WELDED STRUCTURAL MEMBER FOR INNER SHELL OF LNG STORAGE TANK USING HIGH MANGANESE STEEL AND MANUFACTURING METHOD OF THE SAME

摘要

The present invention relates to a welded structural member capable of suppressing welding defects such as pore defects, surface defects and cracks, which frequently occur during butt horizontal welding for manufacturing an inner shell of an LNG storage tank using high manganese steel, and a method for manufacturing the same it's about