Figure 4. Hardness Profile of Carburized Mild Steel using 65% Charcoal and 35% Cow-bone for 6 Hours at 900C

From

The Effect of Holding Time on the Hardness of Case Hardened Mild Steel

Ihom P. Aondona, Aniekan Offiong

Materials Science and Metallurgy Engineering. 2014, 2(3), 31-34 doi:10.12691/msme-2-3-1