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yes because if in service is above this temperature we will do the treatment in service .......???

operation service is above 1000ºF is the outlet of a hydrogen reformer , the design in the planes said that only need pwht in trunions 875ºC for 3 hours why?? i don´t understand it it could be because of stress concentrations in those points?? thanks a lot

and stress relief?

in the new revision of asme VIII is not necessary??

hi, we have to weld some pipes in this material, with pwht , in my opinion with 875ºc 3 hours is good what do you think? thaks

my problem is that i have to cut 104 tubes and i can´t purge all the system.....and we can´t use paper to purge because of plugging the tubes diameter 1 1/4"

my problema is that in other reparation of the equipment we have some problems with the purge so i´m looking foward another solutions. i think the problems were with the purge but il could be from a carburation layer of the material....

and anyone knows if asme code or b31.3 permit this kind of fluxes...i have to use it in a reformer hydrogen furnace at the pig tails in the outlet system...

hi, i have a problem i have to weld incoloy 800ht, but we have problems with purge so we want to use a backing but we have no interior access to the weld, one person talk to me about a paste backing to use someone knows something about this?? and someone knows something about tig wire with...

we have a furnace that works at 980ºc and 20 kg/cm2 internal pressure we use incoloy 800ht and sone materials like centraloy from Centracero , Spain

DOES ANYONE KNOW SOME PLACE IN SPAIN TO DO A GOOD COURSE ABOUT WELDING?????? THANKS

I am 25.I work in a petroleum refinery in Bilbao (Spain) in the Inspection and Corrosion Department. I started working two years ago.

could somebody help me???

I am a DEST (Diplôme d'Etudes Supérieures Techniques). I have studied in the Conservatoire National des arts et metiers. I am 25.I am working as a corrosion ,weldig and pressure vessel inspector but i want to improve.I´d would like to study more but I can´t leave my work.I´d like to study a...

we have an injection point of phosphoric ester in the bottom of goa stripper in a petroleum refinery.this point is made of hastelloy b-2 but it has been corroded in 3 years (thickness 8 mm).the tªinthe stream where the anticorrosive product is inyected is 320ºc and only is inyected when we...