Effect of Temperature on Modulus of Elasticity of Porcelain Enameled Steel

The modulus of elasticity of porcelain enameled steel specimens was measured at different temperatures. A dynamic test (the sonic method) was used for the determination of the modulus of the metal and of the metal-enamel composites. Equations and constants are presented by which the elastic constant can be calculated for any enamel thickness in the temperature range from room temperature to 500° C. Graphs are also presented to show the relationship of the modulus of elasticity, temperature, and enamel-metal thickness ratio for ground-coated, white cover-coated, and direct white enameled steel specimens.