N1Beta162 of 123216 strokes鋼 means steelMetal strong: steel.On'yomiコウkouKun'yomiはがねhaganeHow it's built Play strokes金metal岡Common words鋼板こうはんsteel sheet; steel plate鋼はがねsteel粗鋼そこうcrude steel鉄鋼てっこうiron and steel