Which statement concerning wrought iron is inaccurate?
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Answer: E. It is made by adding suitable percent¬age of carbon to molten iron and subjecting the product to repeated hammering and rolling
Explanation
Wrought iron is produced through refining and puddling processes, not by adding carbon to molten cast iron. The incorrect statement claims wrought iron is made by adding carbon and hammering cast iron, which is false. Traditional production involves slag inclusions and low carbon refinement rather than carburizing cast iron. Wrought iron is a semi-fused iron product containing fibrous silicate slag inclusions that provide corrosion resistance. Carbon content in wrought iron is extremely low, typically remaining well below zero point two five percent. Historically, puddling furnaces were used to burn impurities out of pig iron to manufacture wrought iron.
Containing carbon between zero and zero point two five percent is an accurate statement regarding wrought iron composition. Melting at high temperatures near fifteen hundred thirty-five degrees Celsius correctly describes pure iron melting behavior. Being very soft, ductile, and easily forge welded are true mechanical characteristics of quality wrought iron.
- Subject
- Engineering
- Category
- Mechanical Engineering
- Topic
- —
- Difficulty
- medium
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