High-temperature kiln Insulation Refractory Material Manufacturers

Welcome to Rongsheng Refractories! As a global leading supplier of refractory material manufacturers, we are committed to providing high-quality refractory products and professional refractory technical services to all walks of life. We can provide the most suitable refractory solutions for steel, salamin, ceramics, semento, petrochemical, power, or other high-temperature industries.

Refractory products for you to choose

High-temperature refractory bricks

We have hundreds of different refractory bricks for you to choose from. We can also recommend suitable high-temperature refractory bricks based on your kiln temperature and operating environment. The following are several popular refractory bricks.

High Alumina Refractory Brick Physical and Chemical Index:
Item		Properties
		RS-80	RS-75	RS-65	RS-55	RS-48
Al2O3(%)		80	≥75	≥65	≥55	≥48
Refractoriness(°C )		≥1790	≥1790	≥1790	≥1770	≥1750
Bulk density(g/cm3)		2.65	2.5	2.45	2.4	2.3
Softening temperature under load(°C )		1530	≥1520	≥1500	≥1470	≥1420
Reheating Linear changes Rate (%)	1500°CX2H	0.1	0.1	0.1	0.1	0.1
	1450°CX2H	-0.4	-0.4	-0.4	-0.4	-0.4
Apparent porosity (%)		22	≤23	≤23	≤22	≤22
Cold crushing strength (Mpa)		55	≥50	≥45	≥40	≥35
Paglalapat		steel furnace, glass furnace, sodium silicate furnace, ceramic shuttle kiln, cement rotary kiln, blast furnace, electric furnace, blast furnace and reverberatory furnace.

Magneisa Carbon Brick
Item/Index		MGC-10	MGC-12	MGC-15	MGC-18	MGC-20
Bulk Density (g/cm3)		2.95	2.90	2.85	2.80	2.78
Apparent Porosity (%)		3~5	3~5	3~5	3~5	3~5
Compressive Strength (kg/cm2)		450	400	400	350	350
Expansion at 1000 °C		1.20	1.20	1.20	1.20	1.20
Komposisyon ng Kemikal (%)	MgO	86	84	80	76	74
	F.C.	10	12	15	18	20
Paglalapat		Ladle	EAFLadle	BOFEAFLadle	BOFEAFLF	BOFEAF

Item		Fused Cast AZS Brick
Index		RS-AZS33	RS-AZS36	RS-AZS41
Chemical Composition%	Al2O3	≥50.00	≥49.00	≥45.00
	ZrO2	≥32.50	≥35.50	≥40.50
	SiO2	≤15.00	≤13.50	≤12.50
	Na2O+K2O	≤1.30	≤1.35	≤1.30
Volume density g/cm3		≥3.75	≥3.85	≥4.00
Apparent Porosity %		≤1.2	≤1.0	≤1.2
Cold Crushing Strength Mpa		≥200	≥200	≥200
Exudation Temperature of Glass Phase		≥1400	≥1400	≥1410
Bubble Separation Ratio（1300℃×10h）		≤1.2	≤1.0	≤1.0
Anti-corrosion rate of glass liquid 1500℃×36h （mm/24h）%		≤1.4	≤1.3	≤1.2
Bulk density（g/cm3）	Ordinary casting PT(RN RC N)	≥3.55	≥3.55	≥3.70
	No shrinking casting ZWS(RR EVF EC ENC)	≥3.65	≥3.75	≥3.85
	Tilt casting QX(RO)	≥3.65	≥3.75	≥3.90
	No shrinkage casting WS( RT VF EPIC FVP DCL)	≥3.75	≥3.80	≥3.95

