Breaking steal plates (no reservations)

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Aug 6, 2007
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Have any of you seen the show No Reservations about a guy who travels to different places and eats alot of wierd foods. If you do did you happen to catch the show where he was in Balli, Indonesia. I saw a rerun of that last night where they were watching a group preform some sort of martial art and the broke three 1/4 inch thick pieces of steal plate:eek:. Its possible I saw it happen the only trick would be they where Hardend steal plates that where never tempered and they were so hard they just snapped like a twig they even broke one over another performers head
 
I haven't seen the show but I've dropped a couple of my blades that had been hardened but not tempered and they shattered like glass when they hit the concrete in the garage.
 
sorry to pick nits, but its steel :) they must have been hardened and untempered. any other option and they would bend.
 
I think I made comments recently about the brittlements of high carbon steel with continuous carbide in the grain boundary.
 
In No Reservations the plates were cast iron. I've done it (much less metal) using untempered hardened steel.

WS
 
In No Reservations the plates were cast iron. I've done it (much less metal) using untempered hardened steel.

WS

They didn't, by any chance, mention what type of cast did they (grey, white, or malleable)? In a thin cross-section (1/4") grey or white cast would snap very easily. Malleable cast would deform more before breaking because of a higher percentage of deformation before it reaches it's elastic limit(if I'm remembering my welding metallurgy correctly). I guess I need to go back to the books and do a refresher:D. Correct me if I'm wrong.

Nathan
 
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