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Twin Cylinder Steam Engine

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sbwhart:

--- Quote from: Darren on June 16, 2009, 04:28:07 AM ---John/Stew,

(I say break like cast iron, this was hardly brittle when I was belting it)

 :scratch:

--- End quote ---

That says it all you've got cast steel.

 :hammer:

Stew

Darren:
Thanks Stew,

Do I take it cast steel has little use in our small world? That would be a shame as I have been collecting a bit of what I thought was cast iron and some are larger lumps.

I ssume there is no way of knowing till you try machining it?

sbwhart:
I can't realy answer that Darren everything as its use, the hard bit is finding it  :lol:

I supose its a mater of finding the right technique to machine and use it.

As for recognising it you could try the old grinder spark test cast iron gives off dull red sparks, steel bright sparkly sparks, try it on some test pices of material you know.

Stew

Darren:
Ah, the grinding test, never gave that a thought, I will try it later and report back..... :thumbup:


Reading about, cast steel is one of the strongest forms of steel, often used for making tools.......
Back down to reality, I think a surface grinder would be needed to get the best out of it?

Saved for later then  :)

bogstandard:
Darren,

As Stew has said, everything has a use. I have the base off a precision ball height gauge, made of cast steel. Can hardly machine the stuff, tough as old boots, even files skid over the surface.

But, just about to throw it away in the latest clearout, a little glimmer shone above my head. I can make a pressure weight out of it for my power hacksaw rather than tying up precious cast iron doing the same job. Another project to be done.

No waste and some other material freed up.


Yours will find a use eventually.


John

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