Refractory Materials Suppliers and Manufacturer | Fire Bricks - Ruitailianxin

Lightweight Ultra-Low Conductivity Mullite Brick

lianxingaowen33 — Wed, 10 Jun 2026 03:16:52 +0000

Product Description

Description of Lightweight Ultra-Low Conductivity Mullite Brick

Lightweight ultra-low conductivity mullite fire bricks are a high-end energy-saving upgrade of ordinary lightweight mullite bricks. They are based on high-purity mullite (3Al₂O₃・2SiO₂) as the main crystalline phase and adopt a microporous closed-pore composite process to construct a nanoscale fine sealed pore structure. This achieves the triple advantages of lightweight and low conductivity, including lower thermal conductivity, lower bulk density, and lower heat storage.

Characteristics of Lightweight Ultra-Low Conductivity Mullite Refractory Brick

Exceptional Thermal Insulation and Outstanding Energy Savings

Silica Brick

lianxingaowen33 — Sat, 06 Dec 2025 09:31:16 +0000

Product Description

Characteristics of Silica Bricks

Silica fire bricks have these characteristics:

Low thermal conductivity
High purity,good acid resistance
Good thermal stability at high temperature
High viscosity at high temperature, high strength
Strong slag resistance and strong impact resistance
Strong resistance to glass liquid and air erosion

Application of Silica Bricks

Silica refractory bricks are mainly used in glass industry and steel industry.

Glass melting tank , glass kiln and Soaking pit, Doghouse crown, suspended wall of channel, top crown and inlet sealing of glass furnace.
Partition walls of the carbonization chamber and combustion chamber of the coke oven.
The regenerator and slag chamber of the steel making open hearth furnace.

Physical and Chemical Index

		Ordinary silica brick		High-quality silica brick
		BG-95B	BG-96B	LXBG-95B (BG-95A)	LXBG-96B (BG-96A)	LXBG-96B	ZXBG-96	DXBG-96
SiO2 (%)	≥	95	96	95	96	96	96	96
Fe2O3(%)	≤	1.2	1.0	1.2	1.0(0.8)	0.7	1.0	1.2
0.2MPa Refractoriness Under Load(℃)	≥	1650	1670	1660	1680	1680	1680	1670
Apparent Porosity(%)	≤	22	22	22(21)	22	22	23	24
Bending strength(MPa)	≥	36	35	35	35	35	30	30
Bulk Density(g/cm³)	≤	2.35	2.34	2.35	2.34	2.34	2.34	2.35
Melting index(Al₂+2R₂O)(%)	≤	/	/	1.0(0.7)	0.5	0.7	0.5	0.6
Refiring linear change %(1450℃×2h)		/	/	/	/	/	0～+0.3	0～+0.3

Company Profile

About Ruitai Lianxin

Henan Ruitai Lianxin Refractory Materials Co., ltd is a modern R&D-centered refractories manufacturing enterprise integrated with refractories sales and marketing, furnace engineering construction, recycling and sales of waste refractories as well as refractory raw material, technology and goods import and export, and technical services. Well-equipped and technologically advanced, ISO/QHSE-certified management underpins a product line of ordinary, medium and high-grade magnesia series brick, magnesia-chrome brick, magnesia-alumina spinel brick, magnesia-alumina- chrome basic brick, lightweight brick, clay brick, high alumina brick, corundum brick, zircon series bricks, silicon carbide brick and insulation materials, monolithic castable, ramming mix, plastic, etc. We manufacture more than 70 categories of refractory bricks with more than a thousand specifications and models, which are widely used in high-temperature kiln/furnace, non-ferrous metallurgical smelter, cement lime rotary kiln, glass-melting furnace, electric power, petrochemical hazard waste incinerator etc.

Factory Show

As a 20 refractory bricks manufacturer, we have our own factory, professional machinery and equipments, strong technical team, complete delivery process, perfect after-sales service.

Production Process

We have a complete production process, from raw materials to molding, and then to finished products. Each step is operated and inspected by dedicated personnel to ensure the high quality of fire bricks.

Packaging & Shipping

Packaging: Standard export wooden pallet
Shipping: By vessel or plane from any Chinese port

Company Advantages

Customer Cases

As a world-renowned refractory fire bricks supplier and exporter, we have expanded our business scope to the world, providing high quality fire bricks to customers worldwide. We have gained loyal customers all over the world, reached cooperation again and again, and become the first choice of global customers.

Cooperation Partners

As a refractory bricks source manufacturer for 20 years, we use the best materials and the most cutting-edge technology to carefully make fire bricks, our firebricks have all kinds of types to meet various application needs, has won many reliable cooperation partners.

Questions & Answers

Q1: Could I get a sample before placing an order?
A1: Yes. A sample as per your requirement can be prepared for approval.

Q2:How can I get your prompt quotation?

A2:We can give you reply with quotation quickly if you kindly send the inquiry with following factors: dimension (length*width*thickness), service temperature, application and quantity.

We’d be appreciated if you can also provide the density and content.

Q3: Do you have stocks?
A3: Yes, but only for regular size.

Q4: How do you deliver my orders?
A4: Our experts can recommend you the suitable way based on the quantity and your budget. Normally ,it is by sea.

Q5: I am a big buyer, can I get a competitive price?
A5: Yes, you will get our lowest price without quality compromise along with our professional service.As we are working with mainly players in Europe, Asia, America and Afraic.

Q6: What is your quality control?
A6: 1.Chemical inspection is performed during Raw material, production and finished refractory materials.
2.Physical test is performed for finished refractory bricks.

