CHANDRAGUPTA
7î7
The Iron Pillar in Delhi, India is made of wrought iron, not rock. It is known for its high corrosion resistance due to the composition of the iron used and the weathering process it underwent.
Imperial Gupta Dynasty......in 4th century.......
asoka
This is not pure iron but a special steel.
Effect of acid rain on Iron Pillar of Qutub Minar is- When acid rain falls on the Iron Pillar the colour of Iron Pillar changes from red to black. Other factors like pollution and dust are also responsible. The government should take some strict actions on this issue.
to protectit
it was built by adil shah
emperor ashoka
asoka
The Ashoka pillar, made of wrought iron, remains rust-free due to the absence of impurities like sulfur and phosphorous in the iron, and the protective layer of iron oxide that forms on its surface, preventing further corrosion. Additionally, the pillar's composition and environmental conditions at the site of its installation help in its preservation.
it weighs about 6 tons