Torque calculation?

[GAL02]

Hi!
How do we calculate Torque to be apply on bolts?
If Bolt size, length & Nut size known to us.
bolt size: 2 1/2"
Length : 17"

Pl. Revert

With regards

 

[3DDave]

Read up at

http://www.boltscience.com

starting with

https://www.boltscience.com/pages/basics1.htm

 

[XL83NL]

Depends on the application. Is this structural, or for a piece of pressure equipment? For the latter see ASME PCC-1

Huub

 

[r6155]

Always think in bolt elongation (irrespective of diameter, with or without hydraulic tensioner), not in torque.

Regards

 

[GAL02]

Hi!
Thanks all! of you i will get it done with your guidance.

With regards