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10mm DIN766 or ISO MF DAMS Grade 70 Calibrated Anchor Chain
10mm DIN766 or ISO MF DAMS Grade 70 Calibrated Anchor Chain

High Strength Grade 70

Manufactured by MF Catenificio in Italy from Grade 70kg/mm2 Steel

DIN766 10x28 or ISO4565 10x30 Calibration

Break Load 110Kn = approximately 11216kg

Enhanced Solid Zinc Hot Dip Galvanising

28 metres ISO4565 in stock

Allow lead time from the factory for any other length or calibration


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More Information

Jimmy Green Marine 10mm DIN766 and ISO4565 MF DAMS Grade 70 is sourced exclusively and directly from MF Catenificio Frigerio, a modern chain manufacturing plant in Italy.

MF Catenificio manufacturing is all carried out in their own research, test and ISO9001 attested production facility.
The whole state of the art enterprise is located in Olginate, near Lecco, Lake Como, Italy.

Every link is proof tested during the production process as part of their quality control.
The proof load testing process ensures that each individual weld has been completed successfully.

DAMS stands for Downsizing Anchoring and Mooring System

MF DAMS Grade 70 Calibrated Anchor Chain

MF Calibrated Anchor Chain features enhanced Solid Zinc Galvanising treatment with greater micron depth and prolonged protection against corrosion.

MF Solid Zinc Galvanising

MF have developed an enhanced Solid Zinc Galvanising treatment in conjunction with the standard hot dip galvanising process.
Solid Zinc Galvanising is an MF duplex treatment where both aspects of the process are complementary hot dip molten zinc galvanisation.
The improved coverage, micron depth and adhesion properties extended the effective working life of the galvanising by up to 25%.
Solid Zinc galvanising has a bright smooth appearance.

MF DAMS Grade 70kg/mm squared Calibrated Anchor Chain

MF DAMS Grade 70 10mm DIN766/ISO4565 has a break load in excess of 13mm DIN766 Grade 40 chain
A 10mm Grade 70 anchor rode can therefore be approximately 50% longer than the 13mm Grade 40 equivalent without any increase in weight.
MF DAMS 10mm Grade 70 chain is a long-length, high-performance extended-cruising solution for yachts up to approximately 20 metres length overall.
N.B. As a comparison, 13mm Grade 40 chain is generally suitable for yachts up to 20 metres length overall.
However, it is advisable to take all the relevant information into account when determining whether 10mm Grade 70 will be suitable for yachts between 18 metres and 20 metres due to the reduction in the weight of the anchor rode and the exponential nature of yacht displacement as the length increases over 16 metres.

It is exteremly important to factor in:

  • Displacement : Length ratio
  • Your cruising intentions
  • The anticipated anchorage conditions e.g. depth, seabed holding characteristics, the length of fetch and degree of exposure to prevailing winds
  • The lengthand weight of chain that will be deployed 
  • The weight and design of anchor

Your anchor rode is only as strong as the weakest link so ensure that all your connectors and shackles are rated to the requisite break load.
The strength of 10mm Grade 70 means that it is best considered as an all chain solution rather than a chain/rope combination.
18mm is the largest compatible diameter rope to splice into 10mm DIN766 or 10mm ISO chain.
N.B. A minimum 24mm/28mm diameter nylon rope would be required in order for the chain and rope combination to be reasonably compatible in terms of strength.

Check your calibration:

10mm Calibrated Anchor Chain is available in two different calibrations - ISO4565 (10 X 30) AND DIN766 (10 X 28)

It is very important to check the size and calibration of your gypsy/chain before you order

If you are unsure we can help you to decide - we will take all reasonable steps to ensure you get the correct chain

The simplest way to check that you are buying the correct calibration is to take a measurement from your existing chain, providing of course that it fits correctly.

We measure 10 links because, in practice, it is difficult to measure one link accurately enough.
The links should be laid out flat and pulled tight.
Measure from the outside edge to outside edge.

How to determine the correct calibration
N.B. The measurement for an old chain may be a little longer than new due to a degree of wear and elongation in use

MF DAMS Grade 70 10mm DIN766 Dimensions:
Chain Size  Outside Width   Pitch 
10mm DIN766 Maximum 36mm 28mm

MF 10mm ISO Dimensions

MF DAMS Grade 70 10mm ISO Dimensions:
Chain Size Outside Width Pitch
10mm ISO Maximum 36mm 30mm
MF DAMS Grade 70 10mm DIN766 or ISO Specification:
Maximum Pin Dia. Break Load Weight per metre
13mm 110Kn c 2.35kg

Every link is tested to the proof load during the manufacturing process ensuring that each weld has been completed successfully

1Kn Force = 101.972Kg Break Load

110Kn = approximately 11216kg

Maximum Pin Diameter refers to the largest pin which will fit comfortably in the end link of 8mm DIN766 chain

Select the largest possible galvanised shackle (or anchor connector) by pin diameter to fit the chain

A copy of the Test Certificate is available with your order on request

Jimmy Green Quality Control and Accountability
Every length of chain is checked and labelled with the manufacturer, the date received and a corresponding batch number when it arrives.
The batch number is then recorded at the point of sale.
Every chain order is therefore traceable and accountable to the manufacturer Test Certificate

  • Purchase Type - Set Lengths
  • Chain Size - 10mm
  • Chain Finish - Hot Dipped Galvanised
  • Boat Length (Anchoring) - 16-18 metres up to 20 tonnes
  • Boat Length (Anchoring) - 18-20 metres up to 25 tonnes

Chain Markers

Chain Markers

Quick Link
Chain Rivet Link - stainless steel
Maillon Rapide, stainless steel rated link

Osculati Chain Connecting Rivet Link, 8 pins
Force 7 Grade 70 anchor chain shackle link, showing all three sizes

AnchoRight 8mm Chain Markers - one colour with plate

MF DAMS 10mm ISO4565 Certificate

MF 10mm ISO4565 Grade 70 Solid Zinc Sample Test Certificate

Download (822.64KB)

MF DAMS 10mm DIN766 Certificate

MF 10mm DIN766 Grade 70 Solid Zinc Sample Test Certificate

Download (832.99KB)