Heat Deflection Temperature

Heat deflection temperature is used to determine short-term heat resistance and is equivalent to the temperature at which a standard test bar deflects a specified distance under a load. It distinguishes between materials that are able to sustain light loads at high temperatures and those that lose their rigidity over a narrow temperature range. ARDL’s testing for heat deflection temperature provides opportunities for our customers to review their material performance and designs to meet ever increasing field service requirements.

Available Methods

Heat Deflection

Heat Deflection

Honda HES D 2500

Heat Deflection - High Strength and Fiber Reinforced Plastics

Heat Deflection - High Strength and Fiber Reinforced Plastics

ISO 75-3

Heat Deflection - Plastics and Ebonite

Heat Deflection - Plastics and Ebonite

ISO 75-2

Heat Deflection Temperature of Plastics

Standard Test Method for Deflection Temperature of Plastics Under Flexural Load in the Edgewise Position - Method B

ASTM D 648 - Method B

Heat Deflection Temperature of Plastics

Standard Test Method for Deflection Temperature of Plastics Under Flexural Load in the Edgewise Position - Method A

ASTM D 648 - Method A