Q7: Are you a fire bricks manufacture or trader?

A7: We are truly a refractory materials manufacturer, Ruitai Lianxin not only can provide the high quality refractory materials with the best price, but also can offer the best pre-sale service and after-service.

Q8: Do you accept size and shape customization? Are the specifications accurate?

A8: Yes! We have a professional R&D team, and advanced QC inspection equipments to ensure the accurate size and shape for you.

Contact Us

Silica Brick最先出现在Ruitailianxin。

Refractory Cement

lianxin-bai — Sat, 22 Nov 2025 03:39:07 +0000

Product Description

Characteristics of Refractory Cement

• High Temperature Resistance: Refractory cement can withstand high temperatures, with a refractoriness exceeding 1580°C.
• High Bond Strength and Plasticity: High bond strength firmly binds refractory aggregates together; good plasticity facilitates construction, mixing, transportation, and molding.
• Strong Corrosion Resistance: Excellent resistance to chemical corrosion, resisting erosion by strong corrosive substances such as acids and alkalis.Calcium magnesium aluminate refractory cement, in particular, exhibits even stronger resistance to slag erosion.
• Good Sulfate Resistance: Refractory fire cement performs exceptionally well in resisting sulfate erosion.
• Good Waterproofing Performance: Due to its high density, its concrete possesses excellent waterproofing properties.

Application of Refractory Cement

• Kiln: Refractory cement is used for furnace linings (such as cement rotary kilns, glass kilns, ceramic kilns, metallurgical furnaces, etc.) to withstand extreme temperatures and protect structural components.
• Boiler: Construction and repair of high-temperature boilers and repair of refractory linings.
• Incinerator: Assemble and line the inner walls of industrial incinerator chimneys and other high-temperature chimneys.
• Other industrial applications: Refractory fire cement is used for coatings and linings in the aluminum manufacturing industry, and for lining kilns in cement plants.
• Refractory material manufacturing: Refractory cement, as an important binder, is used in the manufacture of refractory materials such as refractory bricks, refractory castables, and refractory precast components, to bind refractory aggregates into products with a certain shape and strength.

What is the price of refractory cement?

The main factors influencing price include quantity and type. As a high-temperature ductile material, the price of refractory cement depends on the selected quantity and type. Lianxin’s team will provide different pricing plans based on customers’ specific needs. Customers ordering the same type in bulk can enjoy larger discounts.

Company Profile

About Lianxin

Zhengzhou Lianxin High Temperature Advanced Materials Co., Ltd is a modern R&D-centered refractories manufacturing enterprise integrated with refractories sales and marketing, furnace engineering construction, recycling and sales of waste refractories as well as refractory raw material, technology and goods import and export, and technical services. Well-equipped and technologically advanced, ISO/QHSE-certified management underpins a product line of ordinary, medium and high-grade magnesia series brick, magnesia-chrome brick, magnesia-alumina spinel brick, magnesia-alumina- chrome basic brick, lightweight brick, clay brick, high alumina brick, corundum brick, silicon carbide brick and insulation materials, monolithic castable, ramming mix, plastic, etc. We manufacture more than 70 categories of refractory bricks with more than a thousand specifications and models, which are widely used in high-temperature kiln/furnace, non-ferrous metallurgical smelter, cement lime rotary kiln, glass-melting furnace, electric power, petrochemical hazard waste incinerator etc.

Factory Show

As a 20 refractory brick manufacturer, we have our own factory, professional machinery and equipments, strong technical team, complete delivery process, perfect after-sales service.

Production Process

We have a complete production process, from raw materials to molding, and then to finished products. Each step is operated and inspected by dedicated personnel to ensure the high quality fire bricks.

Finished Refractory Products

Ruitai Lianxin as a 20 years fire bricks supplier, we produce different refractory bricks and unshaped refractory materials. Such as magnesia chrome bricks, high alumina bricks, corundum bricks, AZS bricks, silica bricks and so on.

Packaging & Shipping

Our fire bricks are delivered to customers in the shortest possible time by land, sea or air.

Company Advantages

Customer Cases

As a fire bricks world-renowned exporter, we have expanded our business scope to the world, providing high quality firebricks to customers worldwide. We have gained loyal customers all over the world, reached cooperation again and again, and become the first choice of global customers.

Cooperation Partners

Questions & Answers

Q1: Could I get a sample before placing an order?
A1: Yes. A sample as per your requirement can be prepared for approval.

Q2:How can I get your prompt quotation?

A2:We can give you reply with quotation quickly if you kindly send the inquiry with following factors: dimension (length*width*thickness), service temperature, application and quantity.

We’d be appreciated if you can also provide the density and content.

Q3: Do you have stocks?
A3: Yes, but only for regular size.

Q4: How do you deliver my orders?
A4: Our experts can recommend you the suitable way based on the quantity and your budget. Normally ,it is by sea.

Q7: Are you a fire bricks manufacture or trader?

A7: We are truly a refractory materials manufacturer, we not only can provide the high quality refractory materials with the best price, but also can offer the best pre-sale service and after-service.

Q8: Do you accept size and shape customization? Are the specifications accurate?

A8: Yes! We have a professional R&D team, and advanced QC inspection equipments to ensure the accurate size and shape for you.

