Correct abbreviations

[ssaurer]

Hi
I need some HELP for the correct way to abbreviate a torque rating.
For years I've called it out this way: i.e. 125,000 lb in @ 3,000 psi.
NOW I'm being told to call it out this way: 125,000 IN*LBF @ 3,000 PSI.
Which way is correct? My understanding is #1 that it should always be
lowercase and #2 to use the ANSI/ASME Standard when in doubt. As far
as I can tell the standard says to use "lbf*in" or "lb in" and "psi"

I've used this rule for 40 years. No I'm told I am wrong.
Thanks

 

[KENAT]

Is this on drawings or in other documentation?

On drawings general convention is to use upper case everywhere except where lower case has a specific meaning such as in unit prefixes in SI units (e.g. mm) etc.

Posting guidelines faq731-376

http://eng-tips.com/market.cfm?

(probably not aimed specifically at you)
What is Engineering anyway: faq1088-1484​

 

[Tunalover]

Torque and work are Force X Distance so the units should be LB-IN.


Tunalover

 

[jte]

It should be slug * acres/ft.

Or whatever other units seem to work for the circumstance. If it were easy, we wouldn't be talking about it, and a one size fits all mentality won't work.

Take a look at the thread below for some other perspecives.

http://www.eng-tips.com/viewthread.cfm?qid=362357

 

[BigInch]

Tunalover, Then, multiplication being associative, what's distance x force.

I hate Windowz 8!!!!