[Public-list] Marine Alloys of bronze

[Gordon Laco]

OK - I am back in the office... Am not going to go for the wooden boat.  She
is a Concordia yawl - but rescuing her is beyond my means.  I must be
becoming an adult to come to such a rational conclusion...

Alloys:

LG2 Gunmetal: 

85% copper, 5% lead, 5% tin, 5% zinc.

This alloy is good for portlights, cleats, chocks etc.  Yes, it was once
used for cannon.

AB2 Aluminium Bronze:

83% copper, 10% aluminium, 5% nickel, 3% iron

Very stiff and strong - great where hardness and strength are required.
Good for chainplates, lifeline stanchions, shackles etc.

Silicon Bronze

Sorry, don't have the ingredients for this one but it is good for similar
applications to that of AB2, but is not so expensive.  You see this one most
often in turnbuckles, toggles, pins, fastenings etc.

Gord #426 Surprise
 







> Gord,
> 
> Do you remember the name of the proper alloy of Auminum Bronze?  Metal
> dealers often sell their offcuts on Ebay.  I've seen Aluminum Bronze,
> but never Silicon Bronze.
> 
> - George
>


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