Contact Us

Refractory Cement最先出现在Ruitailianxin。

Ceramic Fiber Blanket

lianxingaowen33 — Mon, 04 Aug 2025 09:06:15 +0000

Product Description

Description of Ceramic Fiber Blanket

Ceramic fiber blanket is made from bulk fibers, produced by the most modern spinning needling and thermal forming processes.Ceramic fiber blanket consist of a group of thermally efficient high temperature insulation materials that combine the advantages of both low heat storage and complete resistance to thermal shock.Offering a broad range of thermal capabilities and physical characteristics, Ceramic Fiber family provides proven and effective solutions to a variety of heat processing applications.

Characteristics of Ceramic Fiber Blanket

Heat resistance
Low shot content
Low heat storage
High tensile strength
Low thermal conductivity
Thermal shock resistance
Excellent chemical stability

Application of Ceramic Fiber Blanket

Industrial furnace lining
High temperature pipes heat preserve
Heat resistant sealing gasket
Glass tank furnace thermal insulation
Power boiler and nuclear heat insulation
Ceramics kilns thermal insulation
High temperature filter materials

Physical and Chemical Index

		BlO Blanket	COM Blanket	STD Blanket	ZrAl Blanket	ZrO2 Blanket
Classification Temperature(°C)		1260	1050	1260	1350	1430
Continuous Use Temperature,°C		1000	800	1000	1200	1350
Colour		white	white	white	white	white
Density, kg/m3		80,96, 128	80,96, 128	80,96, 128	80,96, 128	80,96, 128
Melting point (minimum),°C		1760	1648	1760	1760	1760
Tensile Strength (KPa)		≥30
Shot content (Ф≥0.212mm)(%)		≤15
Fiber Diameter (um)		3--5
Shrinkage (24 hours )		≤2.5 (1000°C)	≤2.5 (800°C)	≤2.5 (1000°C)	≤2.5 (1200°C)	≤2.5 (1350°C)
Themmal Conductivity (W/m·K)		0.05(200°C)	0.05(200°C)	0.05(200°C)	0.08(400°C)	0.05(200°C)
		0.08(400°C)	0.08(400°C)	0.08(400°C)	0.12(600°C)	0.08(400°C)
		0.12(600°C)	0.12(600°C)	0.12(600°C)	0.17(800°C)	0.12(600°C)
		0.18(800°C)	0.17(800°C)	0.17(800°C)	0.16(800°C)	0.15(800°C)
Chemical Composition (%)	Al203	1	≥40	≥44	≥52	≥35
	Si02	≥62	≥55	≥53	≥40	≥49
	Zr20	-	-	-	5-7	≥15
	Ca0	≥20	-	-	-	-
	MgO	≥5	-	-	-	-

Company Profile

About Lianxin

Factory Show

As a 20 refractory bricks manufacturer, we have our own factory, professional machinery and equipments, strong technical team, complete delivery process, perfect after-sales service.

Test Equipment

We have innovative technology and advanced experimental equipment to ensure that every product has the best quality and we are responsible for every customer.

Production Line

As a fire bricks manufacturer for more than 20 years, we have a complete product production line, ensuring that every step is carried out strictly in accordance with the procedures.

Production Process

Quality Control

After the refractory bricks are manufactured, we need to undergo professional testing and inspection to ensure that each high-quality refractory brick is delivered to the customer, so that the customer can rest assured.

Packaging & Shipping

Our refractory fire bricks are delivered to customers in the shortest possible time by land, sea or air.

Company Advantages

Customer Cases

As a world-renowned exporter, we have expanded our business scope to the world, providing high quality firebricks to customers worldwide. We have gained loyal customers all over the world, reached cooperation again and again, and become the first choice of global customers.

Company Certification

We are a reliable manufacturer and supplier of refractory bricks, with a number of certificates and patents to protect your kiln, and our professional team of experienced engineers and technicians are committed to providing you with excellent service.

Cooperation Partners

Questions & Answers

Q1: Could I get a sample before placing an order?
A1: Yes. A sample as per your requirement can be prepared for approval.

Q2:How can I get your prompt quotation?

A2:We can give you reply with quotation quickly if you kindly send the inquiry with following factors: dimension (length*width*thickness), service temperature, application and quantity.

We’d be appreciated if you can also provide the density and content.

Q3: Do you have stocks?
A3: Yes, but only for regular size.

Q4: How do you deliver my orders?
A4: Our experts can recommend you the suitable way based on the quantity and your budget. Normally ,it is by sea.

Q6: What is your quality control?
A6: 1.Chemical inspection is performed during Raw material, production and finished products.
2.Physical test is performed for finished products.

Q7: Are you a manufacture or trader?

A7: We are truly a manufacturer, we not only can provide the high quality products with the best price, but also can offer the best pre-sale service and after-service.

Q8: Do you accept size and shape customization? Are the specifications accurate?

A8: Yes! We have a professional R&D team, and advanced QC inspection equipments to ensure the accurate size and shape for you.

Contact Us

Ceramic Fiber Blanket最先出现在Ruitailianxin。

Ceramic Fiber Board

lianxingaowen33 — Fri, 01 Aug 2025 09:03:15 +0000

Product Description

Description of Ceramic Fiber Board

Ceramic fiber board provides a rigid solution for ceramic fiber insulation. The boards are manufactured through a wet forming process using alumina-silica fibers and binders. Standard board grades are standard, high purity, and zirconia. Boards are available in a variety of temperature ratings, dimensions, and custom vacuum formed shapes. The mixture of refractory fibers and binders, which have low organic content is vacuum processed into high temperature ceramic fiber board that imparts good mechanical strength even after heating. Ceramic Board is a refractory board which has low thermal conductivity and high tensile strength and excellent resistance against thermal shock and chemical attack. Upon initial use at specific temperature the organic binder burns and turns the board to brownish giving slight odor. Once the binder is burnt out it will be pure white and odorless.

