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Looking for yeild stress values for rating heater coils.Does anyone have and excel calculator for rating mawp inputing stress values?what would the mawp be for 4130 pipe 4" xxs?Trying to reach 10,000psi.

THANKS 0707, That was my understanding.

Hello Andy, My name is Andy also and I am a designer from Louisiana,USA. My opinion is that the inner I.D. should satisfy the psi requirements and the outer should meet external/internal temperature stress for expansion requirements.Unless the inner is an alloy for chemical resistance, than...

Hi, In a line heater, is the # of fire tubes = to the # of tube runs or is 1 firetube = to 1 u-tube? If I need 16' of tube, is that 16' in one direction or a complete u-tube?

Hi lsthil Thank you for the in put. I checked out fepipe and found it very good. My primary goal was to be able to calculate nozzle loads min & max .Our customers were asking for it. my company is checking fepipe out for possible usage. Thanks again!

Just what I was looking for! Thanks for the lead meca,I've checked it out. Works great!

Thanks for the help Isthil and dig1 and arto.Will get to work on it first thing Monday morning. Thanks again!

Yes, applied and max nozzle loads.Looking into possible design changes.Must Know max loads and allowable applied loads for nozzles, Basically, looking for easy way to calculate all possible design applications quickly.

Does anyone know where I can find a nozzle load calculation ? A free down load if possible !

Thanks for the info. much appreciated!

Hello, My engineering education came through the Navy's Nuclear Propulsion Program,Mechanical division. All of my reference material is military code. I need to acquire a GPSA Engineering data book.Does any one know where I can find such a book.

Sorry it took so long to reply, on a trip.Thanks for the tips,will try it first thing in the morning!

Does anyone have a shortcut solution for cutting holes in solids on autocad 2002? Help file solution doesn't cut it.

70577(PET.) Thanks TD2K for the info.Interested in that formula, or the principles behind it.I'm new in the business and my reference data base is not where I need it yet.

70577(petroleum) Answer is yes! Only on after stress relief are you not allowed to weld an attachment or anything else as allowed by ASME CODE.

Where can I find a chart or formula to calculate specific gravities for Petroleum oil and water at above 62 degrees. Specifically around 100 degrees?