Mr.Metengr,
Pls advice how control and monitoring 'the temperature fell below the austenitizing temperatur range' during hot forming to make sure no need normalizing and what's mechanical testing to confirm no changing mechanical properties for hot forming? Isn't it tensile and impact testing...
Dear mr.Metengr,
Thanks so much for your advice.pls help to provide code requirement as your mention for further information.
Do we need stress relieve for hot forming?is it better than without any heat treatment after hot forming.
Regards,
Johny
Dear Mr.Metengr
the presure vessel is designed as per ASME XIII Div 2, I have checked code but this is not required normalised after hot forming (matterial for construction: 516 grade 70 N.
regrads,
John
Dear Sirs,
I am doing review specification for high pressure vesels ((thicknes above 150mm), in the spec mention that the subsubsequce normalised is requiered after hot forming event the base plate already done normalised. I dont agree with that due to double normalised, it to be exspensive and...
Dear Gents,
could you pls advice
1. Do we need require separately stress relive after head hot forming of vessels
2. Which is best separately heat treatment require after hot forming
3. Is it necessary separately normolization after hot forming if base plate has been normolise.
Regards,
Johny
