Tatsumi Kimura

Heavy-wall structural steel and method

Method for producing high strength thick steel plate excellent in toughness in extra-high heat input welded-heat affected part

Pearlite steel rail of high internal hardness type excellent in wear resistance and fatigue failure resistance and process for production of the same

Internal high hardness type pearlitic rail with excellent wear resistance and rolling contact fatigue resistance and method for producing same

Method for manufacturing thick steel plate with low yield ratio and high tension superior in toughness at heat-affected zone in super heavy-heat-input welding

Corrosion resistant steel materials

Atmospheric corrosion resistant steel product

Linear shape steel excellent in joint fatigue characteristics and production method therefor

Hot-rolled shape steel for crude oil tanks and process for manufacturing the same

High-strength pearlitic steel rail having excellent delayed fracture properties