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Accessories for Creep Testing

For use with different applications and environmental conditions in creep testing, ZwickRoell offers a wide variety of modular accessories for the Kappa creep testing machines. The optimal combination of heating system, precise temperature control, suitable thermocouples, coordinated load strings and preferred extensometers is the basis for reliable test results in creep testing.

Get an overview of the available accessories for the Kappa series and let one of our engineers assist you in your selection.

High Temperature Furnace with laserXtens 2-120 HP/TZ

Chamber for vacuum and inert gas environment

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Overview of Heating Systems for Creep Testing

For creep testing systems there is a wide range of heating systems available, which meet the different standards and customer requirements. Get an overview of the possible alternatives. Our engineers will gladly advise you in the selection of the perfect heating system.

Temperature chamber up to 250°C

This temperature chamber developed by ZwickRoell is suitable for tests in a temperature range of -80°C to +250°C.

Temperature chamber up to 250°C

This temperature chamber developed by ZwickRoell is suitable for tests in a temperature range of -80°C to +250°C.
3-zone furnace up to 1,200°C

With this 3-zone furnace, developed for creep testing up to a max. of 1,200°C, precise temperature distribution is ensured.

3-zone furnace up to 1,200°C

With this 3-zone furnace, developed for creep testing up to a max. of 1,200°C, precise temperature distribution is ensured.
Short furnace up to 1,200°C

Short specimen require short furnaces and based on their sensitivity are often combined with fixed load strings and an alignment fixture.

Short furnace up to 1,200°C

Short specimen require short furnaces and based on their sensitivity are often combined with fixed load strings and an alignment fixture.
3-zone furnace up to 1,500°C

This 3-zone furnace is used for tensile, compression, and flexure tests up to 1,500°C in air and requires the use of a ceramic load string.

3-zone furnace up to 1,500°C

This 3-zone furnace is used for tensile, compression, and flexure tests up to 1,500°C in air and requires the use of a ceramic load string.
Induction heating system up to 1,200°C

Allows for rapid heating and cooling of metallic and non-metallic specimen in thermo-mechanical fatigue testing.

Induction heating system up to 1,200°C

Allows for rapid heating and cooling of metallic and non-metallic specimen in thermo-mechanical fatigue testing.
Vacuum chamber up to 2,000°C

This 3-zone vacuum chamber allows for tests such as tensile, compression and flexure testing on metals and non-metals up to 2,000°C.

Vacuum chamber up to 2,000°C

This 3-zone vacuum chamber allows for tests such as tensile, compression and flexure testing on metals and non-metals up to 2,000°C.

Additional Accessories for Creep Testing

Universal 3-zone furnace controller

For creep testing in an extended temperature range, exact temperature control along the specimen throughout the full duration of the test is essential. The temperature controller developed by ZwickRoell and proven for many years, ensures precise, reproducible, and user-independent temperature control of the specimen during every test. The universal 3-zone furnace controller meets all requirements of the current international test standards such as DIN EN ISO 204, DIN EN ISO 6892-2, ASTM E139, ASTM E21.

Specimen temperature measuring device

For temperature measurement directly on the specimen the ZwickRoell creep testing systems are equipped with a specimen temperature measuring device.

For creep tests normally up to three thermocouples are used, which are connected to the specimen. With the connection of the thermocouples it is ensured that the specimen temperature is measured on the correct location throughout the duration of the test.

Load string for tests up to 1,500°C

Ceramic load string (right) and metallic (left)

For creep testing in high temperatures, ZwickRoell offers high-temperature load strings up to 1,500°C.

The load string consists of:

Pull-rod coupling
Pull-rods
Specimen adapter

The high-temperature load string transmits the force from the high-temperature specimen adapters in the furnace to the pull-rod couplings outside the furnace. For creep tests in extended temperature ranges the pull-rods and specimen adapters therefore have to hold up to special thermal loads. Metallic high-temperature pull-rods are ideal for use up to 1,200°C and ceramic high-temperature pull-rods up to 1,500°C.

Extensometers for tests up to 2,000°C

The differentiating advantage of extensometers featuring non-contact measurement is that they can be used right up to break without risk of damage, even with specimens that are critical in this respect. Sensitive specimen remain unaffected and with the laserXtens the need for time-consuming specimen marks is eliminated. Especially in an extended temperature range, non-contact extensometers provide a defining advantage over contact extensometers, since the access to furnace and temperature chambers can be sealed with view windows. Additional features such as another measurement axis for transverse strain and determination of strain distribution are further unique qualities that only a non-contact measuring system can offer.

Find out more about non-contact extensometers for creep testing:

Contacting extensometers for tests up to 1,500°C

Contact extensometers for creep testing are available for tensile as well as compression and flexure tests. In addition to different accuracy classes and measurement ranges, extensometers for extended temperature ranges are also available. A distinction is made between side- and axial-attaching extensometers, which are suitable for special test types such as crack propagation testing. Depending on the specimen shape, different sensor arms are used. Well designed swivel units allow for easy operation and fast test-readiness.

With the wide selection, our engineers are happy to help you find the perfect contact extensometer for your application.

Creep Testing System for Hydro Aluminium

For creep and stress relaxation testing, Hydro Aluminium uses a Kappa 50 DS with temperature chamber at room temperature and elevated temperatures up to +250°C.