[TheForge] What kind of steel is this

Mon Jan 21 22:53:00 2002

It's hard telling what you've got, but since it's a small section, it will 
cool quickly if you try to anneal it in air.  If it's air hardening like 
A2, several of the S series,  and others, you're getting it hot enough to 
go rock hard when you braze it.  Air hardening steel would also explain 
your failure to anneal in the first place, if you tried to do it in air.

For A2, tempering is done by taking the steel to ~1000 degrees (black heat) 
and holding it there for an hour or so.  See if that helps.  Annealing is 
done by taking the steel to critical temp and cooling very 
sloooowly.  Cooling it in ashes or vermiculite is probably too fast for a 
small section like 1/4".  You may need to put a lump of something big 
that's the same temp as the rod right next to it in the ashes.

At 10:08 PM 1/21/2002 -0500, you wrote:
>I think I tried annealing it the first time and it made little difference.
>The breaks came near to where I had been doing the brazing, and there was no
>quenching done.
>
>Harry
>
>-----Original Message-----
>From: [email protected]
>[mailto:[email protected]]On Behalf Of Rafter Lazy C
>Sent: Monday, January 21, 2002 7:16 AM
>To: [email protected]
>Subject: Re: [TheForge] What kind of steel is this
>
>
>At a wild guess, this might be spring stock, and needing annealed before
>making small adjustments will be possible.
>
>Rick Crawford at  Rafter Lazy C
>Home of Rick's Forge and Lem the Wonder Mule
>email = [email protected]
>home page = http://www.tbcnet.com/~rafterlazyc/
>
>----- Original Message -----
>From: "H and P Foster" <[email protected]>
>To: <[email protected]>
>Sent: Monday, January 21, 2002 5:26 AM
>Subject: [TheForge] What kind of steel is this
>
>
> >
> > A few months ago I was at a scrap yard and found and bought about 80 feet
>of
> > 1/4" round stock.  One of the first things I did with it was for a project
> > that required forging and drilling of a hole.  No way could I drill the
> > hole.  I carried on with some other stock for that project and forgot
>about
> > that material until today.
> >
> > What I was doing today did not require any drilling, only fitting to shape
> > and some brazing. The material took the brazing ok, but when it cooled
>down
> > and I was making small adjustments to the shape, it promptly broke cleanly
> > in half.  This happened twice. What kind of material would do that?
> >
> > thanks for any help.
> >
> > Harry Foster
> > Rusty Dog Forge
>
>
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