Recent content by adrianviorel

Thanks, metengr! You're a life saver!

On a pressure vessel under ASME code, material A516 gr 60, hot spots for correcting some local deformation are allowed?

Marco, Even if it would have to be U stamped, you would have had the option of recertification, according to UG - 10 (if I remember correctly), that stipulates a material can be replaced with another one (according to other standards than ASME), provided that has, at least, same mechanical...

decreasing the voltage could be a good idea. However, you could need to move a little the position of the wire

strider6, it could be that our collegue is speaking about some furnace/boiler coils, subject to flue gas. It de-pends on the used combustibles.

Dear All, has anyone experience regarding welding of large titanium parts (argon protection, flow rates, special tools,etc)? Any help much appreciated.

Take into consideration AMM,LME prices are referring to important quantities, a lot of supplementary costs being added until the material reaches the end user. Right now, Mittal prices in Europe are somewhere in the range of 600 EUR/ton, for S235 JRG2. Any alloy element will raise the price ,as...

The simplest idea would be to consider that PED does accept ASME code, provided that some supplementary conditions are fulfilled. If you want to plunge into a comparative study, it will take you a lot of time, such things being reglemented by a whole set of rules (EN 297, EN473, etc), for each...

Dear Lsume, we had a lot of trouble using Gr 91 material. For me, it does not seem to be a good idea to use martensitic structure on pressure vessels, simply because such structure is mainly used for wear resistance...whatever! Moreover, welding of P91 requires a lot of attention regarding...

Try www.betabuzau.ro, PED certified

anyone can give me some tips about P91 fabrication (welding)?

Did you try a local heat treatment, for softening the material?

You're quite right, rmw. However, there are still several considerations to be made. Expansion joints are to be used in the situations when, from the very beginning, process designer tells us some dilatations (axial, angular, combined) are to be compensated. In such particular cases, pressures...

I do not think there are such numbers. Specifically, fermenation processes are depending on a large number of parameters. Moreover, this dependance is not linear, nor has a coherent allure. Therefore, the only literature that could help is, in my opinion, some research work. Try finding...

I think it's a matter of normality. When you start feeling an organ, no matter which, something is wrong. The human body "knows" the normal values of the internal parameters. It sounds the alarm only when the actual values are going out of the normal range. In other words: we "know" everything...