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.