ZIRCHROM HC

Range
Sintered
Subtitle

Sintered 30% chrome-alumina

Description

High creep resistance with low chrome sublimation level. Good resistance to vapour environment.

Chemical and physical properties

Typical chemical composition

 
 

Typical crystallographic analysis

  • Cr2O3-Al2O3 solid solution
  • Corundum
  • Monoclinic zirconia

Physical characteristics

Description International standards British standards
Refractoriness under load 0.2Mpa 0.5% >1,745°C >3,173°F
Cold crushing strength 150MPa 21,756psi
Coefficient of thermal expansion at 1,000°C 8.6 10-6°C 4.78 10-6°F-1
Thermal conductivity at 1,000°C 2.35 W.m-1.K-1

16.3 BTU
in hr-1ft-2°F-1

Open porosity 15% 15%
Typical bulk density 3.45g/cm3 215pcf

Typical application

ZIRCHROM HC is dedicated to superstructure application for insulation glass furnaces. With a high creep resistance and a good corrosion resistance, ZIRCHROM HC is specifically suitable in crown application for gas-fired furnace operating at high temperature.

Related products

Sintered

ZIRCHROM 50

Sintered 50% chrome-alumina and AZS

High corrosion resistance.

Sintered
Expendables

ZIRCHROM 85

Sintered 85% high chrome

Very high corrosion resistance with high thermal-mechanical properties.

Monolithics

ERCHROM 30 CAST

Chrome monolithic bottom solution

Chrome concrete with good corrosion resistance and electrical resistivity.

Monolithics

ERCHROM 30 MORTAR

Chrome mortar for bottom solutions

Chrome mortar with good corrosion resistance.

Monolithics

ERCHROM 30 CEMENT

Chrome jointing cement

Chrome cement with good corrosion resistance.

Sintered

ZIRCHROM HER

Sintered 30% chrome-alumina

High electrical resistivity. Good corrosion and thermal shock resistance.

Sintered

ZIRCHROM 30

Sintered 30% chrome-alumina and AZS

Good corrosion and thermal shock resistance.