METHOD FOR ARC-WELDING GALVANIZED ULTRA-HIGH TENSILE STRENGTH STEEL

摘要

PROBLEM TO BE SOLVED: To provide a method for arc-welding a galvanized ultra-high tensile strength steel having a tensile strength of 1.2 GPa or more, which method can achieve high joining strength, and can reduce the dispersion of the joining strength.;SOLUTION: The galvanized ultra-high tensile strength steel is welded in such a manner that a penetration depth I in welding is 20% or more of the thickness L of the galvanized ultra-high tensile strength steel.;COPYRIGHT: (C)2008,JPO&INPIT