Hardner Alloy

[303Guy]

Can anyone identify this alloy? I found it at a metal recycler here in NZ. Each block has a signature stamp on it and the mold at least was made in UK (or has the London company embossing in it).

http://i388.photobucket.com/albums/oo327/303Guy/Hardneralloy001.jpghttp://i388.photobucket.com/albums/oo327/303Guy/Hardneralloy004-1.jpghttp://i388.photobucket.com/albums/oo327/303Guy/Hardneralloy007.jpg

It is quite strong and hard but breaks rather than bend. It starts to go porridgy before it melts and has a long slushy period on cooling. Would this be lino type or mono type or something?

[Longwood]

It's Babbitt.

[bumpo628]

Could be grade 11 babbit.
http://www.rotometals.com/Babbit-Bearing-Alloys-s/2.htm

Grade 11 (SAE-11)
Lead % = 0%
Tin % = 86-89%
Antimony % = 6-7.5%
Copper % = 5-6.5%

[303Guy]

Thanks. That should make a good tough boolit. Should be good with a small hollow nose for hunting. It didn't take much to get to the toughness/hardness I think I need.

[Ausglock]

G'day.
We still buy Babbit from Hoyt Metal here in OZ.
We use it for Saw packing in our Sawbenches in the sawmill.