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Anonymous Poster

Alternate Equivalent Material for 253MA

07/17/2009 6:50 AM

In one of our waste heat recovery coils in Ammonia plant, ferrules fitted in tubesheet to support coils are of 253MA material. ( 5"NB, 3mmthk welded pipe ).

Can any body suggest me FUNCTIONALLY EQUIVALENT alternate material FOR THE APPLICATION ?

Operating temp. in the zone is 675 to 700 deg.celcius ( design temp of the coil is 700 deg. celcius. )
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PWSlack
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#1

Re: alternate equivalent material for 253MA

07/17/2009 7:29 AM

And the pressure? And what's in the pipe?

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