[TheForge] Re: Steel question OT

[Andrew Vida]

Larry Brown wrote:
> Andy
> You say it seems to be well refined, maybe it picked up a small amount 
> of carbon in the refining process.
> 
> Is it all consistent or are some parts more grainy than others?

	Very consistent, as far as I can see.
> 
> Maybe the grain was created when it was rolled?

	This is without doubt the case.

 > I don't know if this is
> possible for a fine grain but I've had steel split into pieces when 
> twisting. Made a rack for a truck using 2" channel from Japan that split 
> into 1" angle when the guy drove it with a load. Had to do the job over 
> for free. I have had square bars splinter when twisting(Encouraging for 
> structural steel)

	But this is due to some flaw in the steel.  I fyou examine the surface 
of the break, you will probably find a fine, or at least very 
directionally regular character, whereas with wrought iron the break 
reveals a coarse structure that is clearly aligned in a specific 
direction. along the axis or rolling or other deformation.  In my 
experience there is really no mistaking the one for the other.  It may 
be if you refine wrought enough, this quality may become unapparent, but 
I don't think I've ever rewelded wrought that many times,  I suppose I 
could try