| Customization: | Available |
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| Feature: | Chemical Corrosion Resistance, Corrosion Resistance, Good Abrasion Resistance, Good Insulation Performance, High Mechanical Strength, High Melting Point, Thermal Shock Resistance |
| Production Process: | Spraying Method |
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Refractory castables refer to a mixture of refractory aggregates, binders and admixtures, which are mixed with water (or liquid binders) to form a mud material that can be constructed by pouring. The difference from other amorphous refractory materials is that refractory castables have a certain coagulation and hardening time after construction, so after pouring and forming, they need to be cured for a certain period of time before demoulding, and then after a suitable period of natural curing, they can be put into baking and use.
Classification: Low Cement/High Strength/Light Weight
Low cement castables refer to new castables with very little cement binder. The cement content of refractory castables is generally 15% to 20%, and the cement content of low cement castables is about 5%, and some are even reduced to 1% to 2%.
High strength wear-resistant castable is composed of high strength aggregate, mineral admixtures, high strength aggregate and anti crack and wear-resistant agent.
High alumina castables are refractory castables made of high-alumina raw materials as aggregates and powders, and added with binders.
The lightweight castable with low bulk density is made of aluminate cement, high alumina fine material, ceramsite, and additives.
Refractory Castable Features
Low Cement Castable Product Index
|
Product Name
|
Low Cement Castable
|
|||||
|
INDEX
|
RBTZJ-42
|
RBTZJ-60
|
RBTZJ-65
|
RBTZJS-65
|
RBTZJ-70
|
|
|
Working Limit Temperature
|
1300
|
1350
|
1400
|
1400
|
1450
|
|
|
Bulk Density(g/cm3) 110ºC×24h≥
|
2.15
|
2.3
|
2.4
|
2.4
|
2.45
|
|
|
Cold Bending Strength
110ºC×24h(MPa) ≥
|
4
|
5
|
6
|
6
|
7
|
|
|
Cold Crushing Strength(MPa) ≥
|
110ºC×24h
|
25
|
30
|
35
|
35
|
40
|
|
CTºC×3h
|
50
1300ºC×3h
|
55
1350ºC×3h
|
60
1400ºC×3h
|
40
1400ºC×3h
|
70
1400ºC×3h
|
|
|
Permanent Linear Change
@CTºC × 3h(%)
|
-0.5~+0.5
1300ºC
|
-0.5~+0.5
1350ºC
|
0~+0.8
1400ºC
|
0~+0.8
1400ºC
|
0~+1.0
1400ºC
|
|
|
Thermal Shock Resistance
(1000ºCwater) ≥
|
―
|
―
|
―
|
20
|
―
|
|
|
Al2O3(%) ≥
|
42
|
60
|
65
|
65
|
70
|
|
|
CaO(%) ≤
|
2-3
|
2-3
|
2-3
|
2-3
|
2-3
|
|
|
Fe2O3(%) ≤
|
2.0
|
1.5
|
1.5
|
1.5
|
1.5
|
|
|
Product Name
|
High Strength Castable
|
|||||
|
INDEX
|
HS-50
|
HS-60
|
HS-70
|
HS-80
|
HS-90
|
|
|
Working Limit Temperature(ºC)
|
1400
|
1500
|
1600
|
1700
|
1800
|
|
|
110ºC Bulk Density(g/cm3) ≥
|
2.15
|
2.30
|
2.40
|
2.50
|
2.90
|
|
|
Modulus of Rupture
(MPa) ≥
|
110ºC×24h
|
6
|
8
|
8
|
8.5
|
10
|
|
1100ºC×3h
|
8
|
8.5
|
8.5
|
9
|
9.5
|
|
|
1400ºC×3h
|
8.5 1300ºC×3h
|
9
|
9.5
|
10
|
15
|
|
|
Cold Crushing Strength(MPa)≥
|
110ºC×24h
|
35
|
40
|
40
|
45
|
60
|
|
1100ºC×3h
|
40
|
50
|
45
|
50
|
70
|
|
|
1400ºC×3h
|
45 1300ºC×3h
|
55
|
50
|
55
|
100
|
|
|
Permanent Linear Change(%)
|
1100ºC×3h
|
-0.2
|
-0.2
|
-0.25
|
-0.15
|
-0.1
|
|
1400ºC×3h
|
-0.45 1300ºC×3h
|
-0.4
|
-0.3
|
-0.3
|
-0.1
|
|
|
Al2O3(%) ≥
|
48
|
48
|
55
|
65
|
75
|
90
|
|
CaO(%) ≤
|
4.0
|
4.0
|
4.0
|
4.0
|
4.0
|
4.0
|
|
Fe2O3(%) ≤
|
3.5
|
3.5
|
3.0
|
2.5
|
2.0
|
2.0
|
|
Product Name
|
High Alumina Castable
|
||||||
|
INDEX
|
Al2O3
(%) ≥
|
CaO
(%) ≥
|
Refractoriness
(ºC)
|
CTºC×3h PLC ≤1%
|
110ºCAfter Drying (MPa)
|
||
|
CCS
|
MOR
|
||||||
|
Clay Bonded
|
NL-45
|
45
|
―
|
1700
|
1350
|
8
|
1
|
|
NL-60
|
60
|
―
|
1720
|
1400
|
9
|
1.5
|
|
|
NL-70
|
70
|
―
|
1760
|
1450
|
10
|
2
|
|
|
Cement Bonded
|
GL-42
|
42
|
―
|
1640
|
1350
|
25
|
3.5
|
|
GL-50
|
50
|
―
|
1660
|
1400
|
30
|
4
|
|
|
GL-60
|
60
|
―
|
1700
|
1400
|
30
|
4
|
|
|
GL-70
|
70
|
―
|
1720
|
1450
|
35
|
5
|
|
|
GL-85
|
85
|
―
|
1780
|
1500
|
35
|
5
|
|
|
Low Cement Bonded
|
DL-60
|
60
|
2.5
|
1740
|
1500
|
30
|
5
|
|
DL-80
|
80
|
2.5
|
1780
|
1500
|
40
|
6
|
|
|
Phosphate Bonded
|
LL-45
|
45
|
―
|
1700
|
1350
|
20
|
3.5
|
|
LL-60
|
60
|
―
|
1740
|
1450
|
25
|
4
|
|
|
LL-75
|
75
|
―
|
1780
|
1500
|
30
|
5
|
|
|
Sodium Silicate Bonded
|
BL-40
|
40
|
―
|
