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| cryogenic ferritic steel (【技】一种适合于低温条件下使用的低合金铁素体钢。在脆性转变温度以上使用。碳含量较低，铁素体晶粒度小，并要求导致脆性的磷、砷等有害杂质尽可能低，主要用于液体丙烷与丙烯、液氨等液化气的储存和输送装置；寒冷地带野外作业的设备和工程结构；一些冷冻、低温设备等。) | |||
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