HG/T20585 standard
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Standard HG/T20585 applies to low-temperature pressure vessels made of carbon steel, low-alloy steel, and high-manganese alloy steel with a design temperature below -20°C, as well as low-temperature pressure vessels made of austenitic stainless steel with a design temperature below 196°C. Do containers designed for a temperature of -60°C and at atmospheric pressure need to comply with this standard? Material 09MnNiDR
It’s not necessary; NB/T47003.1 can be chosen instead
Okay, thank you! By the way, if the medium is highly hazardous, is 100% RT required?
This post was last edited by wanlirn on 2021-11-26 at 15:48. If the hazard level is high, standard NB/T47003.1 cannot be used; instead, GB150 must be applied. Therefore, 100% RT testing is essential. For low-temperature vessels operating at atmospheric pressure, using stainless steel is the most cost-effective option; using 09MnNiDR would be a waste