鋼材節減を目的とする高力鋼の研究

概要

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Increase of the iron and steel production is to-day cried out everywhere and a number of researches are carried on answering thereto. However, a study of saving steel material, which has the meaning equal to the production increase, has not satisfactorily performed. The author has continued the fundamental research relating thereto for the past few years, of which the summary is as follows : For saving steel material it is best to make and utilize a high strength steel and to economize the consumption of the steel material specified by the current municipal building restrictions. The so-called high strength steel does not necessarily mean a high tensile steel, but a material of high yield point and high yield ratio. Following the author's cooperative research with some architect, it was understood that doubling the yield point of steel might save half the consumption of the material. Favorable elements for enhancing the yield point are Si, Cu, P, Ni, etc. However, considering from the viewpoint of their combinations and their resources, Mn and Cr have some prevalence. As the most promising high strength steel at the present the author preferred to mention of Cu-Ni and Mn-P steel. Copper-bearing steel with 0.8∿1.0% Cu reveals remarkable superiority in yield point and yield ratio, deserving the name of high strength steel. However, it is liable to suffer cracks in high temperature working, and needs to and about 0.3% Ni for the prevention. Resources of copper may be found in pyrite cinder, and that of nickel in nickel-senpentines from Oyeyama in Tamba, Ohsima in Wakasa, Ohmiya in Nagano, etc. Utilizing the aforementioned domestic resources favorably steels containing 0.8∿1.0% Cu and 0.3% Ni easily might be produced and saving of 60∿70% as much as the heretofore structural steel consumption would be actually possible.
社団法人日本鉄鋼協会の論文
1944-03-25

著者

藤原唯義
日本鋼管會社技術研究所

鋼材節減を目的とする高力鋼の研究

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