Cryston® Cu Max & Twinfrax® Blocks & Tubes

Burner Blocks and Burner Tubes

Efficient melting is the primary goal of every metal caster. Saint-Gobain Performance Ceramics & Refractories’ burner blocks and burner tubes provide reliability and long service life, while improving the performance of burners.

The new Twinfrax® components also feature an insulating layer to prevent shell hotspots that can lead to warpage and gas leaks.

Features and Benefits

  • Patented dual refractory design
  • Two-piece design (burner block and burner tube)
  • Self-protecting silicon-oxynitride bond phase
  • Thermal shock resistance
  • Integrated semi-insulating backing layer
  • Excellent oxidation resistance in the SiC hot face layer
  • Less heat loss through the furnace shell
  • Improved energy/fuel efficiency and operator comfort
  • Fewer gas leaks
  • Easier maintenance


As Twinfrax® is comprised of two materials, is there an issue with differential thermal stress?

Twinfrax® has been designed with this specific issue in mind. The dual materials exhibit compatible thermal expansion coefficients meaning that high thermal stress is avoided.

What is the white layer present in Twinfrax® components?

Twinfrax® features a semi-insulating backing layer that reduces heat loss through the burner block. Its material composition is specifically designed for compatibility with the SiC hot face layer.


Brochures & Flyers
Non Ferrous Copper Shaft Furnaces

Saint-Gobain Performance Ceramics & Refractories has
introduced a THIRD GENERATION of silicon carbide
refractories to effectively protect your copper shaft

PDF | 1.41 MB
Non Ferrous Copper Shaft Furnaces