On Sun, 9 Nov 2014 10:48:21 -0800 (PST), "
wrote:

On Sunday, November 9, 2014 12:47:43 PM UTC-5, Sandarpan Mukherjee wrote:

The bar will be at least 190000 psi tensile strength with 170000 psi yield strength.
Thanks

I can not imagine needing that kind of strength for something that a human in going to use. What diameter is the bar? What is the maximum weight that is going to be on the bar? My guess is that an ordinary barbell is made of something like A36.

Dan

The top end Olympic lifting bars (Elieko) are said to be 215,000 psi
tensile strength steel and are heat treated. They claim to test their7
bars in a jig that loads them to 1,500 Kg. (3,306 Lb.) and the bar
must withstand that without taking a permanent set.

The Men's standard bar is 2.2 M (7.2 ft.) long, the center section is
28 mm (1.1") with a "sleeve" on each end that is 415mm (16.3") long by
50 mm (1.968") in diameter. the sleeves are mounted on bearings so
that when lifting the weights do not apply any torque to the center
section where the bar is gripped. the complete bar weighs 20 Kg.

A quick look seems to show that Hossein Rezazadeh, an Iranian, holds
the record at a total weight lifted, in the two events, of 472 Kg, The
Clean & Jerk record is 363 kg. and the Snatch record is 214 kg.

The maximum that a human can bend over and pickup (Dead Lift) seems to
be in the neighborhood of 460 Kg. or 1014 lbs.
--
Cheers,

John B.