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?

Refractory Cement

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

Product Description

Refractory cement, scientifically known as aluminate cement, is a hydraulic cementitious material made primarily from bauxite and limestone through calcination and grinding. Its core characteristic is a refractoriness of not less than 1580℃, maintaining strength and stability at high temperatures. It is mainly used in the preparation of refractory concrete or mortar as linings for industrial kilns and other thermal equipment.

Characteristics of Refractory Cement

Excellent High-Temperature Resistance

Ceramic Fiber Blanket

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

Product Description

Description of Ceramic Fiber Blanket

Ceramic fiber blankets, commonly known as alumina silicate needled blankets, are the same material. They are made primarily of alumina and silica, which are melted and spun into fibers at high temperatures, and then made into flexible roll-shaped refractory and heat-insulating materials through double-sided needle punching. They do not contain organic binders, are resistant to high temperatures, and can be cut to any size. They are the most commonly used lightweight refractory and heat-insulating materials in industry.

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 Ruitai Lianxin

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 fire brick, high alumina brick, corundum brick, zirconia brick, silicon carbide brick and insulation materials, monolithic castable, refractory ramming mix, refractory plastic, 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.

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 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?

Ceramic Fiber Board

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

Product Description

Description of Ceramic Fiber Board

Ceramic fiberboard is a high-temperature resistant, hard, plate-shaped thermal insulation material, which can be regarded as an “upgraded version” of ceramic fiber. It is made of high-purity aluminosilicate fiber (also known as ceramic fiber) as the main raw material, with the addition of a small amount of binder, and is manufactured using a wet vacuum forming process.

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

Directly used as hot surface lining: Ceramic fiberboard can directly face the flame and high-temperature airflow, and can be used as the working lining of the furnace, kiln car, and furnace door.

Used as fire baffle and partition board: Ceramic fiberboard plays the role of blocking fire and separating temperature zones in the kiln.

Backing insulation: built behind heavy refractory bricks or castables as a thermal insulation layer to form a composite furnace lining.

Production of precision parts: With its good processing performance, it can be processed into special-shaped parts such as burner blocks and sealing gaskets.

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 Ruitai Lianxin

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 insulation brick, clay fire brick, high alumina brick, corundum brick, zircon series brick, silicon carbide brick and insulation materials, monolithic castable, ramming mix, plastic, 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.

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 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

Questions & Answers

Q1: Could I get a sample before placing an order?

Lightweight Mullite Insulation Brick

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

Product Description

Description of Lightweight Mullite Insulation Brick

Lightweight mullite insulating bricks are a type of high-performance high-temperature insulation material, which can be understood as a special refractory brick that is both heat-resistant and energy-efficient.

It is a lightweight refractory product made with mullite (mainly composed of Al₂O₃-SiO₂) as the main crystalline phase through a special process. Due to its numerous uniform and tiny pores, it combines the high-temperature resistance of traditional refractory bricks with the low thermal conductivity of lightweight insulating materials.

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

Lightweight mullite insulating bricks can be used as a working layer directly in contact with the flame, or as a backing layer behind other refractory materials, providing a composite heat insulation effect. It is widely used in various high-temperature kilns in industries such as petrochemicals, metallurgy, ceramics, building materials, and glass, including pyrolysis furnaces, hot blast stoves, tunnel kilns, and glass tank kilns.

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 Ruitai Lianxin

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 insulation brick, clay fire brick, high alumina brick, corundum brick, silicon carbide brick and insulation materials, zirconia brick, monolithic castable, refractory ramming mix, refractory plastic castable, etc.

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 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?

Alumina Bubble Brick

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

Product Description

Description of Alumina Bubble Brick

Alumina bubble bricks are a high-performance, lightweight, heat-insulating refractory material that plays a crucial role in high-temperature industrial applications, balancing “ultimate thermal insulation” and “superior heat resistance.”

Its core raw material is alumina bubble—man-made lightweight spherical particles produced by melting industrial alumina at high temperatures and blowing it with high-pressure air. These hollow spheres are mixed with alumina powder and binder in a specific ratio and then fired at approximately 1750℃ to form refractory bricks with a large number of closed pores (from the hollow spheres) inside.

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 Ruitai Lianxin

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, zirconia brick, silicon carbide brick and insulation materials, monolithic castable, ramming mix, plastic, etc.