―
|
1000
|
20
|
―
|
|
Product Name
|
Lightweight Castable
|
||||||
|
Working Limit Temperature
|
1100
|
1200
|
1400
|
1500
|
1600
|
||
|
110ºC Bulk Density(g/cm3) ≥
|
1.15
|
1.25
|
1.35
|
1.40
|
1.50
|
||
|
Modulus of Rupture
(MPa) ≥
|
110ºC×24h
|
2.5
|
3
|
3.3
|
3.5
|
3.0
|
|
|
1100ºC×3h
|
2
|
2
|
2.5
|
3.5
|
3.0
|
||
|
1400ºC×3h
|
―
|
―
|
3
|
10.8
|
8.1
|
||
|
Cold Crushing Strength
(MPa) ≥
|
110ºC×24h
|
8
|
8
|
11
|
12
|
10
|
|
|
1100ºC×3h
|
4
|
4
|
5
|
11
|
10
|
||
|
1400ºC×3h
|
―
|
―
|
15
|
22
|
14
|
||
|
Permanent Linear Change(%)
|
1100ºC×3h
|
-0.65 1000ºC×3h
|
-0.8
|
-0.25
|
-0.15
|
-0.1
|
|
|
1400ºC×3h
|
―
|
―
|
-0.8
|
-0.55
|
-0.45
|
||
|
Thermal Conductivity
(W/m.k)
|
350ºC
|
0.18
|
0.20
|
0.30
|
0.48
|
0.52
|
|
|
700ºC
|
0.25
|
0.25
|
0.45
|
0.61
|
0.64
|
||
|
Al2O3(%) ≥
|
33
|
35
|
45
|
55
|
65
|
||
|
Fe2O3(%) ≤
|
3.5
|
3.0
|
2.5
|
2.0
|
2.0
|
||
Refractory Castable Applications
1. Low Cement Castable:
(1) Lining of various heat treatment furnaces, heating furnaces, shaft kilns, rotary kilns, electric furnace covers, blast furnace tapholes;
(2) Self-flowing low-cement castables are suitable for high-temperature spray gun linings for spray metallurgy and petrochemical catalytic cracking reactors Wear-resistant lining, outer lining of heating furnace water-cooled pipe, etc.
2. High Strength Castable:
Lining wear-resistant layer of slag sluice, ore trough, coal spout, hopper and silo in metallurgy, coal, thermal power, chemical, cement and other industries, and the blast furnace mixing silo, sintering silo, feeder, pelletizer, etc.
3. High Alumina Castable:
It is mainly used as the inner lining of boilers, blast furnace hot blast stoves, heating furnaces, ceramic kilns and other kilns.
4. Lightweight Castable:
The lightweight castable can be used for the thermal insulation layer of high-temperature industrial furnace and equipment also used for the lining of various high-temperature gas pipe.
ZHENGZHOU RONGSHENG REFRACTORY CO., LIMITED has 30 years of experience in R & D and design of unshape refractory experts, holds 20 utility model patents and 7 invention patents, and has passed the ISO quality, environment and safety management system certification. The company is committed to the R & D, production and service of refractories used in metallurgy, electric power, nonferrous metals, building materials, chemical industry and other industries. Its products cover 198 kinds of materials and 2369 varieties in three categories (acidic, neutral and alkaline), providing overall solutions for refractories for 1200 domestic and 200 foreign customers.
There are 240 staffs in Rongsheng Company, of which 12 is senior professional technician. Annual production capacity is up to 60000 tons. There are light and heavy weight materials production lines and all kinds of complete production, testing and check equipment, of which there are 10 series shaped press machine that from 400 tons to 1000 tons and two hyperthermia tunnel kilns whose length are 148m and 118m.
Rongsheng Refractory has established complete quality system and conducted quality control through the whole staff and process that from raw materials, production, check and various parts strictly according to ISO9001 standard and with the professional checker at each level to take good product and service as the top goal.
Q1: Are you a manufacturer or trader ?
A1: Manufacturer, some time we help our clients to purchase relevant products as a trader.
Q2: What's the MOQ?
A2. No limitation.
Q3: Can we visit your factory?
A3: Of course ,welcome at any time,seeing is believing
Q4: What's your payment terms?
A4: Negotiation
Q5: Did your factory accept customization ?
A5: Professional technology teams and engineers all can satisfy you.
Q6: How do you guarantee quality?
A6: For every production processing,we have complete QC system for the chemical composition and Physical properties.After production,all the goods will be tested ,and the quality certificate will be shipped along with goods.
Q7: Does your Zhengzhou Ronghseng Refractory supply samples?
A7: Yes, we can supply samples for free, and the freight will be undertaken by clients
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