How do you say steel in Japanese?
— 鋼鉄 (こうてつ, kōtetsu); 鋼

Related synonyms for steel in Japanese
sword刀 (かたな, katana), 剣 (劍; つるぎ, tsurugi; けん, ken)
Generic synonyms for steel in Japanese
arm腕 (うで, udé)
metal金属 (きんぞく, kinzoku) (1), 金属製のもの (kinzokusei no mono) (2)
weapon武器 (ぶき, buki); 兵器 (へいき, heiki)
Terms within for steel in Japanese
ironアイロンをかける (airón wo kakéru)