Grade 40 2447kg4384kg6893kg9789kg
Titan Grade 43 4400kg7200kg
MF Grade 40 in Kn3059kg4079kg6424kg9177kg10809kg12746kg
G3 A316L stainless steel in kg3200kg5000kg7200kg
Cromox G6 Grade 60 in kg3823kg6424kg10197kg14531kg17029kg
Cromox G6 PLUS Grade 60 in kg3925kg6730kg10605kg16315kg18049kg
DAMS MF Grade 70 in Kn7138kg11217kg

If you see a break load denoted in Kilonewtons (Kn) you can convert as follows for comaprison:

1 Kn = 101.972 Kg

For an accurate conversion, multiply the Kn value by 101.972 to calculate the break load in kg. 

However, for a quick reference, just add two zeros onto the Kn value for the approximate strength in kg e.g. 43Kn becomes 4300kg.

Jimmy Green Marine offer a minimum Grade 40 hot dip galvanised calibrated anchor chain because size for size, it is approximately 25% stronger than Grade 30.

Grade 30 and Grade 40 Hot Dip Galvanised Calibrated Anchor Chain approximate break load Comparison Chart:

Quick Glance Comparison
Chain SizeCalibrationGrade 30Grade 40
6mmDIN7661800kg2400kg
7mmDIN7662500kg3000kg
8mmDIN7663200kg4000kg
10mmDIN766/ISO5000kg6300kg
12mmISO7200kg9000kg
13mmDIN7668000kg10600kg
14mmDIN76610000kg12500kg

Grade 43 (Titan) is slightly stronger than Grade 40

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