Channeling Frank here..... 20# would be the amount of dung used in
forging....
Cheers!!
Jim
On Mon, Nov 12, 2012 at 8:34 PM, <dwoerpel@wi.net> wrote:
> Thanks Mike that helped. Just what I was looking for.
> Dave
>
> > China structural steel 20# corresponds to ASTM or SAE 1020
> which would be
> > a
> > plain carbon steel with 0.20% carbon.
> Hot rolled yield strength around
> > 29000 psi, tensile around 55000
> psi.
> >
> > Mike Myers
> >
> >
> > On
> Mon, Nov 12, 2012 at 8:59 PM, <dwoerpel@wi.net> wrote:
> >
> >> OK, metallurgists. I'm looking at a set of jack stands and the
> pins
> >> are made of #20 steel. What does that mean? I've
> determined
> >> it's probably a China grading but haven't been
> able to find anything
> >> (that
> >> I could
> understand). How does the numbering system show strength,
> >>
> etc.?
> >>
> >> Just curious,
> >> Dave W.
> >> ------------------------
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Cheers!!
Jim Johnson
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