Steel in Chinese / Japanese...

鋼 is the Chinese character and Japanese Kanji for steel (as in iron mixed with carbon and other elements to make it stronger).

This can also be the name Hagane in Japanese. Like Mr. Steel in English. It can also be pronounced as Tsuyoshi or Kou when used as a personal or given name in Japan.

百煉才成鋼 / 百煉纔成鋼 literally translates as: Only after much tempering is steel produced.

Figuratively, this means: True character must be tested in hardship.

This is a mild form of saying, “Whatever doesn't kill me, makes me stronger.”

武士の一言金鉄の如し is an old Japanese proverb about the value of the word of a warrior.

Here are a couple of versions of how this can be translated:

A warrior's single word is as unchanging and reliable as gold and steel.
A warrior's promise is as dependable as gold, and his [scabbard contains] untarnished steel (a sword).

Note: Sometimes this phrase is written as 男子の一言、金鉄の如し (danshi no ichigon kintetsu no gotoshi)

Note: Because this selection contains some special Japanese Hiragana characters, it should be written by a Japanese calligrapher.

磨鍊 is a form of discipline which suggests training of the mind and character, aimed at producing self-control, obedience, etc.

One of my Chinese-English dictionaries even translates this as “tempering oneself” or turning yourself into hardened steel.

In old Korean Hanja, they use these characters in reverse order but with the same meaning. If you want the Korean version, please click this link instead of the button above: Korean version.

鐵心 can be translated as “iron heart,” “steel core,” or “iron mind” in Chinese and Japanese Kanji.

This is not a common term, but I added it here since so many were looking for “iron heart.” This is almost like saying you are without emotions or feelings - a very stoic person. This is not a Buddhist trait.

鎧 is a simple way to write armor/armour in Chinese, Japanese Kanji, and old Korean Hanja.

This can also be Yoroi (a Japanese place name). It can also refer to mail as chain mail.

In modern Japanese, 真剣勝負 means to take something very seriously.

The literal and historical meaning is “real sword battle.” In old times, a Samurai apprentice would practice with a wooden practice sword. Once trained and qualified, they would wield a real steel sword made for battle and killing. They were ready for a “death match” or Shinken Shobu.

真剣 is an adjective that has come to mean serious/earnest. The literal translation is “real sword.”

勝負 in the simplest terms, means match, contest, game, or bout. Depending on the context, it could also mean victory or defeat, winning and losing, or the outcome of a battle.

There is a suggestion in Shinken Shobu that you train with serious and real intent, as we should train with the same fervor and dedication as if the battle was real. “Train as we fight.”

See Also:  The More We Sweat in Training the Less We Bleed in Battle | Cry in the Dojo - Laugh on the Battlefield