鋼(はがね)

はがね
noun
steel
1. steel
Steel — an alloy of iron and carbon. Used literally for the material and figuratively to describe something strong and unyielding.
This kitchen knife is made of steel.
He overcame the difficulty with a will of steel.
日本刀(にほんとう)は鋼(はがね)を何度(なんど)も折(お)り重(かさ)ねて鍛(きた)えることで、鋭(するど)い切(き)れ味(あじ)が生(う)まれる。
Japanese swords achieve their sharp cutting edge by repeatedly folding and forging steel.

The native Japanese word for steel. Also read as こう in Sino-Japanese compounds like 鉄鋼(てっこう) (iron and steel).

Usage

鋼(はがね)のような~ (like steel) is used to describe exceptional strength or toughness: 鋼(はがね)のような意志(いし) (iron will), 鋼(はがね)のような肉体(にくたい) (body of steel).

Common collocations

Well known from the manga title 鋼(はがね)の錬金術師(れんきんじゅつし) (Fullmetal Alchemist).