Torque

here you go

http://www.tescocorp.com/data/1/rec_docs/232_66000e%20MLT%20Ring%20Torque%20%20SI%20&%20Metric%20Dec%2013%202005.pdf

copy and paste into your browser

Well, thats only half the answer. IF threads are Drill pipe threads.

The above link only helps a bit with EUE threads.

You will find that make up torque rating and max torque rating or what ever you are after are dependend on the dimensional data and material grade it is made off.

There is plenty of suppliers out there for information but the best link so far is:

http://www.nov.com/frame.aspx?id=rotaryshoulder

Do you know what 4 1/2" IF corresponds to in the database?

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Its NC50! But when you want tp proceed you will have to learn quick.

Icke

are you the OP?

Nope I am guest! Maybe sometimes OP's answer their questions themselves. But not here. Did you find the link not useful?

Homework?

and what exactly do you mean by "Homework"???

Its posted under Education! Only seen that after I posted Guest number #2

The torque also depends on the surface finish and the friction between engaging components.

whereas I'm sure you think that your comment is valid, the question is simple, so lets not have an over complicated, elongated, scientific answer to "torque of pipes" PLEASE

thank you