Characteristics of Ceramic Fiber Board

Low heat storage
Low thermal conductivity
High rigidity and light weight
Excellent thermal shock resistance
Can be machined, cut and shaped easily

Application of Ceramic Fiber Board

Industrial furnace wall lining
High temperature pipe insulation material
Oven, stove, boiler insulation lining
High temperature electrical equipment thermal insulation

Physical and Chemical Index

		LNTX-1050B	LNTX-1260B	LNTX-1260HPB	LNTX-1430B
Permanent Heating Linear Change(%)		950ºCX24h≤-4	1000ºCX24h≤-4	1100ºCX24h≤-4	1350ºCX24h≤-4
Thermal Conductivity(Average 500ºC)W/(m.k)		≤0.165
Water Content(%)		≤-1.5
Organic Content(%)		≥-6
Density(Kg/M3)		250~320	280~320	300~320	300~320
Al2O3		≥40	≥43	44-47
Al2O3+SiO2		≥95	≥96	≥98
Fe2O3		≤0.5	≤0.5	≤0.3	≤0.5
Na2O+K2O+Fe2O3		≤0.5
Thermal Conductivity(W/m.k)	200ºC	0.082	0.074	0.055	0.078
	400ºC	0.102	0.092	0.073	0.102
	500ºC	0.110	0.103	0.086	0.116
	600ºC	0.133	0.127	0.105	0.135
Cold Crushing Strength (Mpa)		0.2	0.2	0.15-0.2	0.12
Product Specifications		Length: 900/1000/1200/2400mm; Width:500/600/1000/1200mm; Thickness:6~100mm All sizes can be customized made

Company Profile

About Lianxin

Factory Show

As a 20 refractory bricks manufacturer, we have our own factory, professional machinery and equipments, strong technical team, complete delivery process, perfect after-sales service.

Test Equipment

We have innovative technology and advanced experimental equipment to ensure that every fire brick has the best quality and we are responsible for every customer.

Production Line

As a refractory fire bricks manufacturer for more than 20 years, we have a complete product production line, ensuring that every step is carried out strictly in accordance with the procedures.

Production Process

Quality Control

Packaging & Shipping

Our refractory fire bricks are delivered to customers in the shortest possible time by land, sea or air.

Company Advantages

Customer Cases

Company Certification

Cooperation Partners

As a fire bricks source manufacturer for 20 years, we use the best materials and the most cutting-edge technology to carefully make fire bricks, our firebricks have all kinds of types to meet various application needs, has won many reliable cooperation partners.

Questions & Answers

Q1: Could I get a sample before placing an order?
A1: Yes. A sample as per your requirement can be prepared for approval.

Q2:How can I get your prompt quotation?

A2:We can give you reply with quotation quickly if you kindly send the inquiry with following factors: dimension (length*width*thickness), service temperature, application and quantity.

We’d be appreciated if you can also provide the density and content.

Q3: Do you have stocks?
A3: Yes, but only for regular size.

Q4: How do you deliver my orders?
A4: Our experts can recommend you the suitable way based on the quantity and your budget. Normally ,it is by sea.

Q6: What is your quality control?
A6: 1.Chemical inspection is performed during Raw material, production and finished products.
2.Physical test is performed for finished products.

Q7: Are you a manufacture or trader?

A7: We are truly a manufacturer, we not only can provide the high quality products with the best price, but also can offer the best pre-sale service and after-service.

Q8: Do you accept size and shape customization? Are the specifications accurate?

A8: Yes! We have a professional R&D team, and advanced QC inspection equipments to ensure the accurate size and shape for you.

Contact Us

Ceramic Fiber Board最先出现在Ruitailianxin。

Lightweight Mullite Insulation Brick

lianxingaowen33 — Thu, 31 Jul 2025 06:53:59 +0000

Product Description

Description of Lightweight Mullite Insulation Brick

Lightweight mullite insulation bricks generally refer to insulation refractory bricks with a density of 0.6-1.1g / cm3. Due to the characteristics of low density, high porosity, less thermal conductivity, good thermal insulation, and certain compressive strength, light-weight mullite insulation bricks have been widely used in heat treatment equipment. The use of mullite thermal insulation bricks with low thermal conductivity and small heat capacity as the structural material of the furnace body can largely save fuel consumption; At the same time, because the kiln can quickly heat up and cool, it can improve the production efficiency of the equipment; it can also reduce the weight of the furnace body and simplify the kiln structure, improve product quality, reduce ambient temperature, improve working conditions. But mullite heat insulation brick also has some precautions. Insulation fire bricks have large porosity and loose structure, and can not be used to directly contact the slag and liquid metal; the mechanical strength is low and cannot be used for load-bearing structures;The wear resistance is also poor, so it is not suitable for the parts that contact with the furnace material and wear seriously. Since its good thermal insulation peformance, the mullite insulation refractory brick is an ideal choice for the insulation parts of different industrial furnaces.

Characteristics of Lightweight Mullite Insulation Brick

High purity, less impurities
Accurate size, arbitrary cutting
Low heat capacity, low thermal conductivity
Has excellent resistance to acid and alkaline slag
High temperature resistance,direct contact with flame
High strength, excellent high temperature volume stability

Application of Lightweight Mullite Insulation Brick

Light weight mullite refractory bricks are mainly used for heat insulation of glass furnaces.

