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Thank you, your contributions are very helpful. I believed that the main criteria in selection the piping material is internal corrosion, was I right? Chiheb Gouta M.Eng Mechanical

Experts, What are the most important criteria to be considered in the material selection procedure of sized pipes according to ASME B31.3 ? Chiheb Gouta M.Eng Mechanical

Thank you, I mean that is the type of element "S4R" is the best for this kind of simulation. Chiheb Gouta M.Eng Mechanical

Experts, I am simulating a hydraulic swelling test on a metal sheet of thickness 1 mm. why shall we use the type of element "S4R" for this kind of simulations ? Chiheb Gouta M.Eng Mechanical

Thank you! I searched a lot but I didn't get it! Chiheb Gouta M.Eng Mechanical

Thanks Ed. Can you give price index of A106 B, 317L and 6 Mo compared to 304L? Chiheb Gouta M.Eng Mechanical

Thank you, that's helpful. Chiheb Gouta M.Eng Mechanical

Experts, Can I apply the ASME B31.3 formula for calculation of pipe's wall thickness to Stainless Steel ? If yes, what is the allowable stress that I shall take ? Regards, Chiheb Gouta M.Eng Mechanical

Thank for your help Ed I want welded pipes, I want just to take an order of magnitude of the prices before selecting the supplier as I did not choose him yet. Chiheb Gouta M.Eng Mechanical

Yes I forgot 2205. Chiheb Gouta M.Eng Mechanical

Thanks Ed! I need to assess the prices for pipes selection ( from 16" to 24") of about 5000 ft. Chiheb Gouta M.Eng Mechanical

Experts, Can anyone provide me the approximative price range(US$/tonne) of the following stainless steel grades in the US : 304L 316L Lean Duplex 2101 Lean Duplex 2202 Super Duplex 2207 Regards, Chiheb Gouta M.Eng Mechanical

Thank you for your help. I have to assess the whole situation because I have some missing inputs. Chiheb Gouta M.Eng Mechanical

Thank you moltenmetal, yes I mean the corrosion service. Chiheb Gouta M.Eng Mechanical

Thack you Edstainless for your helpful advices. georgeverghese, a) yes max temperature is 35degC. b)the pipe is in a coastal location. c)18". d)we are dealing with gas free of any contaminant. Chiheb Gouta M.Eng Mechanical

Experts, Are mechanical engineers eligible to handle the material selection issues within an EPC? As a Mech.Eng, I am facing a lot of problems dealing with material issues, what shall I do ? and what the company have to do ? Thank you in advance. Regards, Chiheb Gouta M.Eng Mechanical

Thank you EdStainless. I am sorry if the question looks evident but I am inexperienced in this field and I hope to learn more. Sometimes when I face new issues I look to the quick solution but I have to take to time lean and to resolve it. Chiheb Gouta M.Eng Mechanical

Experts, As we know, there are several grades of stainless steel (304/04L; 16/316L, Duplex 2205, Superduplex 2207...). How can I choose the right stainless steel for a specific application? My problem is: I have a water flow (water & gas) (production unit piping) flow with CO2 content 5% in the...

Experts, We have to select the materials of an Amine Unit removing CO2 (Up to 80% removal) from the following gas: Feed Gas composition: H2O : 0.18 mol% CO2 : 16.51 mol% CO : 2.41 mol% N2 : 0.30 mol% H2 : 74.79 mol% C1 : 5.81 mol% Total: 100 mol% Amine Used: DEDA+MDEA+water How can I assess...

thank you for your advices.