Question

plzz give me a perfect conclusion of iron pillar

Answer 1

The pillar has attracted the attention of archaeologists and materials scientistsbecause of its high resistance to corrosionand has been called a "testimony to the high level of skill achieved by the ancient Indian iron smiths in the extraction and processing of iron".[3][4] The corrosion resistance results from an even layer of crystalline iron hydrogen phosphate hydrate forming on the high-phosphorus-content iron, which serves to protect it from the effects of the Delhi climate.[3]
The pillar weighs over 6,000 kg (13,000 lb) and is thought to have been erected in what is now Udayagiri and reused by one of the Guptamonarchs in approximately 402 CE, though the precise date and location are a matter of dispute.[5]