THE RESEARCH FOR QUALITY OF THE STRUCTURAL STEEL FOR BUILDING CONSTRUCTION

Abstract

The products of each domestic structural steel makers may vary in the property and chemical composition. In this research paper, data of products actually used in a project were collected from inspection certificates received from suppliers. The chemical elements and mechanical properties of each product were categorized and statistical methods were taken to find out the distributions within the parameters specified in Japanese Industrial Standard (JIS). Our research showed that the chemical elements and mechanical properties of products of each plant were met by the standards defined in JIS with some differences in the form of statistical distributions in the results of each plant.