Seeking expert advice: What are the differences between American and European standard gate valves?
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May I ask the experts: what is the difference between Z61Y CL1500 A182 F321 and Z61Y-160I DN20, which are both molybdenum-lined steels? What do A182 and F321 mean? What is the difference from what Z61Y-160I represents? Can the gate valve Z61Y CL1500 A182 F321 replace the Z61Y-160I DN20 valve made of molybdenum alloy?
F321 is an ASTM standard designation; it is a chromium-nickel-molybdenum stainless steel. In the national standard’s naming system, the letter ‘i’ in Z61Y-160I refers to C5 chromium-molybdenum steel. I won’t go into detail regarding the differences in their chemical compositions; both are high-temperature steels. The theoretical operating temperature for F321 is 800°C, while that for C5 is 650°C. F321 can completely replace C5, although it is much more expensive.
I don’t know; I’m not familiar with this. The original poster had better refer to the answers above. I’ve also studied * it
A182 is a standard number that indicates the steel is forged. F321 is chromium-nickel-titanium steel; the others are as mentioned above
The forum didn’t remind me that a expert had replied to my post! Thank you so much! I know a bit about European standards, but I’m not able to tell apart the grades for American standards – they seem familiar yet unclear to me! Thank you again! ! !