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I'm learning to use Inventor 2008 and 2009 and I have a question concerning materials on both versions. I notice that you have pre defined materials that you can apply to whatever part you're working on but I'm not sure how does it actually works in the program itself specially on those cases...

Is there a formula for calculating the thickness of a piping blind (i.e. Flange, Fig 8, line blind, etc) ? If so, what is the appropiate formula for each type? Carlos

I'm trying to determine an Autocad drawing's creation date but I have a question: How can I determine the true creation date for a drawing created using imported drawings from a diferent file? I.E. If I copy some portions of another drawing and then import it into a blank drawing is there any...

I have Mathcad 2000 which I purchased on a trip to the US. Trouble is that since I live in a foreign spanish speaking country I can't install it on either my laptop with Windows XP Home nor on my desktop with Windows 98SE. It gives me the message that it is for sale only on the US and Canada. I...

I have a question: Are pipe flanged spools between the outlet/inlet tank valve and the tank itself allowed? If not, what is the reason? Carlos

What is the correct method in determining a pipe retiring thickness?

I have a question related to a welding procedure for welding the wall shell plates for a small 4000 BBLs water tank. Material of the wall plates is ASTM A36 1/4" thick 3 by 6 ft and the welding procedure calls for using welding electrodes A6010 for first pass and then A7018 for second and...

I have a question related to a welding procedure for welding the wall shell plates for a small 4000 BBLs water tank. Material of the wall plates is ASTM A36 1/4" thick 3 by 6 ft and the welding procedure calls for using welding electrodes A6010 for first pass and then A7018 for second and...

Is there any information (articles, freeware, worksheets, design data, etc) available on how to calculate a hot buried pipeline temperature profile? Your help is appreciated Carlos

Is it allowed by code to have the reinforcing plate of manhole opening overlap an horizontal shell course weld? Carlos

Is it worth it?

What is the best non destructive testing inspection method to verify soundness of welding at storage tank floors and at the junction of the first shell wall course and the floor?

What is the correct procedure to carry out a repair of a semi spherical head on a LPG bullet that was damaged by transport. The head was deformed and buckled towards the inside. Can it be straightened out and can it be repaired using a patch of the same material on top of the damaged area?