C1215Z

Range
Sintered
Subtitle

Sintered dense high chrome

Description

High purity material with specific microstructure improving the resistance to thermal shock resistance. Low stoning and blistering with excellent corrosion resistance.

Typical application

C1215Z is mainly used in the critical high-wear areas of reinforcement and textile fiber glass furnaces including :

  • melter sidewalls, bottom paving and dog house corners,
  • forehearth and feeder side rails, flow blocks, bushing blocks and corner blocks.

The specific microstructure is designed to increase the thermal shock resistance for minimize cracking risk during furnace heat-up and operation. The inherent refractoriness of Cr2O3 combined with high density results in a refractory with excellent corrosion resistance against a wide variety of molten glasses and slags.

Chemical and physical properties

Microstructure

Image
C1215Z microstructure

Typical chemical composition

 

Typical crystallographic analysis

Main phase: chromic oxide

Secondary phase: monoclinic zirconia

Physical characteristics

DescriptionInternational standardsBritish standards
Cold crushing strength240Mpa34,809psi
Coefficient of thermal expansion7.8 10-6K-14.3 10-6°F-1
Thermal shock resistancefairfair
Thermal conductivity at 1,000°C3.3 W.m-1.K-122.8 BTU
in hr-1ft-2°F-1
Open porosity15%15%
Typical bulk density4.33g/cm3270pcf

Storage

The sintered dense high chrome, C1215Z solution must be properly stored in undamaged original sealed packaging, in dry conditions at temperatures between +5°C and +40°C.

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