Steel obtained Te cowpea to the method and this method of hydrogen embrittlement prevention steel

摘要

PURPOSE:To effectively prevent permeation of hydrogen into steel and to enhance a hydrogen sulfide shielding property by coating the surface of steel materials with a primer coating layer consisting of a resin contg. a vanadium oxide and/or molybdenum oxide and a finish coating layer consisting of a compsn. contg. a copper oxide. CONSTITUTION:The surface of the steel materials is coated with the primer coating layer consisting of the resin compsn. contg. 1-500 pts.wt. vanadium oxide expressed by VOX (where X is 1.5-2.5) and/or MoOy (where y is 2-3) per 100 pts.wt. solid content of the resin and the finish coating layer consisting of the resin compsn. contg. 1-500 pts.wt. copper oxide per 100 pts.wt. solid content of the resin. As a result, the coated film exhibits an excellent effect of improving the hydrogen sulfide shielding property and preventing the permeation of hydrogen into the steel.