Anchor Chain Suppliers

An anchor chain holds a vessel against wind, current, and tide, and every link must match the ship's class-approved specification. A wrong grade or diameter on the quay means a failed survey or a missed departure. 

Marine anchor chain suppliers deliver certified stud link and open link chain, cut to the shackle lengths a ship needs, with mill certificates a class society will accept. RecordsMarine lists vetted suppliers of anchor chains by various categories, so procurement teams can compare options in one place.

What Anchor Chain Suppliers Actually Sell

A marine chain order is never only the chain. A proper catalogue covers the full chain-locker package:

• Stud link chain in grades U2, U3 and Q3 (higher grade for offshore and deep-draft vessels)
• Open link chain for smaller workboats and tugs
• Chain in standard 27.5 m shackle lengths, cut to the vessel's approved arrangement
• Kenter shackles, joining shackles, end links, and swivels
• Anchor shackles, chain stoppers, and bow stoppers
• Chain lockers, guide rollers, and hawse-pipe hardware
• Re-galvanising and refurbishment of the existing chain.

Grades and Sizes Anchor Chain Providers Carry on the Shelf

Class societies split the ship anchor chain into three main grades. Higher grades need smaller diameters for the same holding power, so forecastle weight drops:

1. Grade U2: standard duty, most common on merchant ships up to mid-size
2. Grade U3: higher tensile, fitted on VLCCs, large bulkers, and container ships
3. Grade Q3 (R3 / R4): mooring-grade chain for FPSOs, drill units, and permanent moorings

Diameters run from 12 mm on small vessels to 147 mm on ultra-large carriers and offshore platforms. The class notation fixes the grade and the diameter, so any substitute has to match.

How to Choose an Anchor Chain Supplier

Five checks separate a proper marine mill representative from a steel trader:

• Mill certificates 3.1 or 3.2 issued for every length, traceable to the steel heat number
• Type approval from the buyer's class society (ABS, DNV, LR, BV, ClassNK, KR, or RINA)
• Cut-to-length capability, including welding of new Kenter links and proof-load testing
• Stock of matched shackles and fittings, not just raw chain
• Delivery by low-loader or barge into the loading berth, not to a warehouse miles from the vessel.

Miss any of these, and the chain arrives without paperwork or with wrong fittings.

FAQs 

What measurement unit do suppliers use for anchor chain length?

The shackle. One shackle is 27.5 metres (15 fathoms / 90 feet) and is the standard order unit on ships. Quotes list the diameter in millimetres, the grade, and the number of shackles; yachts and small craft are quoted in metres instead.

Can a supplier match a new chain to an older vessel's specification?

Yes. Send the ship's class certificate, current chain grade and diameter, and year of build. The supplier checks these against current class rules and supplies a compatible chain or advises on any grade change required at the next survey.

Do anchor chain providers refurbish chain, or only sell new?

Most directory firms offer re-galvanising, proof-load testing, and replacement of worn links on the chain that still holds a valid class certificate. Refurbishment costs 30 to 50 percent of the new-chain price and keeps the original class record intact.

How long does a new anchor chain take to deliver?

Stock sizes ship in 7 to 14 days. Non-standard diameters or mooring-grade chain are mill-made and run 8 to 12 weeks, so yards and owners usually order against the next dry-dock or survey.

How should I compare prices between anchor chain providers?

Ask for a quote per shackle at the same grade, diameter, and class approval, and check whether shackles, swivels, and galvanising are included or charged separately. A headline price that excludes fittings ends up 10 to 20 percent higher once the full order is assembled.

Find Anchor Chain Suppliers Near Your Port

We at RecordsMarine have compiled a full list of the best providers of anchor chains. Choose your category, review the grades each firm carries, and contact the one matching your class notation.