MC2250 Mullite Rod, Silicate Ceramic Rod

Catalog No.	MC2250
Color	Off-white
Shape	Heater Plate
Thermal Conductivity	6 W/mo°K
Dielectric Strength	9.8 ac-kv/mm

Mullite Rod Description

Mullite rod is made of silicate ceramic mullite (3Al2O32SiO2). Mullite is a refractory oxide material combining low thermal expansion, good mechanical strength, and resilience at elevated temperatures. Raw mullite materials are easily obtained and are reasonably priced. It is certainly one of the most important oxide materials for both conventional and China Special Ceramic Parts. Its workability allows an extensive range and flexibility in fabrication. It is well suited for the casting of special shapes and larger tubes.

China Special Ceramic Parts, Inc. (CSCPI) is a trusted supplier of mullite ceramic rods.

Mullite Rod Specifications

Chemistry Content
Al2O3	SiO2	TiO2	Fe2O3	CaO·MgO	K2ONa2O and others
62.50%	34.50%	0.10%	0.80%	0.90%	1.30%

Mechanical	Units of Measure	SI/Metric	(Imperial)
Density	gm/cc (lb/ft3)	2.8	-175
Porosity	% (%)	0	0
Color	–	off-white	off-white
Flexural Strength	MPa (lb/in2x103)	180	-26
Elastic Modulus	GPa (lb/in2x106)	151	-22
Shear Modulus	GPa (lb/in2x106)	–	–
Bulk Modulus	GPa (lb/in2x106)	–	–
Compressive Strength	MPa (lb/in2x103)	1310	-190
Hardness	Kg/mm2	1070	–
Fracture Toughness KIC	MPaom1/2	2	–
Maximum Use Temperature	°C (°F)	1650	-3000
(no load)	°C (°F)	1650	-3000
Thermal
Thermal Conductivity	W/mo°K (BTUoin/ft2ohro°F)	6	-42
Coefficient of Thermal Expansion	10–6/°C (10–6/°F)	5.4	-3
Electrical
Dielectric Strength	ac-kv/mm (volts/mil)	9.8	-245
Dielectric Constant	@ 1 MHz	5.8	5.8
Dissipation Factor	@ 1 kHz	0.003	0.003
Volume Resistivity	ohmocm	>1013	>1013

Mullite Rod Applications

Mullite ceramic rods have a wide variety of applications:

– Machining of components and toolings
– Protection tubes
– Realization of prototypes
– Manufacturing of small ceramic series
– Coil cores
– Electrical insulator
– Template of assembly
– Injectors, nozzles
– Vacuum parts
– Thermal insulators, inductive insulators
– Template of brazing and welding
– Sensors