Physical and Chemical Index

Item		JM-23	JM -26	JM -28	JM -30
Classification temperature (°C)		1260	1430	1540	1650
Bulk density (g/cm3)		0.6	0.8	0.9	1.0
Crushing strength (Mpa)		1.2	1.6	2.1	2.5
Modulus of rupture (Mpa)		0.9	1.4	1.6	2.1
Permanent linear change (CT-30°CX24h)%		0.5	0.4	0.5	0.9
Reversible thermal expansion at 1100		0.5	0.7	0.8	0.9
Thermal conductivity (W/m.k)	400°C	0.14	0.27	0.32	0.41
	600°C	0.16	0.29	0.34	0.43
	800°C	0.18	0.31	0.36	0.44
	1000°C	0.2	0.33	0.38	0.45
	1200°C	-	0.35	0.41	0.47
Chemical Analysis (%)	Al2O3	37	58	67	73
Chemical Analysis (%)	Fe2O3	0.7	0.7	0.6	0.5

Company Profile

About Lianxin

Factory Show

As a 20 refractory fire bricks manufacturer, we have our own factory, professional machinery and equipments, strong technical team, complete delivery process, perfect after-sales service.

Test Equipment

We have innovative technology and advanced experimental equipment to ensure that every fire brick has the best quality and we are responsible for every customer.

Production Line

As a refractory fire brick manufacturer for more than 20 years, we have a complete product production line, ensuring that every step is carried out strictly in accordance with the procedures.

Production Process

Quality Control

Packaging & Shipping

Our refractory fire bricks are delivered to customers in the shortest possible time by land, sea or air.

Company Advantages

Customer Cases

Company Certification

Cooperation Partners

Questions & Answers

Q1: Could I get a sample before placing an order?
A1: Yes. A sample as per your requirement can be prepared for approval.

Q2:How can I get your prompt quotation?

A2:We can give you reply with quotation quickly if you kindly send the inquiry with following factors: dimension (length*width*thickness), service temperature, application and quantity.

We’d be appreciated if you can also provide the density and content.

Q3: Do you have stocks?
A3: Yes, but only for regular size.

Q4: How do you deliver my orders?
A4: Our experts can recommend you the suitable way based on the quantity and your budget. Normally ,it is by sea.

Q6: What is your quality control?
A6: 1.Chemical inspection is performed during Raw material, production and finished products.
2.Physical test is performed for finished products.

Q7: Are you a manufacture or trader?

A7: We are truly a manufacturer, we not only can provide the high quality products with the best price, but also can offer the best pre-sale service and after-service.

Q8: Do you accept size and shape customization? Are the specifications accurate?

A8: Yes! We have a professional R&D team, and advanced QC inspection equipments to ensure the accurate size and shape for you.

Contact Us

Lightweight Mullite Insulation Brick最先出现在Ruitailianxin。

Alumina Bubble Brick

lianxingaowen33 — Wed, 30 Jul 2025 06:55:32 +0000

Product Description

Description of Alumina Bubble Brick

Alumina bubble bricks are made of alumina bubble balls and alumina powder as the main raw materials, combined with other binders, and fired at a high temperature of 1750 degrees. Alumina bubble fire brick is a kind of ultra-high temperature resistance and energy-saving insulation refractory material. Alumina bubble bricks not only have light density which can optimize the structure to reduce the weight of the furnace body, but also have low thermal conductivity, which has a good thermal insulation effect. Alumina bubble brick can be directly built on the lining of the high-temperature furnace that is in contact with the flame, and can also be used to manufacture high-temperature furnace tubes, trays, protective covers, etc. The performance of alumina bubble refractory bricks is generally determined by the chemical composition. Except for the production process ,some factors such as particle ratio, molding pressure and firing temperature are also very important to the quality of the fire bricks.

Characteristics of Alumina Bubble Brick

High tempreture resistance more than 1750°C
Save energy consumption and improve the thermal efficiency
Good thermal stability at high temperature and long service life
Optimize the furnace structure and reduce the weight of the furnace body
Save the quantity of other insulation refractory material used in the furnace

Application of Alumina Bubble Brick

Alumina bubble fire bricks are mainly used as the lining of high-temperature industrial kilns below 1800°C, such as petroleum, chemical, electronics, ceramics, refractory materials and other industries.

Physical and Chemical Index

	Ultra Purity Alumina Bubble Brick	Alumina Bubble Brick
	HAB-99	SAB-99	SAB-90	SAB-85
Max Service temperature ℃	1800	1800	1800	1750
Al2O3 %	≥99.3	≥99	≥90	≥85
SiO2 %	≤0.15	≤ 0.3	≤ 9	≤ 14
Fe2O3 %	≤0.1	≤ 0.2	≤ 0.2	≤ 0.2
Bulk density (g/cm3)	1.5~1.8	1.5~1.8	1.4~1.9	1.4~1.9
Cold compression strength (Mpa)	≥12	≥15	≥18	≥18
Refractoriness under load (0.1Mpa,0.6%)	≥1700	≥1700	≥1700	≥1700
Reheating linear change (1600℃x8h) %	-0.25	-0.25	±0.2	±0.3
Room temp to 1300℃ Thermal expansion coefficient	8.6	8.6	8.0	7.8
Thermal Conductivity W/(m.k) 800℃	0.75	0.75	0.6	0.55

Company Profile

About Lianxin

Factory Show

As a 20 refractory manufacturer, we have our own factory, professional machinery and equipments, strong technical team, complete delivery process, perfect after-sales service.

