[TheForge] Old Boilers...

[Jason Nass]

Because adding carbon lowers the melting temperature of the iron. The less
carbon, the higher the melting temp. Or at least that is what I have
gathered from the small amount of metallurgy I have studied. Apparently the
more junk in the iron, the hotter you have to get it to melt. I'd also
imaging that it doesn't burn as well with the oxygen blast, so it probably
doesn't pick up the "momentum" you are used to with normal cutting. This is
all just conjecture of course, I am no expert on the subject, and may be
entirely off base on this.

-----Original Message-----
From: theforge-bounces at mailman.qth.net
[mailto:theforge-bounces at mailman.qth.net] On Behalf Of Andy Gladish
Sent: Tuesday, February 15, 2011 1:00 PM
To: Blacksmithing List Sponsored by ABANA
Subject: Re: [TheForge] Old Boilers...

I got some boiler plate from the shipyard that was the nicest mild steel- 
and I don't mean A-36, I mean very low Carbon, it forged like Pure Iron. 
Made a bunch of spoons and forks from that, I'd like to have a few hundred 
pounds of it!
Has that PI spark, too.
Though, like you say, it's stubborn to cut- why would that be, anyone know? 
I've never tried to cut Pure Iron with a torch...
Andy G.




--: [TheForge] Old Boilers...


Figured I'd throw this one out for ideas.



Does anyone here know about old early 20th cent. Boilers?



My son has a friend down in Milwaukee who is getting ready to tear out an
old boiler based heating system from a property he is renovating.



Any Ideas on the probability of the boiler and radiators being cast vs
wrought-iron?



Thanks in advance!

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