Search results for query: *

in this case the allowable stress is not important and only heat resistant and corrosion resistans should be take into account.

thank you all my friends .the problem is that we used 304 ss instead of 409ss wrongly in casing panels of hrsg system and changing will cost much. so i wanted to assure myself that it will not cause problem.

thank you dear metalguy.I don't know exactly the analysis , but the environment is the exaust gas from gas turbine.In ASM handbook it is noted that the maximum service temperature in air for continuous service for 304 ss is 925 centigrade degree. does it mean that it is not sesitized in this...

I woud like to know if we can use 304 stainless steel instead of 409 in 700 centigrade degree.

thank you dear metenger for your good help,but in this situation what should we do about the heat treatment time?

base on ASME secI PW.39 when pressure parts of two different P No. groups are joind by welding , the postweld heat treatment temperature is controlled by the higher P number and when nonpreassure parts are welded to pressure parts , the postweld heat treatment temperature of the pressure parts...