Test Equipment

We have innovative technology and advanced experimental equipment to ensure that every fire brick has the best quality and we are responsible for every customer.

Production Line

As a refractory bricks manufacturer for more than 20 years, we have a complete product production line, ensuring that every step is carried out strictly in accordance with the procedures.

Production Process

Quality Control

Packaging & Shipping

Our refractory fire bricks are delivered to customers in the shortest possible time by land, sea or air.

Company Advantages

Customer Cases

Company Certification

Cooperation Partners

Questions & Answers

Q1: Could I get a sample before placing an order?
A1: Yes. A sample as per your requirement can be prepared for approval.

Q2:How can I get your prompt quotation?

A2:We can give you reply with quotation quickly if you kindly send the inquiry with following factors: dimension (length*width*thickness), service temperature, application and quantity.

We’d be appreciated if you can also provide the density and content.

Q3: Do you have stocks?
A3: Yes, but only for regular size.

Q4: How do you deliver my orders?
A4: Our experts can recommend you the suitable way based on the quantity and your budget. Normally ,it is by sea.

Q6: What is your quality control?
A6: 1.Chemical inspection is performed during Raw material, production and finished products.
2.Physical test is performed for finished products.

Q7: Are you a refractory bricks manufacture or trader?

A7: We are truly a fire bricks manufacturer, we not only can provide the high quality products with the best price, but also can offer the best pre-sale service and after-service.

Q8: Do you accept size and shape customization? Are the specifications accurate?

A8: Yes! We have a professional R&D team, and advanced QC inspection equipments to ensure the accurate size and shape for you.

Contact Us

Alumina Bubble Brick最先出现在Ruitailianxin。

Refractory Plastic Castable

lianxingaowen33 — Mon, 28 Jul 2025 07:12:22 +0000

Product Description

Description of Refractory Plastic Castable

Refractory plastic refractory castables are phos-bonded, bauxite, mullite or corundum-based refractory. They are unsurpassed resistance to acid and neutral as well as basic slags allows it survive the corrosive environments. The plastic fire castable does not require forms during installation where anchors are present except for flat arch constructions.Usually the binder of plastic refractory castables are liquid aluminium dihydrogen phosphate, the plasticity can be adjusted when you are doing the installation. We can also supply the refractory plastic castable with powder binder, and refractory plastic castable ready for use (packed in cartons).

Characteristics of Refractory Plastic Castable

Excellent Plasticity
Excellent Wear Resistance
Excellent Corrosion Resistance
Excellent high Temperature Resistance

Application of Refractory Plastic Castable

Industrial furnaces: Refractory plastic castable is widely used in the lining of various heating furnaces, soaking furnaces, annealing furnaces, rotary kilns, etc., especially suitable for parts with complex shapes, such as furnace roofs, furnace wall corners, flue openings, etc.
Metallurgical industry: Refractory plastic castable is used for lining repair of steel ladles and iron ladles, as well as lining of blast furnace hot blast furnaces and other equipment.
Building materials industry: Refractory plastic castable is also used in some parts of cement kilns and glass kilns, as refractory lining or repair materials.

Physical and Chemical Index

		GRPC65	GRPC75	GRPC80	GRPC95
Service TempºC		1550	1600	1650	1700
Bulk Density (g/cm3)		2.4	2.5	2.6	2.8
CCS (Mpa)	110ºC	30	35	40	40
	1100ºC	45	45	50	50
	1500ºC	50	50	60	60
MOR (Mpa)	110ºC	8	9	10	12
	1100ºC	9	10	11	13
	1500ºC	10	11	12	14
Max Grain Size (mm)		5	5	5	5
Chemical Analysis(%)	Al2O3	65	75	80	90
Chemical Analysis(%)	Fe2O3	2.0	2.0	1.8	1.5
Maxing liquid		Shall be supplied with the castables powder

Company Profile

About Lianxin

Factory Show

As a 20 refractory bricks manufacturer, we have our own factory, professional machinery and equipments, strong technical team, complete delivery process, perfect after-sales service.

Test Equipment

We have innovative technology and advanced experimental equipment to ensure that every fire brick has the best quality and we are responsible for every customer.

Production Line

As a refractory fire bricks manufacturer for more than 20 years, we have a complete product production line, ensuring that every step is carried out strictly in accordance with the procedures.

Production Process

Quality Control

Packaging & Shipping

Our refractory fire bricks are delivered to customers in the shortest possible time by land, sea or air.

Company Advantages

Customer Cases

Company Certification

Cooperation Partners

Questions & Answers

Q1: Could I get a sample before placing an order?
A1: Yes. A sample as per your requirement can be prepared for approval.

Q2:How can I get your prompt quotation?

A2:We can give you reply with quotation quickly if you kindly send the inquiry with following factors: dimension (length*width*thickness), service temperature, application and quantity.

We’d be appreciated if you can also provide the density and content.

Q3: Do you have stocks?
A3: Yes, but only for regular size.

Q4: How do you deliver my orders?
A4: Our experts can recommend you the suitable way based on the quantity and your budget. Normally ,it is by sea.

Q6: What is your quality control?
A6: 1.Chemical inspection is performed during Raw material, production and finished products.
2.Physical test is performed for finished products.

Q7: Are you a fire bricks manufacture or trader?

A7: We are truly a refractory brick manufacturer, we not only can provide the high quality products with the best price, but also can offer the best pre-sale service and after-service.

