As the amount of carbon in steel increases, its ___________ decreases.(a) range of heat treatment(b) toughness(c) ultimate strength(d) hardnessI have been asked this question during an interview.This intriguing question originated from Properties of Steel and its Alloys topic in division Steel and its Alloys of Aerospace Materials & Processes

As the amount of carbon in steel increases, its ___________ decreases.

1.	As the amount of carbon in steel increases, its ___________ decreases.(a) range of heat treatment(b) toughness(c) ultimate strength(d) hardnessI have been asked this question during an interview.This intriguing question originated from Properties of Steel and its Alloys topic in division Steel and its Alloys of Aerospace Materials & Processes
Answer» Correct answer is (b) toughness Easiest explanation: Carbon COMBINES readily with iron and is a very important COMPONENT of steel. As the amount of carbon in a SUBSTANCE increases, its toughness DECREASES. Ultimate STRENGTH, hardness and range of heat treatment increase.

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