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 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

Questions & Answers

Q1: Could I get a sample before placing an order?

Refractory Plastic Castable

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

Product Description

Description of Refractory Plastic Castable

Refractory plastics are monolithic refractory materials in the form of clay blanks or lumps. Their excellent plasticity and ease of construction have made them an important choice for modern industrial kiln linings.

They are applied through methods such as tamping, vibration, or extrusion. At room temperature, they are soft and malleable like “hard clay paste,” but after high-temperature use, they sinter and harden to form a robust furnace lining. This unique property gives them a significant advantage in the construction of complex shapes and thin-walled sections.

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 Ruitai Lianxin

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 insulation brick, clay brick, high alumina brick, corundum brick, silicon carbide brick and insulation materials, monolithic castable, ramming mix, refractory plastic, 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.

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 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

Questions & Answers

Q1: Could I get a sample before placing an order?

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.

Classification of Refractory Ramming Mix

Depending on the refractory raw materials and binders used, ramming mixes can be divided into several series to adapt to different working conditions.

Acidic ramming mix

High Alumina Castable

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

Product Description

Description of High Alumina Castable

High-alumina refractory castable is a type of monolithic refractory material made primarily from high-alumina bauxite, mixed with water, and then poured into the container. Its core component is alumina (Al₂O₃), typically ranging from 40% to 90%. The higher the alumina content, the stronger the material’s high-temperature resistance and corrosion resistance.

Material Composition and Key Performance Characteristics

The performance of high-alumina castables depends not only on the alumina content but also on the precise formulation of its components:

The main raw material is high-alumina bauxite, with pure calcium aluminate cement added as a binder to achieve early strength. To optimize performance, active SiO₂ and α-Al₂O₃ micropowders are often introduced to improve flowability and sintering properties. Sometimes, minerals such as kyanite are added to compensate for volume shrinkage at high temperatures, ensuring structural stability.

Based on typical product data, the bulk density of this material is usually above 2.6-2.7 g/cm³, indicating a dense structure; its compressive strength at room temperature can reach over 80-100 MPa, exhibiting high mechanical strength. For example, a castable model LC-160 (Al₂O₃ ≥ 75%) can even achieve a compressive strength exceeding 150 MPa after high-temperature treatment at 1500℃.

Its permanent linear shrinkage rate at high temperatures is typically controlled within ±0.5%, indicating excellent volume stability and resistance to cracking due to shrinkage or expansion. Furthermore, it possesses good thermal shock resistance, abrasion resistance, and corrosion resistance.

Application of High Alumina Castable

High-alumina castables have a wide range of applications, commonly found in key parts of various high-temperature industrial kilns:

Iron and Steel Metallurgy: Used as linings for blast furnaces, hot blast stoves, heating furnaces, ladles, and tundishes.
Building Materials Industry: Commonly used lining materials for the precalciner, front and rear kiln openings, and grate coolers in cement rotary kilns.
Other High-Temperature Equipment: Also widely used in ceramic kilns, boilers, and waste incinerators.

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 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 insulation brick, clay brick, high alumina brick, corundum brick, silicon carbide brick and insulation materials, monolithic castable, ramming mix, plastic, 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.

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 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?

Refractory Materials Suppliers and Manufacturer | Fire Bricks - Ruitailianxin

Lightweight Ultra-Low Conductivity Mullite Brick

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Description of Lightweight Ultra-Low Conductivity Mullite Brick

Characteristics of Lightweight Ultra-Low Conductivity Mullite Refractory Brick

Silica Brick

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Characteristics of Silica Bricks

Application of Silica Bricks

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Refractory Cement

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Characteristics of Refractory Cement

Ceramic Fiber Blanket

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Description of Ceramic Fiber Blanket

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Application of Ceramic Fiber Blanket

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Ceramic Fiber Board

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Description of Ceramic Fiber Board

Characteristics of Ceramic Fiber Board

Application of Ceramic Fiber Board

Physical and Chemical Index

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Factory Show

Test Equipment

Production Process

Raw Materials

Mixing and Tempering

Forming

Drying

Sintering

Selecting

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Shipping

Quality Control

Packaging & Shipping

Company Advantages

Customer Cases

Company Certification

Questions & Answers