Maximum percentage of carbon in ferrite is
A
0.025%
B
0.06%
C
0.1%
D
0.25%
Correct Answer: 0.025%
Below 912°C (1,674°F) iron again adopts the BCC structure characteristic of α-iron, also called ferrite.The substance assumes a paramagnetic property. Carbon dissolves poorly in α-iron: no more than 0.021% by mass at 723°C