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Low temperature restrictions on the use of materials

2009-02-03View Original

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Please give advice! 1. The materials in National Standard 150 have low-temperature impact test temperatures. When the operating temperature is lower than -20 degrees, can 16MnR, and 20R steel plates be used? 2. What is the lower limit of the operating temperature of steel plates? For example, can 16MnR steel plates be used at -40 degrees?
Reply #22009-02-03
It cannot be used under normal circumstances. Under low temperature and low stress conditions, the ambient temperature is -40 degrees, and the design temperature can be adjusted upward. At this time, 16MnR steel plates can be used
Reply #32009-02-03
It cannot be used. If the temperature is below -20°, 16MnRD can be used.

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Translated at 2026-07-28 06:14:40

Original: https://bbs.hcbbs.com/thread-381496-1-1.html

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