Refrax® PRO, PLUS, and TOP tiles

Refractory Tiles

The Refrax® family of nitride and oxynitride bonded silicon carbide materials utilize carefully selected raw materials with specific attention paid to grain size distribution. This attention to detail ensures these materials are long-lasting and cost-effective in the challenging operating conditions associated with waste to energy applications.

Saint-Gobain Performance Ceramics & Refractories is recognized worldwide as the provider of choice for OEMs looking for robust products with long service lives.

Features and Benefits

Refrax® PRO

Specifications

  • Tried and tested material with narrow tolerances
  • An ideal standard product for the first pass and the combustion area

Typical Chemical Analysis & Physical Properties
 

Property Value Method
Typical Chemical Analysis

SiC

Si3N4
Si2ON2

Others

75%

22%

3.5%

DIN EN ISO 21068

DIN 13925

DIN 51001

Maximum Application Temperature
Reduced Atmosphere
Oxidized Atmosphere



1,550ºC
1,150ºC

 
Bulk Density 2.70 kg/dm³ BS EN 993-1:1995
Open Porosity 14% BS EN 993-1:1995
Cold Crushing Strenght >140 MPa BS EN 993-5:2000
Linear Thermal Expansion 
250-400ºC
250-600ºC
250-800ºC
250-1,000ºC


3.9
3.9
4.0
4.0
BS 1902 - 5.14/1:1992
Thermal Conductivity
at 400ºC
at 800ºC
at 1,000ºC

22W/mK
18W/mK
16W/mK
BS 1902 - 5.5: 1991
Thermal Shock Resistance Cycles    > 30 DIN 51068-1
Refrax® PLUS

Specifications

  • Endowed, patented premium product for the most stringent requirements
  • Suitable for all areas, particularly areas exposed to high wear and high stresses Ideal for use in repairs

Typical Chemical Analysis & Physical Properties
 

Property Value Method
Typical Chemical Analysis

SiC

Si3N4
Si2ON2

Others

75%

22%

3.5%

DIN EN ISO 21068

DIN 13925

DIN 51001

Maximum Application Temperature

1,150ºC

 

Cold Crushing Strength

>140 MPa EN 993-5
Bulk Density 2.70 kg/dm³ EN 993-1
Open Porosity 13% EN 993-1
Linear Thermal Expansion 
250-400ºC
250-600ºC
250-800ºC
250-1,000ºC


3.9 10-6/K
3.9 10-6/K
4.0 10-6/K
4.6 10-6/K
EN 993-19
Thermal Conductivity
at 400ºC
at 800ºC
at 1,000ºC

22W/mK
18W/mK
16W/mK
EN 993-15
Thermal Shock Resistance Cycles    > 30 DIN 51068-1
Steam Oxidation at 1,000ºC / 500 h Volume Change  ≤ 0.8 ASTM C863
Refrax® TOP

Specifications

  • Doped, patented, doubled fired material with glazed surface
  • Suitable for all areas, particularly areas exposed to aggressive slags 

Typical Chemical Analysis & Physical Properties
 

Property Value Method
Typical Chemical Analysis

SiC

Si3N4
Si2ON2

SiO2

Others

75.0%

21.0%
 

1%

3%

DIN EN ISO 21068

DIN 13925

DIN 51001

Maximum Application Temperature

1,150ºC

 
Cold Crushing Strength >140 MPa EN 993-5
Bulk Density 2.70 kg/dm³ EN 993-1
Open Porosity 12% EN 993-1
Linear Thermal Expansion 
250-400ºC
250-600ºC
250-800ºC
250-1,000ºC


3.9 10-6/K
3.9 10-6/K
4.0 10-6/K
4.6 10-6/K
EN 993-19
Thermal Conductivity
at 400ºC
at 800ºC
at 1,000ºC

33W/mK
21W/mK
18W/mK
EN 993-15
Thermal Shock Resistance Cycles    > 30 DIN 51068-1
Steam Oxidation at 1,000ºC / 500 h Volume Change  ≤ 0.4 ASTM C863

Documents

Articles
Waste to Energy Refrax SiC - Article

Saint-Gobain provides outstanding refractory solutions for thermal treatment in the WTE market. Our tube protection systems are unrivaled protecting tube

PDF | 1.3 MB
WastetoEnergy-Refrax-SIC-Article-p17-22-2024891
Brochures & Flyers
Waste to Energy Tclip system Tubes - Leaflet

Saint-Gobain provides outstanding refractory solutions for thermal treatment in the WTE market. Our tube protection systems are unrivaled protecting tube

PDF | 82.6 KB
WastetoEnergy-tclip-tubes-leaflet-EN-202501