L'essai haute-température est utilisé pour déterminer le comportement thermo-élastique, la résistance à la chaleur et la température de re-crisallisation des matériaux. Zwick propose différentes options, d'une température minimale de 200°C à une température maximale de 1 600°C.

Depending on the materials to be tested, 1-zone or 3-zone furnaces with air or vacuum environment are available. Zwick will provide the optimum combination of furnace (including temperature controller), suitable grips for tensile and flexure tests, plus the appropriate extensometers.

The high-temperature furnaces and extensometers are provided with swivel units, allowing comfortable, convenient operation of the testing machine, which can then be used for room-temperature testing with practically no re-configuration. An optional specimen temperature measuring device with up to three thermocouples is available for direct measurement of specimen temperature, ensuring standard-compliant testing.