Buy the Best Anchor Chain 

Anchoring with Confidence

Choosing the Right Anchor Chain for Your Pacific Sailing Adventures

The Pacific Ocean has hundreds of stunning islands and thousands of miles of rugged coastline. When you sail in the Pacific you will anchor in everything from sheltered bays to terribly exposed stretches of coastline.

Anchoring in the Pacific demands reliable anchoring equipment. A crucial element is your anchor chain.  The right chain provides peace of mind, knowing your vessel is securely fastened to the seabed when you anchor for the night or seek refuge from rough seas in a storm.  

Not all anchor chain is manufactured equally and we have never had so many choices, but with so many options available finding and then selecting the best anchor chain for your yacht can feel and is overwhelming.  This guide will equip you with the knowledge to make an informed decision.

So why am I writing this article, that's easy I need a new anchor chain, the chain on TinTin is badly worn and rusty, also it is not long enough to provide a 5 to 1 scope in a deep anchorage. So rather than have my old chain acid dipped and re-galvanized. I made the decision to purchase new chain with the expectation that I want 20 years of life from this new chain. 

I know from discussions with other sailors that there is a lot of really bad and dodgy chain sold as marine-grade anchor chain. I have spoken to some sailors who have been ripped off with poor grade chain, this chain only lasted few years before it rusted. Was that chain even strong enough, was the rating true, or was it all a scam?

Material Matters: Galvanized or Stainless Steel?

The two primary choices for anchor chain material are galvanized steel and stainless steel.  Hot-dip galvanized steel offers a robust and cost-effective solution.  The zinc coating provides excellent corrosion resistance in most saltwater environments.  However, in areas with high levels of biofouling or particularly harsh conditions, stainless steel might prove to be a better long-term investment.  While more expensive, stainless steel boasts superior corrosion resistance and requires less maintenance, however it is more expensive.

Strength is Key: Choosing the Right Grade

Anchor chain is graded according to its breaking strength.  Common grades in New Zealand where I will buy my new chaine include Short Link (SH), High Test (HT), and Proof Coil (PC).   SH chain, with its shorter links, offers an excellent strength-to-weight ratio and efficient windlass operation, making it a popular choice for many yachts.  However, for larger vessels or those venturing into challenging conditions, HT chain provides the additional strength needed. Din766 Calibrated Anchor Chain Has a higher breaking load than both Grade 30 & Grade L which are the same.

I am considering a Galvanised chain, 10mm SH Din 766 chain for TinTin, I am currently deciding between Chinese and Italian manufacturers. There may be other manufacturers and that is my challenge.

Finding the Perfect Fit: Chain Size and Length

Chain size, measured in millimeters (mm), should be compatible with your windlass and anchor. Finding the correct chain size. Most modern windlass will have numbers printed on the chain wheel/gypsies. When there are no marking the only alternative is to get chain samples to try on you windlass.

Yacht chandleries in New Zealand can advise on the appropriate size based on your vessel's specifications.  I have spoken to several chain wholesale business and a chandlery. It appears the price between what could garbage and high quality chain is measured small change. I will be spending at least $3000.00 NZD for my yacht.

Chain length is equally important.  A common rule of thumb is to have a scope (ratio of chain length to water depth) of at least 5:1.  This provides sufficient catenary (curve) in the chain to absorb shock and prevent the anchor from pulling free in rough conditions.  For exposed anchorages or areas with strong currents, you will need an even longer scope to 7:1 or even 10:1 for optimal holding power. I want at least a 5: 1 scope in 20m of water so I need 100m of chain. 

Beyond the Basics: Additional Considerations

Remember, your anchor chain is just one part of the anchoring system.  Ensure you have a suitable anchor for the seabed conditions you'll encounter. I use a Rocna Fisherman, this has proven to be a reliable anchor that digs in like a tick.  Regular chain inspections are crucial, checking for wear and tear, and look for damage.  Finally, invest in a quality chain snubber, a line attached to the chain that helps absorb shock loads and reduce strain on the windlass and anchor. I use a 5m long x 20mm length of nylon rope with a wear protector.

Considering these factors, you can choose the best anchor chain for your adventures.  With the right chain in place, you can navigate the Pacific Ocean with confidence, knowing your vessel is securely anchored and ready to explore the wonders that await.