Pressure Vessels

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zahirazam2009 Active Contributor Join Date: Oct 2013 Location: CHENNAI, India. Posts: 13	Pressure Vessels 11/27/2013 11:38 PM
	if there is vessel operating at cryogenic temperature we go for stainless steel for the vessel but what should be the material for it's skirt support and anchor bolts???? will it be same i.e. stainless steel.. the height of the skirt support is around 2-3 m __________________ Attitude is the little thing that makes a big difference!!
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Anonymous Poster #1	#1 Re: pressure vessels 11/28/2013 12:24 AM
	zahirazam2009, There are different stainless steel category according to stainless steel microstructure. So, decide which 'stainless steel' you are planning to select for cryogenic temperature service.
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lyn Guru Join Date: Oct 2008 Posts: 42355 Good Answers: 1693	#2 Re: Pressure Vessels 11/28/2013 9:59 AM
	My advice to you, since you do not know what material to use, is to: 1. Err on the side of caution and use the same grade of corrosion resistant steel for the skirt, and the closest corrosion resistant steel hardware you can find. 2. Hire someone who knows how to select materials of construction, or purchase the applicable standards and read them. Choosing a material for a pressure vessel based of the advice of unknown strangers could get you in trouble, when the vessel explodes. "Someone on CR4 told me to use it" will not be a strong defense in court.
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PWSlack Guru Join Date: Jan 2007 Location: In the bothy, 7 chains down the line from Dodman's Lane level crossing, in the nation formerly known as Great Britain. Kettle's on. Posts: 32175 Good Answers: 839	#3 Re: Pressure Vessels 11/28/2013 12:48 PM
	The first person to ask, obviously, would be the Engineer/Surveyor for the company that is to provide burst and collapse indemnity insurance cover for it. And the really great thing is, IT'S JUST A PHONE CALL! Have the fluid, its temperature range and its pressure range to hand though, as "cryogenic" could mean liquid carbon dioxide, or it could mean liquid helium. And one wouldn't want to select the wrong materials.... __________________ "Did you get my e-mail?" - "The biggest problem in communication is the illusion that it has taken place" - George Bernard Shaw, 1856
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manzoor ahmad tarafdar Active Contributor Join Date: Jul 2011 Posts: 17	#4 Re: Pressure Vessels 11/29/2013 10:27 AM
	No,for all cryogenic service you don't go for SS.As for example ammonia at -33⁰c can be stored in CS made storage tank.Material of construction depends not on temp. only ,it depends on fluid handled also. Tarafdar
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lyn Guru Join Date: Oct 2008 Posts: 42355 Good Answers: 1693	#5 In reply to #4 Re: Pressure Vessels 11/29/2013 10:32 AM
	You did not answer the question. Stainless steel has already been selected.
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Anonymous Poster (1); lyn (2); manzoor ahmad tarafdar (1); PWSlack (1)

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