STAINLESS STEEL—THE MIRACLE METAL (4 films)

Titles are: HISTORICAL DEVELOPMENT, 30min — discusses the history of metallurgy from prehistoric times through the age of alchemy leading to the discovery of chromium and the experiments of Berthier, Goldschmidt, Strauss, Maurer, Brearley and others which led to the development of three basic types of stainless steel alloys (LC card Fi A 61-978); METALLURGICAL BACKGROUND, 40min — discusses the changes in atomic structure resulting from thermal action for iron, carbon steel, and the martensitic, ferritic and austenitic grades of stainless steel. Explains the differences in three classes of stainless steel by means of the gamma loop. Defines common metallurgical terms (LC card Fi A 61-979); SPECIFIC PROPERTIES, 40min — demonstrates and compares the specific properties of the three basic classes of stainless steel, including such properties as corrosion resistance, magnetism, hardness, ductility, strength, toughness, electrical and thermal conductivity, thermal expansion, and heat resistance. Includes the development of stress-strain diagram and an explanation of passivation (LC card Fi A 61-980); STAINLESS STEEL TAILORED TO THE JOB, 46min — uses ten basic elements to organize the forty common types of stainless by the uses for which they were developed and are best suited. Explains engineering and metallurgical facts pertaining to the various types, showing examples of finished products. Defines general-purpose and special-purpose types (LC card Fi A 61-981).