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随着我国工业生产的飞跃发展,电炉生产亦随之发展,这就对炉用耐热钢的数量和品种提出更多和更高的要求。 过去几年,我国有关电炉厂所使用的耐热钢,主要多是高镍铬合金钢(Cr18Ni25Si2)。近几年来,有关单位研究了不含镍(或少含镍)的铬锰氮系炉用耐热钢,它比较满意地用做炉用耐热构件。但是,这种耐热钢仍需要低碳铬铁、含氮铬铁等稀缺铁合金。而铝锰硅、铁
With the rapid development of industrial production in our country, the development of electric furnace has also been followed. This puts forward more and higher requirements on the quantity and variety of heat-resistant steel for furnaces. Over the past few years, China’s electric furnace plant used in heat-resistant steel, mostly high-nickel-chromium alloy steel (Cr18Ni25Si2). In recent years, the relevant units of non-nickel (or less nickel) chromium manganese nitrogen furnace heat-resistant steel, which is more satisfactory for use as furnace heat-resistant components. However, such heat-resistant steels still require scarce iron alloys such as low-carbon ferrochrome and nitrogen-containing ferrochromium. The aluminum manganese silicon, iron