鋼鐵在400℃以上氧化性氣氛中往往會有高溫氧化問題，本文是耐高溫(400~650℃)氧化低合金鋼（總合金元素含量≦12%）的開發之現況分析報告。內容包括文獻探討、目前發展現況與未來國內可能發展的方向。從高溫氧化的發展沿革、Fe-O平衡相圖、氧化機構與動力、合金元素與生產製程對氧化的影響，進行目前發展現況分析，最後對耐高溫氧化低合金鋼的發展提出Cr-Mo低合金鋼的建議。

High temperature oxidation problem often occurs when steels are exposed to an oxidizing atmosphere above 400℃. This is a status report of development of high temperature (400-650℃) oxidation resistant low alloy steels (with total alloying elements≦12%). The contents include literature survey, present status of development, and possible domestic future prospect. Starting from the history of high temperature oxidation study, Fe-O equilibrium phase diagram, oxidation mechanism and kinetics, effects of alloying elements and manufacturing process on the oxidation, the analysis of the present status of development was performed. Finally, Cr-Mo low alloy steels are proposed to develop as high temperature oxidation resistant low alloy steels.