Typical characteristic value
| Characteristic items | RS900 | RS1000 | RS2000 | ||
|
Chemical |
SiC | ％ | >85.0 | >99.0 | >99.0 |
| Si | ％ | <15.0 | － | － | |
| SiO2 | ％ | <0.2 | <0.2 | <0.2 | |
| C | ％ | <0.2 | <0.1 | <0.1 | |
| Bulk specific gravity | 3.05 | 3.00 | 3.10 | ||
| Apparent porosity | ％ | <1 | 5 | <1 | |
|
Bending |
RT | MPa | 315 | 350 | 480 |
| 1000℃ | MPa | 300 | 350 | － | |
| Modulus of elasticity | GPa | 379 | 300 | 440 | |
| Fracture toughness | MPa･m1/2 | 2.90 | 2.50 | 2.90 | |
| Thermal expansion | 1000℃ | ×10-6/K | 4.50 | 4.10 | 4.60 |
| Thermal conductivity | RT | W/mK | 207 | 130 | 170 |
| Specific heat | RT | kj/kg･K | 0.7 | 0.8 | 0.7 |
| Thermal shock resistance（△T） | K | 300 | 300 | 400 | |
| Maximum allowable working temperature | ℃ | 1350 | 1600 | 1600 | |
| Characteristics | Thermal shock resistance | 〇 | 〇 | ◎ | |
| High temperature strength | 〇 | 〇 | ◎ | ||
| Oxidation resistance | 〇 | ◎ | ◎ | ||
| Corrosion resistance | 〇 | ◎ | ◎ | ||
| High density | 〇 | 〇 | ◎ | ||
| Abrasion resistance | ◎ | ◎ | ◎ | ||
| Typical applications | Firing trays | × | ◎ | ◎ | |
| Roller materials | ◎ | × | ◎ | ||
| Protection tubes | ◎ | ◎ | ◎ | ||
| Structural elements | ◎ | ○ | ○ | ||
Evaluation in the table are relative comparisons between the four types, ◎（Most appropriate）,○（appropriate） and ×（Not appropriate）
Thermal shock resistance is measured by the water dropping method.
Temperature and bending strength
Products
Firing Containers, Trays, Crucibles
RS1000
“RECRYTE firing containers, trays and Crucibles” have excellent thermal shock resistance and chemical corrosion resistance. These features as well as their thinness and light weight make these products suitable for applications such as fluorescent paint firing containers. Production is possible in various complex shapes.
RS420, especially, has been widely used as a high-strength material.
Standard dimensions of firing containers and trays
|
No. |
Dimension (mm) |
|
１ |
150×150×H70 |
|
2 |
200×200×H70 |
|
3 |
280×280×H140 |
※Please inquire about other dimensions.(Lids are also available)
Standard dimensions of crucibles
|
No. |
Volume |
Outer diameter (mm) |
Height |
|
1 |
100 |
60 |
70 |
|
2 |
200 |
75 |
80 |
|
3 |
300 |
80 |
100 |
|
4 |
500 |
100 |
115 |
|
5 |
1000 | 120 |
150 |
※Please inquire about other dimensions.
Rollers for industrial furnace
RS900, RS1000
This material has gained wide acceptance for use as rollers in roller hearth furnaces used primarily for rapid heating of materials featuring outstanding high temperature strength and thermal shock resistance. It can be produced in sizes up to 60mm in diameter.
(Characteristics)
Excellent fire resistance Excellent heat resistance Excellent high temperature strength High tolerance to rapid temperature changes and thermal shock resistance High mechanical abrasion resistance High chemical corrosion resistance
(Warping)
Within 0.1%
※Please inquire about dimensions.
Protection Tubes
RS900
“RECRYTE protection tubes” are high density silicon carbide products.
(Characteristics)
High resistance High chemical corrosion High oxidation resistance and low volume expansion by oxidation High thermal conductivity Extremely low permeability and excellent airtightness High mechanical abrasion resistance High temperature strength Tolerance to rapid temperature changes and outstanding thermal shock resistance
(Applications)
Thermocouple protection tubes Gas insert tubes Combustion tubes Reactor core tubes Hanging a
Standard dimensions of protection tubes for high temperature measurement
|
No. |
Outer diameter (mm) |
Inner diameter (mm) |
Maximum length (mm) |
|
１ |
20 | 12 |
1500 |
|
2 |
25 |
17 |
2000 |
|
3 |
30 |
20 |
2000 |
|
4 |
35 |
25 |
2000 |
| 5 | 40 | 25 |
2000 |
※Please inquire about other dimensions.
Construcrion Materials
Boards (Setter) : [Types] RS1000,RS2000
Other jigs : [Types］RS900, RS1000,RS2000
Long complex form or thin products can be manufactured to the most exacting tolerance. Applications include beams, supports, and construction materials, or setters, trays and base plates for firing of electronic parts or ceramic.
– Cautions to be observed during use –
RECRYTE is a ceramic product and is subject to damage if dropped or struck against other objects. Avoid shocks when handling the product. If damaged, broken surfaces may be sharp and protective devices (gloves) should be used during disposal.
JQA-2026
Sendai plant