Electron beam welding property is superior the steel null for structure

摘要

PURPOSE: To provide a steel for structure excellent in electron beam weldability. ;CONSTITUTION: The objective steel for structure is constituted of a compsn. contg. as essential components, 0.04 to 0.13% C, 0.05 to 0.45% Si, 0.6 to 1.7% Mn, ≤0.007% P, ≤0.005% S, 0.004% Al, 0.005 to 0.020% Ti and 0.0035 to 0.0070% N and contg., at need, one or ≥ two kinds among the elemental group for improving its strength of Cu, Ni, Cr, Mo, Nb and V. This steel has good toughness by electron beam welding, laser beam welding and flash butt welding.;COPYRIGHT: (C)1993,JPO&Japio