Civil Engineering - Building Materials - Discussion

Discussion Forum : Building Materials - Section 7 (Q.No. 2)
2.
Red short iron cracks when bent due to the presence of
sulphur
carbon
phosphorus
silicon.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
8 comments Page 1 of 1.

Subhakanta Swain said:   5 years ago
Red hot iron is otherwise know as hot metal (product from blast furnace) impurities in hot metal are:

Silica-imparts non-homoginity.
Carbon-brittleness.
Sulphur-surface cracks.

Sumit Vishwakarma said:   5 years ago
Red-short, hot-short refers to brittleness of steels at red-hot temperatures. It is often caused by high sulfur levels, in which case it is also known as sulfur embrittlement.
(1)

Krishna kumar said:   6 years ago
Red hot iron bend due to sulphur. When the iron is heated above it becomes red hot so the name given. At this temperature, it becomes malleable but due sulphur it becomes brittle & forms cracks due to grain heat concentration.

Mmmm said:   6 years ago
Please clarify it.

KRISHNA said:   6 years ago
RED HOT IRON means?

Indhu said:   7 years ago
This is due to the sulfur forming iron sulfide/iron mixtures in the grain boundaries of the metal which have a lower melting point than the steel.

Lippun Sa said:   8 years ago
Please give the answer clearly.

Anil paswan said:   8 years ago
What is red iron?

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