A laboratory demonstration in the U.S. showing varying properties which can be imparted by heat treating pieces of steel.
United States USA Date:1924 Duration:4 min 19 sec Sound:NO SOUND
A film titled: 'The story of heat treatment of steel' on the heat treatment of steel in the United States. Interior of a laboratory. Varying properties which can be imparted by heat treating different pieces of a steel rod are demonstrated. A man seated at a desk. He stands up and holds a rod of untreated steel. The rod is treated using different heat treating methods. Four treated rods are placed on a table. One of the rod becomes extremely hard. Another rod becomes very soft. The third rod can be bent double without destroying the steel structure. The fourth rod is extremely elastic. A diagram depicts physical properties of steel.
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