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GBY系列濃硫酸液下泵專用鋼鐵大量應(yīng)用于80~****的硫酸,溫度可達60-80℃。鋼鐵在這一濃度和溫度范圍的硫酸中,表面能產(chǎn)生保護性的硫酸鐵膜層。鑄鐵不適用于超過****的發(fā)煙硫酸,可能是由于三氧化硫與鐵中所含的硅反應(yīng),使鑄鐵變脆。碳鋼不適用于100~102%的發(fā)煙硫酸,超過102%的酸則...

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