Plain carbon-iron alloys with a higher than 2.1% carbon content are known as _____________(a) coke iron(b) wrought iron(c) cast iron(d) pig ironI have been asked this question during an online interview.Enquiry is from Steel and Iron Work topic in division Rules and Methods of Measurement of Civil Engineering Drawing

Plain carbon-iron alloys with a higher than 2.1% carbon content are kn

1.	Plain carbon-iron alloys with a higher than 2.1% carbon content are known as _____________(a) coke iron(b) wrought iron(c) cast iron(d) pig ironI have been asked this question during an online interview.Enquiry is from Steel and Iron Work topic in division Rules and Methods of Measurement of Civil Engineering Drawing
Answer» Correct option is (c) cast iron To explain: With MODERN STEELMAKING techniques such as powder metal forming, it is possible to make very high-carbon (and other alloy material) steels, but such are not COMMON. Cast iron is not MALLEABLE even when hot, but it can be formed by casting as it has a lower melting point than steel and GOOD cast ability properties. Certain compositions of cast iron, while retaining the economies of melting and casting, can be heat treated after casting to make malleable iron or ductile iron objects.

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