The Never Rusted Iron Pillar - Marvalous of Ancient Hindus

● It is known as Vishnu stambh, made up of mix metals but 98% of iron.

● Originally built by Chandragupta vikramaditya, from gupta dynasty in 4 th century near udayagiri, MP.

● His kingdom was full fledged in various metals. later in 13 century illtutmush attacked the region and got this iron pillar to place it in Qutub Minar.

● For more interesting details read the book-

● For the last 1600 years, the rustless wonder called the Iron Pillar of India, near the Qutub Minar at Mehrauli in Delhi.

● The pillar, made up of nearly seven tones of 98 per cent wrought iron of pure quality, is 7.21 m (23 feet 8 inches) high, with 93 cm buried below the present floor level, and has a diameter of 41 cm (16 inches).

● A team at the Archaeological Survey of India, also came to the conclusion that the pillar was not cast, but fabricated by forging and hammer-welding lumps of hot pasty iron, weighing 20 to 30 kg, in a step-by-step process.

● The surface of the pillar retains marks of hammer bows. It is assumed that 120 labourers took a fortnight to complete this daunting task.

● Experts at the Indian Institute of Technology, Kanpur, believe that the relatively pure composition of the iron used, presence of high amounts of phosphorus (as much as 1 per cent against less than 0.05 per cent in today's iron) and absence of sulphur/magnesium in the iron are the main reasons for its longevity.

● A thin layer of 'misawite' (formed catalytically by the presence of phosphorous in the iron), a compound of iron, oxygen and hydrogen, has also protected the pillar.

● This is a demonstration of the high degree of accomplishment in the art of steel making by ancient Indian steel makers.

● It has been claimed that the Indians were the only non-European people who manufactured heavy forged pieces of steel and the pieces were of the size that the European smiths did not learn to make more than 1000 years later.


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