Welcome to Yixing Kaida Refractory Co., Ltd.!

Catalytic device
Products required by the catalytic device: high-strength wear-resistant castables, heat-insulated wear-resistant castables, heat-insulated castables, tortoise shell nets, anchor nail series products.
![]() |
![]() |
![]() |
Lining material for catalytic cracking unit
category | level |
Hot surface temperature℃ |
Bulk density Kg/m3 |
Compressive strength MPa |
Flexural strength MPa |
Linear change rate % |
Thermal Conductivity w/m.k |
Al2O3 |
Fe2O3 |
Abrasion resistance at room temperature cm3 |
High wear resistance |
Class A(AA) |
110 |
≤3100 |
≥80 |
≥10 |
_ |
_ |
≥90 |
≤1.0 |
≤6 |
540 |
≤2950 |
≥80 |
≥10 |
_ |
_ |
|||||
815 |
≤2950 |
≥80 |
≥10 |
0~-0.25 |
≤1.5 |
|||||
Wearable |
Class B1 |
110 |
≤2500 |
≥60 |
≥8 |
_ |
_ |
≥50 |
≤2.5 |
≤10 |
540 |
≤2450 |
≥50 |
≥7 |
_ |
_ |
|||||
815 |
≤2450 |
≥50 |
≥7 |
0~-0.2 |
≤0.9 |
|||||
Level B2 |
110 |
≤2300 |
≥40 |
≥6 |
_ |
_ |
||||
540 |
≤2250 |
≥30 |
≥5 |
_ |
_ |
|||||
815 |
≤2250 |
≥30 |
≥5 |
0~-0.2 |
≤0.8 |
|||||
Insulation and wear-resistant |
LC1 |
110 |
≤2000 |
≥50 |
≥7 |
_ |
_ |
≥40 |
≤1.0 |
≤10 |
540 |
≤1950 |
≥40 |
≥6 |
_ |
0.45~0.55 |
|||||
815 |
≤1950 |
≥40 |
≥5 |
0~-0.1 |
0.5~0.59 |
|||||
Class C1 |
110 |
≤1800 |
≥40 |
≥7 |
_ |
_ |
≥40 |
≤1.0 |
≤18 |
|
540 |
≤1750 |
≥35 |
≥6 |
_ |
0.45~0.55 |
|||||
815 |
≤1750 |
≥35 |
≥5 |
0~-0.2 |
0.5~0.59 |
|||||
C2 level (C03) |
110 |
≤1600 |
≥35 |
≥5 |
_ |
_ |
≥36 |
≤2.0 |
≤20 |
|
540 |
≤1550 |
≥30 |
≥4 |
_ |
0.35~0.42 |
|||||
815 |
≤1550 |
≥25 |
≥3 |
0~-0.2 |
0.4~0.49 |
|||||
Level C3 (LC4) |
110 |
≤1400 |
≥20 |
≥3 |
_ |
_ |
≥36 |
≤2.0 |
≤15 |
|
540 |
≤1350 |
≥15 |
≥2.5 |
_ |
0.26~0.35 |
|||||
815 |
≤1350 |
≥15 |
≥2.5 |
0~-0.2 |
0.34~0.4 |
|||||
Insulation |
D02 |
110 |
≤1400 |
≥20 |
≥4.5 |
_ |
_ |
|
|
|
540 |
≤1350 |
≥15 |
≥3.5 |
0~-0.2 |
_ |
|
|
|
||
815 |
≤1350 |
≥14 |
≥3 |
_ |
0.32~0.4 |
|
|
|
||
D1 level |
110 |
≤1100 |
≥8 |
≥2.5 |
_ |
_ |
|
|
|
|
540 |
≤1050 |
≥7 |
≥2 |
_ |
≤0.25 |
|
|
|
||
815 |
≤1050 |
≥7 |
≥1.5 |
0~-0.2 |
≤0.28 |
|
|
|
||
D2 level |
110 |
≤1000 |
≥7 |
≥2 |
_ |
_ |
|
|
|
|
540 |
≤950 |
≥6 |
≥1.5 |
_ |
≤0.23 |
|
|
|
||
815 |
≤950 |
≥6 |
≥1.5 |
0~-0.2 |
≤0.25 |
|
|
|
||
1. The thermal conductivity is tested according to the flat plate method. 2. The performance index is the measured value without adding steel fiber. 3. 815℃ reburning linear rate of change and 815℃ linear rate of change data should be the same.4. Thermal shock stability (815℃, air-cooled) Class A, Class C: ≥10 times. 5. The thermal conductivity of Class A high wear-resistant lining is not used as an evaluation index for material testing, and is only for reference when calculating wall temperature. |
Contact information
Mobile terminal

Scan to view
Feedback
Copyright◎2021 Yixing Kaida Refractories Co., Ltd. 苏ICP备2021014396号 Power:300.cn