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Customized Pressureless Sintered SiC Roller
Specification: 40 * 20 * 2220 * 10T
Heat Resistant up to 1650°C for Roller Hearth Kilns
Product Overview
This high-performance silicon carbide roller is manufactured using advanced pressureless sintering technology. Made from high-purity SiC, it delivers exceptional mechanical strength, outstanding high-temperature resistance (up to 1650°C in oxidizing atmospheres), excellent corrosion resistance, and superior thermal shock performance. Designed specifically for demanding industrial applications such as roller hearth kilns, it ensures reliable and stable operation under extreme thermal conditions. Custom dimensions and end-processing services are available to meet precise customer requirements.
Typical Applications
Conveying rollers in high-temperature roller kilns
Suitable for industries including:
Daily porcelain & sanitary ceramics
Lithium-battery raw-material production
Magnetic materials
Other high-temperature firing zones in roller kilns
Key Features
Exceptional Wear Resistance
Excellent Oxidation Resistance
Outstanding Corrosion Resistance
Superior High-Temperature Tolerance
High Thermal-Shock Resistance (ΔT > 350°C)
Near-Zero Open Porosity - dense, non-permeable structure
Physical Properties of Pressureless Sintered SiC (SSiC)
Property
Unit
Value
SiC Content
vol%
≥ 98
Density (20°C)
g/cm³
≥ 3.06
Open Porosity
vol%
≈ 0
Hardness (Rockwell 45N)
R45N
93
Vickers Hardness HV1
kg/mm²
2350
Flexural Strength (20°C)
MPa
320-400
Flexural Strength (1300°C)
MPa
300-400
Coefficient of Thermal Expansion
10⁻⁶ K⁻¹
4.0
Thermal Conductivity (20°C)
W*m⁻¹*K⁻¹
196
Thermal Conductivity (1200°C)
W*m⁻¹*K⁻¹
60
Modulus of Elasticity (RT)
GPa
410
Thermal Shock Resistance
°C
> 350
Max. Service Temperature (air)
°C
1650
Available Product Sizes (Custom Sizes Upon Request)
