Grade 6 Alloy Steel Chain

Specially manufactured for Hackett Chains from high quality alloy steel material, this chain is manufactured on automatic chain making machines with flash butt welded joints. The chain is stress relieved at 400 – 420°C, after the quench and tempering process and followed by proof loading at 2.5 x working load limit. This process is to alleviate hydrogen cracking when the chain enters the hydrochloric acid bath during the galvanizing process. The other purpose of stress relieving Gr.6 chain, intended for a marine environment, is to prevent stress corrosion cracking when in service. All chain is embossed at regular intervals with a batch number for traceability purposes.
The high strength to weight ratio of this chain makes it ideal use for aquaculture mooring grid systems and in the manufacture of pelagic fishing nets. The larger internal dimensions of this type of chain make it a more popular product as it can accommodate larger shackles or alternative associated end fittings. Chain diameter range: 10mm – 22mm, available in hot dip galvanized finish.
Bespoke assemblies can be manufactured on application. Supplied in full drum lengths or cut to specific customer requirements.

Grade 6 Alloy Steel Mid Link Chain - Finish: Hot Dip Galvanized           Test: Batch Tested & Certified

Grade 7 Alloy Steel Long Link Chain - Finish: Hot Dip Galvanized           Test: Batch Tested & Certified