Drop forged grade 80 25mm ring

[Rhylsailer99]

I used one of those yellow grade 80 rings for my mooring a few years back. Whilst looking through posts I happened to read a post about grade 80 not being suitable.for marine use. Will the ring be ok so long as it has not rusted too thin?

 

[vyv_cox]

I cannot find a reason why it would not be suitable. Carbon content is about 0.2%, satisfying the fundamental rule for anchoring gear. Otherwise it contains various alloying elements, dependent upon the precise grade, all beneficial. Its ductility and brittle/ductile transition temperature are both within optimum values.

 

[Neeves]

I've been using Grade 80 (and G100) components, shackles, Omega links, Hammerlocks, chain for well over a decade - and had no failures. They don't fail they just create mess when they start to corrode, they are retired and replaced with same. I have mine galvanised but the gal obviously wears off. There are other members who use hammerlocks in the rode. The US Navy are using G120 as tie down chains in landing craft - galvanised.

Single G80, or G100 components are really not expensive. Buy them 2 at a time. Use one until it starts to rust, the paint is quite robust, swap and paint the first one.

The Crosby bow shackles that are recommended for the rode are Grade 80

I'm in the process now of arranging a G100 chain for galvanising, 80m x 8mm replacing G30 x 10mm. with G100 aka G10 components

Jonathan

 

[Neeves]

In anchor threads here the recommended quality is this one

Crosby® 209A Alloy Screw Pin Anchor Shackles | Crosby®

Peerless, Campbell, Yoke make a similar quality.

You can buy Crosby shackles from Tecni, a UK company -


The colour yellow is a bit of a red herring. Peerless shackles to the same spec have Blue pins, Campbell an Orange pin, I think Crosby's are platinum coloured - and they all meet the same spec.

Jonathan