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Dear all, Sorry about my poor typing error, the correct parameters of the pipe are Outer diameter of the pipe is 650 mm, Inner diameter of the pipe 350 mm, The wall thickness of the pipe = 150 mm, The temperature of the outside surface is 570 degree C The temperature of the inner surface is 350...

I have a problem about thermal stress on a thick pipe, can anyone can give me a hand to sort it out. The dimension of the pipe: Outside diameter = 325mm Inside diameter = 350mm Wall thickness = 150mm Physical properties Outer surface temperature = 576 degreeC Inner surface temperature = 350...

Dear all, Can anyone provide some information about the water quality inside a boiler of a CCGT facility. Any good books and standards (British standard, German Standard....) refer to this area. What are the general parameters which defined the water quality? e.g. Oxygen content, pH, Silica...

Hi all Can anyone tell me what is the "Grade" in the ASME B31.3 stand for? And tell me how to find out the explanation for this code e.g. 45, 50, 55, B......... Any website or reference books Thank you so much Frederick Chan

Can anyone tell me how can I find out the physical properties of these materials?(steel or alloy steel, i guess?) 1)AVESTA 253 MA (Wear plate), 2)34 Cr Ni Mo (Guide roll), 3)steel 37 – 26 and 4)Z32 CN24 -13 I don't have any cluse about these special names? so please help. Thank you so much.

Is the design pressure p in British standard BS 5500:1994 in gauge pressure or absolute pressure?? From the equation e = pDi/(2f-p) A bit silly but want to make sure that............