12mm ISO4565 MF Grade 40 Hot Dip Galvanised Calibrated Anchor Chain

Jimmy Green 12mm ISO4565 MF Grade 40 Hot Dip Galvanised Calibrated Anchor Chain is sourced exclusively from MF Catenificio Frigerio.

The MF Catenificio chain is manufactured, hot dip galvanised, hallmark-stamped, and proof-tested in their modern research, testing, and production facility located near Lecco, Lake Como, Italy.

Grade 40 indicates a guaranteed tensile strength of 40 kg/mm².

The proof load testing process ensures that each individual weld has been completed successfully.

MF Catenificio Frigerio Hallmark Stamping Assurance

Each batch of chain is subjected to a series of rigorous load traction, breaking, and bending resistance examinations, which test the physical and mechanical characteristics under maximum stress conditions, ensuring that every weld is 100% guaranteed.

View a sample test certificate in this product listing via downloads.

MF 10mm ISO4565 Grade 40 Calibrated Anchor Chain features EN ISO 461 Regulated Hot Dip Galvanising to a micron depth of  80 ± 10 µ. delivering excellent protection against corrosion.

Hot-dip galvanising anchor chain is a challenging process which involves immersing the chain in a molten zinc bath.

The molten zinc chemically reacts with the surface of the steel to create an iron-zinc alloy.

The result is a deep, protective treatment to a minimum depth of 80 microns, as regulated by the EN ISO 461 standard.

MF Galvanising provides long-lasting resistance to abrasion and corrosion.

MF Catenificio's hot dip galvanising performance is further guaranteed by the stringent application of their state-of-the-art Salt-Spray testing treatment. 

MF Catenificio Salt Spray Galvanisation Test

The MF Salt Spray Test, developed by the MF Laboratory Team and introduced in 2023, scrutinises the effectiveness and durability of the galvanising treatment.

The MF testing laboratory conducts a stringent examination of each batch of chain, exposing it to a concentrated salt solution for 24/48 hour cycles.

Salt Spray Testing simulates the real environmental conditions to which the chain will be exposed during its service life.

The results are governed by the MF Catenificio Frigerio UNI EN ISO 9001 certified quality system.

Check your Calibration:

12mm Calibrated Anchor Chain is available in one primary calibration - ISO4565 (12 x 36)

It is essential 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 measure your existing chain, provided, 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 the outside edge.

DETERMINING THE CORRECT CALIBRATION

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

12mm ISO4565 Grade 40 Anchor Chain is generally suitable for yachts over 14 metres and up to approximately 20 metres in length overall

Splicing and Break Load Compatibility: 12mm Grade 40 Anchor Chain is compatible with 20mm diameter nylon and polyester.

Factor in all these criteria when deciding a suitable anchor chain size for your yacht:

• 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 length of chain that will be deployed and any extra scope provided by an anchor warp
• The weight and design of the 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.

1Kn Force = 101.972Kg Break Load

90Kn = approximately 9177kg

Maximum Pin Diameter refers to the largest pin that will just fit into the end link of a 12mm ISO4565 chain.

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

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.
A copy of the corresponding MF Catenificio Test Certificate is available with your order on request.

MF chain manufacturing has Lloyd's Register approval to the ultimate ISO 9001 quality standard:

MF LLOYDS REGISTER APPROVAL TO ISO 900

Jimmy Green charges for shipping based on the total weight on a pallet and the delivery destination Zip Code.

The Freight cost is calculated in the basket and assumes a UK Mainland delivery address until you are signed in with your registered delivery zip code.

You are welcome to collect from our Chandlery Store to save this cost.