Norwalk, California. Norwalk is a suburban city in Los Angeles County, California, United States. The population is estimated to be 107,096 as of 2014. It is the 58th most densely-populated city in California. Founded in the late 19th century, Norwalk was incorporated as a city in 1957.
Report Abuse. Strike while the iron is hot means act while you have the chance to. It comes from the black-smithing practice of heating up metal and then striking it when it is malleable to shape it. If you let the metal cool off, then it breaks instead of bends into shape.
The open-hearth furnace is one way to create steel from pig iron. The pig iron, limestone and iron ore go into an open-hearth furnace. It is heated to about 1,600 degrees F (871 degrees C). The limestone and ore form a slag that floats on the surface. Impurities, including carbon, are oxidized and float out of the iron into the slag. When the carbon content is right, you have carbon steel.