Refractory Testing: Refractoriness under load (RUL) / Creep in compression (CIC), Modulus of Rupture (HMOR)

Special strength-testing methods have been established for refractory ceramics, which are of a mostly heterogeneous composition. The Refractoriness under Load (RUL) and Creep in Compression (CIC) identify the deformation resistance of a test piece under a defined load and temperature/time factors. The modulus of rupture at high temperatures (HMOR) is determined with a hot modulus of rupture tester. These all conform to the pertinent instrument and applications standards, e.g. ISO 1893, ISO 3187, ISO 5013, DIN EN 993-7/8/9, DIN 51048, DIN 51053, DIN 51063, DIN 51046.

RUL/CIC 421 - Apparatus for determining refractoriness under load

The RUL/CIC Apparatus RUL/CIC 421 enables determination of the deformation point under compression and the creep in compression with one instrument without retrofitting. Furnace, load device, differential measuring system, control and software are designed for reliable, automatic long-term operation.

HMOR 422 D/3 - Apparatus for testing MOR

The modulus of rupture of refractory ceramics is determined as the amount of force applied to a rectangular test piece of specific dimensions until failure occurs. The HMOR 422 hot modulus of rupture apparatus are used to measure the failure load as well as bending under load or deformation force.