[TheForge] Source of junkyard hardenable-steel pipe.

[J. Petrila]

4140
JLP Services Inc
6 Kenwood Dr
Rutland, MA 01543-1215

1 (508) 667-5498


On Wed, Jul 31, 2019 at 12:56 PM Bruce . <freemab222 at gmail.com> wrote:

> No blacksmithing content, but it *is* about steel...
>
> I'd like to get some steel pipe on the cheap for a project I'm
> contemplating:
>
>    - The final dimensions aren't set yet, so anything about 1.5" (actual)
> OD
>    or more would do for the prototype.  I could envision a final design of
>    up to 8" OD, but that's a long way in the future and not worth dealing
> with
>    for prototyping.  Meanwhile, anything in between is worth considering.
>    - The wall thickness must be sufficient to accommodate significant
>    machining of the ID and OD.  (E.g., schedule 80 might do.  Schedule 40
>    would not do.)  For a 1.5" (actual) OD pipe, a 1/4" wall would probably
> be
>    fine.
>    - I need only a few inches length -- maybe 3X the OD of the pipe -- but
>    I may need to have several goes at it in fabricating a prototype, so I'd
>    probably consume a lot more than that before I get it right.
>    - It must be machinable (after normalizing, if necessary) as it has to
>    be turned and drilled during fabrication.
>    - It must be of a hardenable alloy -- think: suitable for a knife.
>    - Some rust resistance would be desirable, as it is to be used in a
>    (noncorrosive) wet environment, but this is not essential.
>    - I'd prefer seamless pipe, but could accommodate any good-quality pipe,
>    if I can machine off any weld bead.
>
>
> Ultimately, I'd expect to purchase this pipe from some retail supplier, but
> for my initial prototype I'd like to scavenge junkyard steel or else
> purchase something on the cheap, as I'm probably going to have to fab
> several prototypes before I get anything workable.
>
> Can anyone think of a possible source (junkyard or steel supplier) for such
> pipe?
>
> I'm thinking that the cylinder piston for a large hydraulic cylinder
> (possibly available as junkyard steel) might do, but I have no idea what
> alloy is used for that and whether it be hardenable.  It's conceivable that
> some ordinary pipe (maybe cold-drawn seamless?) would do, but, again, I
> have no info on alloy or hardenability.
>
> Bruce
> NJ
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