In the north, the ambient temperature can drop below minus 20°C – should low-temperature materials be used for the selection of pipes and containers in such conditions? Still low temperature and low stress?
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In the north, the ambient temperature can drop below minus 20°C. Is it necessary to use materials suitable for low temperatures when selecting materials for pipes and containers? Can ordinary carbon steel be used? What is the difference between low temperature and low stress, and low-temperature materials?
If there is no reliable insulation, the impact of ambient temperature should be taken into account
In normal continuous operation, the medium generates heat to compensate for the heat lost to the atmosphere, allowing the metal temperature to be estimated roughly; if operation is stopped, the equipment can be depressurized； For intermittent operation, the ambient temperature needs to be taken into account.