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１前言２．２５Ｃｒ—１Ｍｏ钢制的热壁加氢反应器在使用过程中材质的回火脆化是不可避免的，这种材质劣化现象主要表现为材料的脆性、塑性转变温度向高温区移动。为了降低材料的回火脆化敏感性，可在反应器的制造过程中，严格控制有害杂质元素Ｓｎ、Ｓｂ、Ａｓ等的含量。...
1 Preface 2.25Cr-1Mo steel hot-wall hydrogenation reactor in the course of the material tempering embrittlement is inevitable, the material deterioration is mainly manifested as brittleness of the material, the plastic transition temperature to move to high temperature . In order to reduce the temper embrittlement susceptibility of the material, the content of Sn, Sb, As and other harmful elements can be strictly controlled in the reactor manufacturing process. ...