GB/T 31939-2015
ActiveHot-rolled steel plates (sheets) and strips for coal mine refuge chamber
矿用救生舱用热轧钢板和钢带
Application Summary AI generated
This standard specifies the technical requirements, dimensions, and testing methods for hot-rolled steel plates, sheets, and strips used in the construction of coal mine refuge chambers. It ensures the steel possesses sufficient strength, toughness, and impact resistance to withstand underground mining conditions, including potential rock bursts and explosions. The standard is applied by steel manufacturers and mining equipment producers in China to guarantee the structural integrity and safety of refuge chambers designed to protect miners during emergencies.
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Transparency note: The application summary and key sentences on this page were automatically generated by AI from the standard's original text. This content has not been human-verified and should not be used for compliance or regulatory purposes. Always refer to the official standard document from the issuing authority.