Beams Kiln Car Construction

Silicon Carbide Beams

Beams are employed to provide structural support for a wide range of high-temperature kiln and furnace applications. Beams are available in a range of different materials, including:

  • Silit® SK siliconized silicon carbide
  • N-Durance® nitride bonded silicon carbide
  • Crystar® recrystallized silicon carbide
  • Hexoloy® SE sintered silicon carbide

A large selection of cross-sections, wall thickness, and lengths are available, with cross-sections as small as 12.5 mm and lengths up to 3,500 mm. Beams are formed using slip-casting or extrusion processes, suitable for use ‘as-is’ or finished according to customer’s required tolerances.

Features and Benefits

N-Durance® Beams

Specifications

  • Advanced nitride-bonded silicon carbide construction
  • Excellent oxidation resistance
  • High strength
  • Provide structural support in kiln and furnace applications below 1,450 °C

Typical Chemical Analysis & Physical Properties
 

  SiC-content Max. Service Temperature Bulk Density Apparent Porosity Vol. Modolus of Rupture Thermal Expansion αRT 1,100°C
  (%) (°C) (kg/dm3) (%) (RT2) (1,400°C) (10-6/K)
N-Durance® 70 1,450 - 2,642 2.75 ≤ 1 170 – 180 170 – 190 4.4
Silit® Beams

Specifications

  • Advanced siliconized silicon carbide construction
  • Excellent oxidation resistance
  • High strength
  • Able to provide structural support in kiln and furnace applications below 1,380 °C

Typical Chemical Analysis & Physical Properties
 

  SiC-content Max. Service Temperature Bulk Density Apparent Porosity Vol. Modolus of Rupture Thermal Expansion αRT 1,100°C
  (%) (°C) (kg/dm3) (%) (RT2) (1,400°C) (10-6/K)
Silit® SK 85 1,380 3 0 260 260 4.5
Silit® SKD 85 1,380 3 0 260 260 4.5
Hexoloy® Beams

Specifications

  • Advanced sintered silicon carbide construction
  • Ultimate high-temperature resistance
  • High strength
  • Able to provide structural support in kiln and furnace applications up to 1,750°C

Typical Chemical Analysis & Physical Properties
 

  SiC-content Max. Service Temperature Bulk Density Apparent Porosity Vol. Modolus of Rupture Thermal Expansion αRT 1,100°C
  (%) (°C) (kg/dm3) (%) (RT2) (1,400°C) (10-6/K)
Hexoloy® > 99 1,750 3.07 < 0,6 380 370 4
Crystar® Beams

Specifications

  • Advanced recrystallized silicon carbide construction
  • High-temperature resistance
  • High strength
  • Able to provide structural support in kiln and furnace applications up to 1,600 °C

Typical Chemical Analysis & Physical Properties
 

  SiC-content Max. Service Temperature Bulk Density Apparent Porosity Vol. Modolus of Rupture Thermal Expansion αRT 1,100°C
  (%) (°C) (kg/dm3) (%) (RT2) (1,400°C) (10-6/K)
Crystar® 2000 > 99 1,600 2.7 15 80 90 4.8
Crystar® 3000 > 97 1,600 2.7 15 80 90 4.8