At what temperature does iron melt?

pu1. The melting temperature of iron is about 1500 degrees

2017-12-26

OK

pu2. To be exact, the melting point of iron is 1,53785 degrees Celsius. You have to heat it up to make it green

2017-12-26

OK

pu3. The melting point of iron is over 1,500 degrees, but pure iron melts better at room temperature than expected. Iron was available thousands of years ago, but the reason why railroads began in earnest in the 1920s was that pure iron melts even at room temperature, so the railroads did not work properly. After making iron alloys, this problem was solved, and the railroad era was opened by making railroads in earnestly.

2017-12-26

OK