Rear strut tower brace material

[Peter Serwe]

I ended up going with 3/4" hex stock, 4140 steel hot (rolled?).

It should weigh in at about 6.5 to 7lbs at I *think* 1.66lbs/ft.

It'll be 50", with 4" of thread on each end (left on one end, right on the
other), and will basically
work like a turnbuckle.

I'm working on the plates still, I want those to be 1/8" stock.

This should give me plenty of stiffness, I believe.

Gerald.Kloth@ipst.edu wrote:

> Many people are under the impression that stronger steel is also
> stiffer.  This is not so.  The modulus of elasticity (stiffness, resistance
> to deformation) in tension & compression of all steels is nearly the same
> at 30,000,000 lbs/sq. in.  as long as it is loaded within its elastic
> limits.  What you will get with T,G&P stock is a much better surface finish
> and a much straighter bar.  It will have less tendency to warp when welded
> than cold rolled stock because CR stock has a lot of built-in stress from
> the rolling process.

--
Peter Serwe <peter@easytree.net>
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