Q8: Do you accept size and shape customization? Are the specifications accurate?

A8: Yes! We have a professional R&D team, and advanced QC inspection equipments to ensure the accurate size and shape for you.

Contact Us

Refractory Plastic Castable最先出现在Ruitailianxin。

Refractory Ramming Mix

lianxingaowen33 — Fri, 25 Jul 2025 06:17:34 +0000

Product Description

Description of Refractory Ramming Mix

Refractory ramming mass is made up of refractory aggregate and powder,binder and additive proportionally,using ramming method during construction.

1.Refractory aggregate:fire clay based,high alumina based,mullite-corundum based,silica based,magnesia based,carborundum based etc

2.Binder:phosphoric acid and phosphates, sodium silicate, aluminum sulfate,binding clay and organic binder etc.

Characteristics of Refractory Ramming Mix

Good slag resistance;
Excellent erosion resistance;
Longer and stable service life;
High density,not easy leakage;
Excellent thermal shock resistance stability;
Good volume stability at high temperature;
High refractoriness and excellent mechanical strength;

Application of Refractory Ramming Mix

Refractory ramming mix is used for the lining of smelting furnace etc thermal equipment such as ,blast furnace iron runner and slag runner,hot-blast cupola furnace,lining of blast furnace,molten steel ladle,electric arc furnace(EAF),matte smelting everberatory furnaces, lining of inductionfurnace, converter, steel refining furnace, rotary kiln etc.

Physical and Chemical Index

Types of Ramming Mix		High Alumina	Magnesium	Magnesia-chrome	Magnesia-alumina-chrome	Corundum Chromium Zircon	Alumina-zirconia
Chemical Composition %	Al2O3	83	2.3	6	≤15	74	68
	ZrO2	1.1	93（MgO）	59（MgO）	55-60（MgO）	6.6	11
	Cr2O3	-	-	16	15-20	15	-
Compressive Strength Mpa	110°C	38.5	62	43.5	74.1（150°C）	5.0	26.5
	1000°C	47.6	54	25.8	32	62.2	42.6
	1600°C	67.2	-	38.5	53	123.2（1500°C）	38.4（1400°C）
Refractoriness Under load °C		-	-	1500	-	1700	1340
Reheating linear change %		+0.60	-0.15（1600°C）	-0.60	-0.14	-	+0.93（1400°C）
Apparent Porosity %		-	14	13	-	15	23
Bulk Density g/cm3		2.70	2.95	2.70	3.05	3.33	2.70

Company Profile

About Lianxin

Factory Show

As a 20 refractory bricks manufacturer, we have our own factory, professional machinery and equipments, strong technical team, complete delivery process, perfect after-sales service.

Test Equipment

We have innovative technology and advanced experimental equipment to ensure that every fire brick has the best quality and we are responsible for every customer.

Production Line

As a refractory fire bricks manufacturer for more than 20 years, we have a complete product production line, ensuring that every step is carried out strictly in accordance with the procedures.

Production Process

Quality Control

Packaging & Shipping

Our refractory fire bricks are delivered to customers in the shortest possible time by land, sea or air.

Company Advantages

Customer Cases

Company Certification

Cooperation Partners

As a refractory fire bricks source manufacturer for 20 years, we use the best materials and the most cutting-edge technology to carefully make fire bricks, our firebricks have all kinds of types to meet various application needs, has won many reliable cooperation partners.

Questions & Answers

Q1: Could I get a sample before placing an order?
A1: Yes. A sample as per your requirement can be prepared for approval.

Q2:How can I get your prompt quotation?

A2:We can give you reply with quotation quickly if you kindly send the inquiry with following factors: dimension (length*width*thickness), service temperature, application and quantity.

We’d be appreciated if you can also provide the density and content.

Q3: Do you have stocks?
A3: Yes, but only for regular size.

Q4: How do you deliver my orders?
A4: Our experts can recommend you the suitable way based on the quantity and your budget. Normally ,it is by sea.

Q6: What is your quality control?
A6: 1.Chemical inspection is performed during Raw material, production and finished products.
2.Physical test is performed for finished products.

Q7: Are you a refractory bricks manufacture or trader?

A7: We are truly a fire bricks manufacturer, we not only can provide the high quality fire bricks with the best price, but also can offer the best pre-sale service and after-service.

Q8: Do you accept size and shape customization? Are the specifications accurate?

A8: Yes! We have a professional R&D team, and advanced QC inspection equipments to ensure the accurate size and shape for you.

Contact Us

Refractory Ramming Mix最先出现在Ruitailianxin。

High Alumina Castable

lianxingaowen33 — Thu, 24 Jul 2025 08:46:17 +0000

Product Description

Description of High Alumina Castable

High Alumina refractory castables are mixed by high quality bauxite, mullite, andalusite or corundum as aggregate, Silica Powder, α-alumina powder as micro powder, refractory cement as binder, also some additive to make better performance. Formulas are changed according to different applications.

Comparing to conventional dense castables, high alumina fire castables can be used in the area that have more higher temperature and also have higher cold crushing strength.

Characteristics of High Alumina Castable

Anti-corrode
Excellent abrasion resistance
Excellent Crushing Strength
Excellent high-temperature resistance

Application of High Alumina Castable

Iron and steel industry: High alumina refractory castable is mainly used in the lining of steelmaking furnaces, ironmaking furnaces, bearing and transporting ladles of ladles for slag and slag, As well as the lining of the flue and blast furnace body that conducts the heat.
Glass industry: Refractory material is the main building material of glass melting furnace, which has the decisive influence on glass quality, energy consumption and even product cost.

