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English Translations » 【静设备】 » Questions regarding low-temperature vessel materials

Questions regarding low-temperature vessel materials

2022-11-14View Original

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I have a question for the experts here: For low-temperature Class III pressure vessels, where the cylinder is made of Q345E and the nozzles are also made of Q345E, while the head is made of 16MnDR, and the joints are of type NPT1 with material 16MnIDIII, what standard and what material should be used for the round bars used to manufacture these joints? ?
Reply #22022-11-14
The fitting is NPT1 16MnIDIII, which refers to grade III forgings of 16MnD as specified in NB/T47009-2017, right?
Reply #32022-11-15
Use rods made of Q355NE or Q355NF, in accordance with the standard GB/T1591-2018
Reply #42022-11-15
Received, thank you! I think the same, but I’m not sure

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Translated at 2026-07-23 16:41:49

Original: https://bbs.hcbbs.com/thread-3578158-1-1.html

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