Well, I've got the Machinery's Handbook here... But I have no freakin
clue how to give you the info you're looking for. The charts are all
Greek to me. Sorry Hope you get some help.

chem

Stu wrote:
The tensile strength of 3/4" black threaded pipe into a steel threaded
female flange?

Sure appreciate you looking it up.

Stu

In article
,
says...
The tensile strength of 3/4" black threaded pipe into a steel threaded
female flange?

Sure appreciate you looking it up.


If you mean the force required to the pull pipe out of the
fitting, I doubt you're going to find the number in a
table. I think you'd be safe using the rated working
pressure of the threaded pipe times the inside area of the
pipe as a lower bound.

Assuming a stout flange, my SWAG is that failure would
occur at the root of the threads near the fitting, where
the wall of the pipe is thin due to the threads.

If safety is an issue here, you really should have someone
competent look at the whole picture.

Ned Simmons

I don't think that you're going to get any answers different from the
ones you got when you asked this question 9/25.

In article , chem
writes:

Well, I've got the Machinery's Handbook here... But I have no freakin
clue how to give you the info you're looking for. The charts are all
Greek to me. Sorry Hope you get some help.

chem

Stu wrote:
The tensile strength of 3/4" black threaded pipe into a steel threaded
female flange?

Sure appreciate you looking it up.

Stu


Why did you even reply? There's too much usless stuff on this NG now.

I'm no engineer or mathematiacon SP but my opinion is that it's a question of
shear strength which my handbook seems to say is 75% of tensile strength for
most ferrous alloys. Sorry I cant help you with the math to calculate the area
being sheared, but I hope this will be a starting point for you.
Engineman1