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Re: Steel - Acme thread

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AISI 4140 steel & A193-B7 are very similar if not identical proved you
specify the correct heat treat level for the material (4130, 4140 & 4340
are all very good alloy steels) Rc 28 to 32 is a good hardness level.

regards    (BTW this sounds like a job for an ME )
 Robert Kazanjy, PE  **Disclaimer: I speak for myself not UC-Irvine**
 Senior Development Engineer
 Civil & Environmental Engineering
 UC Irvine
 E4130 EG,  Zot: 2175

Harold Sprague wrote:

> Is anyone aware of a manufacturer for Acme threaded rod that is ASTM
> 193-B7 material or better?
> I have found AISI 4140 steel, but I prefer using ASTM specifications.
> AISI specifications do not list mechanical properties, they only have
> the chemistry.  ASTM steels simplify the specification process.
> Regards,
> Harold Sprague, PE
> Krawinkler, Luth & Assoc.
> 4412 W. Eisenhower
> Loveland, CO 80537
> 970-667-2426 voice
> 970-667-2493 fax
> hsprague(--nospam--at)