Item	GM1650	GM1600	GM1550	GM1680
Al2O3 %	63	60	57	63
SiO2+SiC %	30	30	30	30
Apparent porosity %	17	17	19	17
Cold crushing strength Mpa	85	90	90	100
Refractoriness under load ℃ (0.2Mpa)	1650	1600	1550	1680
Thermal shock resistance(11oo℃, water cooling)	10	10	12	13
Bulk density g/cm3	2.65	2.60	2.55	2.65
Cold abrasion resistance cm3	5	5	5	5
Thermal conductivity(w/m·k)	1.7	1.7	1.7	1.7

Insulation bricks

Mullite Insulation Brick
Item/Index		RS23	RS26	RS28	RS30	RS32
Al2O3 %		37	54	64	72	77
Fe2O3 %		1.0	0.9	0.8	0.7	0.5
Thermal Conductivity (w/m*k)	400°C	0.14	0.27	0.32	0.41	0.49
	600°C	0.16	0.29	0.34	0.43	0.5
	800°C	0.18	0.31	0.36	0.44	0.51
	1000°C	0.20	0.33	0.38	0.45	0.53
Classification Temperature (°C)		1260	1430	1540	1650	1760
Thermal Expansion 1000℃ (%)		0.5	0.7	0.8	0.9	1.1
Bulk Density (g/cm3)		0.55-0.62	0.78-0.8	0.88	1.03	1.25
Malamig na Pagdurog ng Lakas (Mpa)		1.2	1.6	2.1	2.5	3.5
Modulus of Rupture (Mpa)		0.9	1.4	1.6	2.1	2.1
Reheating Linear Change (%)CT-30℃*8H		1230°C-0.5	1400°C-0.5	1510°C-0.5	1620°C-0.9	1730°C-0.9

Monolithics refractory product

Monolithic refractory materials, also known as bulk refractory materials or amorphous refractory materials, refer to those refractory materials that are not formed by firing. Unlike traditional shaped refractory bricks, unstructured refractory materials do not have a fixed shape or size. They usually exist in the form of powder, granules, mud, or fibers. When used, they are directly poured, rammed, sprayed, applied, or filled at the construction site according to the needs.

m		Ultra Low Cement Castable
Material		Clay	High Alumina	Corundum
Bulk Density (g/cm3)		2.35	2.70	3.20
Al2o3(%)		45	75	95
Cao(%)		1.15	1.15	1.15
Flexural Strength(Mpa)	110℃*16h	6	6	8
	1500℃*3h	8	8	10
Compressive Strength(Mpa)	110℃*16h	40	40	60
	1500℃*3h	70	800	90
Line change rate after burning(%)	110℃*16h	-0.1	0	0
	1500℃*3h	+-0.5	+-0.5	+-0.5
Refractoriness	°C	1710	1790	1790
Safe Service Temperature	°C	1400	1450	1650

Ceramic fiber products

Customized other types of refractory products

Why choose us to cooperate?

• High-quality products: All our refractories and refractory bricks are strictly controlled to ensure that each product meets the highest industry standards. Our products have excellent resistance to high temperature, wear, and corrosion, and can meet the needs of various complex environments.
• Advanced production technology: We have advanced production equipment and process technology to ensure the high precision and consistency of our products. We continue to introduce and innovate production technology to provide more efficient and energy-saving refractory solutions.
• Strong R&D capabilities: We have an experienced technical team dedicated to the research development and innovation of refractory materials. We continue to develop new products and improve product performance according to market demand to meet the diverse needs of customers.
• Professional technical support: We are not only a refractory supplier, but also your reliable partner. Our technical experts can provide you with all-round support from product selection, and installation guidance to use and maintenance, ensuring that your production process is smoother and more efficient.
• Global service network: Our customers are all over the world, including Europe, Asia, America, Africa, and other places. We can respond quickly to customer needs, provide efficient logistics services, and ensure that products are delivered on time.

Refractory material manufacturers customer cases

After 20 years of accumulation, we have many successful customers covering multiple industries and countries. For example, we provide high-alumina bricks for steel plants, customize high-temperature-resistant zircon bricks for glass plants, and provide various refractory products for foundries. Our products have been highly praised and trusted by customers.

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