Which of the following percent of carbon is correct for Eutectoid steel (at 723^oC in Fe3-C diag)?(a) 0.05%(b) 0.5%(c) 0.6%(d) 0.8%I got this question in unit test.The above asked question is from Mold Materials in chapter Molding and Core Sands of Casting-Forming-Welding I

Which of the following percent of carbon is correct for Eutectoid stee

1.	Which of the following percent of carbon is correct for Eutectoid steel (at 723^oC in Fe3-C diag)?(a) 0.05%(b) 0.5%(c) 0.6%(d) 0.8%I got this question in unit test.The above asked question is from Mold Materials in chapter Molding and Core Sands of Casting-Forming-Welding I
Answer» Right choice is (d) 0.8% To explain I WOULD SAY: At 723^oC in Fe3C diagram the TRANSFORMATION change takes place. The CARBON content at this point is 0.8% and is called as eutectoid STEEL.

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Which of the following percent of carbon is correct for Eutectoid steel (at 723^oC in Fe3-C diag)?(a) 0.05%(b) 0.5%(c) 0.6%(d) 0.8%I got this question in unit test.The above asked question is from Mold Materials in chapter Molding and Core Sands of Casting-Forming-Welding I

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