melting and refining periods, the slag and steel are poured from the furnace by tilting. The production of steel in an EAF is a batch process. Cycles, or heats, range from about. 1-1/2 to 5 hours to produce carbon steel and from 5 to 10 hours or more to produce alloy steel.
Quick Answer. The average human head weighs 10 to 11 pounds. That is about 8 percent of the weight of a human body. The average adult human brain only weighs about 3 pounds, so most of the weight in the head consists of the skull and other fluids. Continue Reading.
Olmec colossal heads vary in height from 1.47 to 3.4 metres (4.8 to 11.2 ft) and weigh between 6 and 50 tons. All of the Olmec colossal heads depict mature men with flat noses and fleshy cheeks; the eyes tend to be slightly crossed.