Ferritic steels are susceptible to 475¬¨¬®‚Äö√†√ªC embrittlement when chromium exceeds _________$

Ferritic steels are susceptible to 475¬¨¬®‚Äö√†√ªC embr

1.	Ferritic steels are susceptible to 475¬¨¬®‚Äö√†√ªC embrittlement when chromium exceeds _________$
A.	2%
B.	5%
C.	13%
D.	15%
Answer» D. 15%