STUDY FOR THE APPLICATION OF HIGH TENSILE STEEL (HT-100) TO PENSTOCK

Abstract

In Japan, the application of High Tensile steel superior to HT-80 to penstock has been hoped because of the reduction of construction cost. Therefore, the researches on higher tensile steel HT-100, which has the tensile strength more than 950N/mm², have been carried out in the electric power companies, the mills and the fabricators.
This paper describes the required properties, performance and suitability of the HT-100 plate and that weld joint for penstock, produced by the latest technique and based on the past researches and development.