Paul,
The only problem I find here is very, very few contractors will buy torque wrenches, and even less will make sure they are used correctly.
CMR
> Bolting
> http://www.pipingdesign.com/bolting.html
>
> Bolting Torque Data - Torque Required to Produce Bolt Stress
> Lamons Gasket Company
>
> <<The tables below reflect the results of many tests to determine
> the relation between torque and bolt stress. Values are based on
> steel bolting well lubricated with a heavy graphite and oil
> mixture. It was found that a non-lubricated bolt has an efficiency
> of about 50 percent of a well lubricated bolt and also that
> different lubricants produce results varying between the limits of
> 50 and 100 percent of the tabulated stress figures.>>
>
>
>
>
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Received on Thu Aug 16 20:31:00 2001
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