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铁鋁錳炉用耐热鋼在我国还是发展不久的鋼种,它和鎳鉻耐热鋼相比,尽管目前还有某些不足之处,如寿命、抗氧化性和高温强度还差些,但它每吨鋼的成本比鎳鉻鋼降低3/4,而且更重要的是这种鋼的资源条件完全可以立足于国內,可以摆脫鎳鉻鋼系統。从第一拖拉机厂的生产实践表明,加稀土的铁鋁錳鋼基本能滿足使用要求,可大量代換鎳鉻炉用耐热鋼零件。本刊在这一期上特刊出有关文章两篇,供有关同志参考。
Ferromanganese furnace with heat-resistant steel in our country is still the rapid development of steel, nickel-chromium heat-resistant steel compared with it, although there are still some deficiencies, such as life expectancy, oxidation resistance and high temperature strength is still worse, However, its cost per tonne of steel is reduced by 3/4 compared with that of nickel-chromium steel, and more importantly, the resource conditions of this kind of steel can be completely based on the domestic and can get rid of the nickel-chromium steel system. From the first tractor factory production practice shows that the addition of rare earth iron-aluminum-manganese steel can basically meet the requirements, can replace a large number of nickel-chromium furnace with heat-resistant steel parts. This issue of special issue of two articles in this issue for the comrades for reference.