4 Old HSK word(s): ☊钢笔 ** A ☊钢 ** B ☊钢材 ** D ☊钢琴 ** D
百炼成钢* * 不锈钢* * 首钢* * 轧钢* *

Definitions from Unihan Copyright © 1991-2015 Unicode® Inc. All rights reserved.

轧 crush by weight / grind
钢 steel / hard, strong, tough

Hsk Characters: 钢 *
HSK -Characters and beyond:
GbBig5EngRadMegaTripleMultilingual
钢 94A2 + 鋼 + + steel / hard, strong, tough 金,钅 冈 Gold (Metal) 冈 (KAMM) 【◎Fix:◎gang1;◎gang4】 +

Korean:

鋼 + 钢 강철 강 (강철: steel)
2 NHSK word(s): 弹钢琴* 4 tan2 gang1 qin2play the piano 钢铁* 5 gang1 tie3steel
KOREAN6000 word(s):
2 KOREAN 2500 New HSK words):
钢铁 + gāngtiě 강과 철. gang-gwa cheol.
弹钢琴 + tángāngqín 피아노를 치다. pianoleul chida.
0 KOREAN Sentence(s):