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Hi guys, now I confront materials selection issue. We storage raw material in tank,(attacment is the raw materials data) and material of construction for the tank is SA516 70 & SA537 CL1. Now we are going to purchase new vendor raw materials, but the water content up to 50ppm and Olefins is...

Hi Cococa, Depending on my experience, visual inspection for FRP equipment is best and effective way to assure the equipment integrity, of course, it's better to do inspection by relative expertise. normally, spark test is also a good method to evaluate the integrity, but if you do in service...

sorry guys, it is glass lined equipment.

Dear all, we select FRP equipment working in nitration process, and some failure occured during operation, especially for flange face and agitator part.so, does anyone have relative practical experience about this kind of equipment in nitration process? is it necessay to update materials to...

Thanks for your reply. Depending on yIour interpretation, IGA test is used to confirm heat treatment condition, and I agree with that. But why IGA test result of 904l is so difference to C276? Whether it means C276 contain more delepted region adjacent to grain boundary, if so, why?

Dear all, We do intergranular corrosion test for C276 according to G 28A method, ASM handbook provide data of criteria for passing is 1mm/month. But I check 904l IGC criteria for passing is 0.05mm/month, and both materials are implemented in the same test method. So, comparing C276 to 904l IGC...

Hey all, Directly jioning in my company after graduate with engineering master degree, and my company is leading position in own field, and my functional unit is growing state. I have been through some project, but my job is mostly for focusing on "seeing" others work, less project or parts I...

normally, manufacturing process follow relative fabrication and inspection codes & standards. so choosing appropriate NDT method and proportion is up to ASME or owener specification. and if have some special case, such as due to design or materials issue, we can add more strigent inspection...