Abstract
In making quantitative analysis of Cu, Si, Mn, Cr, Ni in cast iron, of Cu, Si, Mn, Cr, Ni, Mo in stainless steel and of Cu, Si, Mn, Cr, Ni Mo, W, V, Co in high speed steel, the quantometer analysis was found to be satisfactory the from various points of view. By the conventional method of spectrographic analysis, it has been found very difficult to make precise quantitative analysis of Cr, Ni, W, Co, etc., but with the photoelectic photometry system of the quantometer these could be analysed with comparatively high accuracy. The samples were standardized cast iron and high alloy steels on market, because there is not any standardized samples in high alloy steel on market. The conditions of analysis such as of spark have been almost the same as in case of low alloy steels, but it was necessary to calibrate the readings in high alloy steel owing to the different contents of Fe of internal standard line, but this calibration was made easily. In the case of cast iron and stainless steel, the analysis was achieved within the standard deviation of 1 to 3%, and the unfavourable results were found in high speed steel. This is supposed to indicate the influence of the history of the specimen.
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