Metallurgical Principles and Practice of Engineering (PE) Study Guide: Question #13

It Is the Policy of The Minerals, Metals & Materials Society (TMS) to Encourage the Professional Registration of Metallurgical Engineers.
BCC is Body Centered Cubic
FCC is Face Centered Cubic
BCT is Body Centered Tetragonal

The tempering operation of quench-hardened high carbon steel components requiring 58+/- 2 HRC (Rockwell hardness) changes the crystal structure from:

(A)	BCC to FCC
(B)	BCT to FCC
(C)	FCC to BCC
(D)	BCT to BCC

The information on this page is maintained by the Nellie Luther (natale@tms.org).

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