Piping and Valves Knowledge: [Question of the Day] 10-12-15
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This post was last edited by security on 2010-12-16 07:44. The value after PN corresponds to the pressure resistance of the material under _____ (in Bar), but without any units. The nominal pressure can also be expressed using the term “Class” (in the American system). The value following Class indicates the pressure-bearing capacity of carbon steel at _____ (in Psi): A. Room temperature, 20°C B. 20°C, 35°C C. Room temperature, 454°C D. 20°C, 20°C. 1) All participants will receive a reward ； :) :victory: 2) Please hide your replies; the method for doing this is: http://bbs.hcbbs.com/thread-492556-1-1.html. Do not edit the replies after posting them. 3) Answer: Answer: C. Refer to the Implementation Guidelines for GB/T 20801-2006 \"Code for Pressure Piping – Industrial Piping\"
This post was last edited by 000123a on 2010-12-15 11:23: C at room temperature, 454℃