Physical and Chemical Index

		A-45	A-60	A-70	A-75	A-80	A-90
Dry Density(g/cm3)≥		2.3	2.5	2.6	2.65	2.7	3
Chemical(%）	Al2O3≥	45	60	70	75	80	90
Chemical(%）	ZrO2	-	-	-	-	-	-
Modulus of Rupture(Mpa)	110°C*24h≥	5	8	9	9	10	12
Modulus of Rupture(Mpa)	1500°C*3h≥	8(1350°C)	10(1450°C*3h)			12	15
Compressive Strength(Mpa)	110°C*24h≥	30	40	40	45	45	60
Compressive Strength(Mpa)	1450°C*3h≥	60	80	80	85	90	85
Linear Dimensional Change After Fired(1500°C*3h)%≤		±0.5	±0.5	±0.5	±0.5	±0.5	±0.5
Linear Dimensional Change After Fired(1500°C*3h)%≤		1350°C*3h	1450°C*3h	1450°C*3h	1450°C*3h	1450°C*3h	1450°C*3h
Refractoriness(°C)≥		1710	1740	1790	1790	1790	1790
Working Temp(°C)		1450	1450	1500	1550	1600	1650

Company Profile

About Lianxin

Factory Show

As a 20 refractory brick manufacturer, we have our own factory, professional machinery and equipments, strong technical team, complete delivery process, perfect after-sales service.

Test Equipment

We have innovative technology and advanced experimental equipment to ensure that every product has the best quality and we are responsible for every customer.

Production Line

As a refractory fire bricks manufacturer for more than 20 years, we have a complete product production line, ensuring that every step is carried out strictly in accordance with the procedures.

Production Process

We have a complete production process, from raw materials to molding, and then to finished products. Each step is operated and inspected by dedicated personnel to ensure the high quality fire bricks.

Quality Control

After the refractory bricks are manufactured, we need to undergo professional testing and inspection to ensure that each high-quality fire brick is delivered to the customer, so that the customer can rest assured.

Packaging & Shipping

Our fire bricks are delivered to customers in the shortest possible time by land, sea or air.

Company Advantages

Customer Cases

Company Certification

Cooperation Partners

As a refractory bricks source manufacturer for 20 years, we use the best materials and the most cutting-edge technology to carefully make fire bricks, our fire bricks have all kinds of types to meet various application needs, has won many reliable cooperation partners.

Questions & Answers

Q1: Could I get a sample before placing an order?
A1: Yes. A sample as per your requirement can be prepared for approval.

Q2:How can I get your prompt quotation?

A2:We can give you reply with quotation quickly if you kindly send the inquiry with following factors: dimension (length*width*thickness), service temperature, application and quantity.

We’d be appreciated if you can also provide the density and content.

Q3: Do you have stocks?
A3: Yes, but only for regular size.

Q4: How do you deliver my orders?
A4: Our experts can recommend you the suitable way based on the quantity and your budget. Normally ,it is by sea.

Q6: What is your quality control?
A6: 1.Chemical inspection is performed during Raw material, production and finished products.
2.Physical test is performed for finished products.

Q7: Are you a manufacture or trader?

A7: We are truly a manufacturer, we not only can provide the high quality refractory bricks with the best price, but also can offer the best pre-sale service and after-service.

Q8: Do you accept size and shape customization? Are the specifications accurate?

A8: Yes! We have a professional R&D team, and advanced QC inspection equipments to ensure the accurate size and shape for you.

Contact Us

High Alumina Castable最先出现在Ruitailianxin。

Refractory Materials Suppliers and Manufacturer | Fire Bricks - Ruitailianxin

Lightweight Ultra-Low Conductivity Mullite Brick

Product Description

Description of Lightweight Ultra-Low Conductivity Mullite Brick

Characteristics of Lightweight Ultra-Low Conductivity Mullite Refractory Brick

Silica Brick

Product Description

Characteristics of Silica Bricks

Application of Silica Bricks

Physical and Chemical Index

Company Profile

About Ruitai Lianxin

Factory Show

Production Process

Raw Materials

Mixing and Tempering

Forming

Drying

Sintering

Selecting

Packing

Shipping

Packaging & Shipping

Company Advantages

Customer Cases

Cooperation Partners

Questions & Answers

Contact Us

Refractory Cement

Product Description

Characteristics of Refractory Cement

Application of Refractory Cement

What is the price of refractory cement?

Company Profile

About Lianxin

Factory Show

Production Process

Finished Refractory Products

Packaging & Shipping

Company Advantages

Customer Cases

Syrian customer

Cooperation Partners

Questions & Answers

Contact Us

Ceramic Fiber Blanket

Product Description

Description of Ceramic Fiber Blanket

Characteristics of Ceramic Fiber Blanket

Application of Ceramic Fiber Blanket

Physical and Chemical Index

Company Profile

About Lianxin

Factory Show

Test Equipment

Production Line

Production Process

Quality Control

Packaging & Shipping

Company Advantages

Customer Cases

Indian Customer

Kazakhstan customer

Russian customer

Vietnamese customer

Syrian customer

Company Certification

Cooperation Partners

Questions & Answers

Contact Us

Ceramic Fiber Board

Product Description

Description of Ceramic Fiber Board

Characteristics of Ceramic Fiber Board

Application of Ceramic Fiber Board

Physical and Chemical Index

Company Profile

Factory Show

Test Equipment

Production Line