Thanks Sir. I only wanted to point out that there are different types of cast and knowing the amount of steel used dictates the cutting procedure. Pure cast was used in the past but some of the cast produced today is categorized as ductile because of the amount of steel used with the iron.
Steel is the fuel used to burn through metal with a torch. Pure cast only melts with heat because it does not have the fuel to burn.
My understanding is that cast up to the 1940's with steel in it is rare. After the 1960's ductile cast is more common than pure cast. In between these time frames it is a crap shoot. If someone could provide more insight it would be appreciated.
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