ASTM D790
Standard Test Methods for Flexural Properties of Unreinforced and Reinforced Plastics and Electrical Insulating Materials


ASTM D790 establishes test procedures for evaluating the flexural properties of rigid, semi-rigid, and elastomeric plastics under bending loads. The standard provides two complementary methods: deflection-based testing (Method A) and yield-point determination (Method B), both applying perpendicular loads to supported specimens to measure flexural modulus and flexural strength. Widely adopted across industries for characterizing thermoplastics, thermosets, and composite materials, it delivers critical data for engineering design and quality assurance of components exposed to bending stresses.


ASTM D790 standard webpage
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