Refractory Material and Refractory Product

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, গ্লাস, ceramics, সিমেন্ট, 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.

উচ্চ অ্যালুমিনা অবাধ্য ইট ভৌত এবং রাসায়নিক সূচক:
আইটেম		বৈশিষ্ট্য
		RS-80	আরএস-75	আরএস-65	আরএস-55	আরএস-৪৮
Al2O3(%)		80	≥75	≥65	≥55	≥48
অবাধ্যতা(°সে )		≥1790	≥1790	≥1790	≥1770	≥1750
বাল্ক ঘনত্ব(g/cm3)		2.65	2.5	2.45	2.4	2.3
লোড অধীনে তাপমাত্রা নরম করা(°সে )		1530	≥1520	≥1500	≥1470	≥1420
রৈখিক পরিবর্তনের হার পুনরায় গরম করা (%)	1500°CX2H	0.1	0.1	0.1	0.1	0.1
	1450°CX2H	-0.4	-0.4	-0.4	-0.4	-0.4
আপাত porosity (%)		22	≤23	≤23	≤22	≤22
ঠান্ডা নিষ্পেষণ শক্তি (এমপিএ)		55	≥50	≥45	≥40	≥35
আবেদন		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 (জি / সেমি 3)		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 ℃		1.20	1.20	1.20	1.20	1.20
রাসায়নিক রচনা (%)	MgO	86	84	80	76	74
	F.C.	10	12	15	18	20
আবেদন		Ladle	EAFLadle	BOFEAFLadle	BOFEAFLF	BOFEAF

আইটেম		Fused Cast AZS Brick
সূচক		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

আইটেম	GM1650	GM1600	GM1550	GM1680
Al2O3 %	63	60	57	63
SiO2+SiC %	30	30	30	30
আপাত porosity %	17	17	19	17
Cold crushing strength Mpa	85	90	90	100
Refractoriness under load ℃ (0.2এমপিএ)	1650	1600	1550	1680
তাপীয় শক প্রতিরোধের(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
তাপ পরিবাহিতা (w/m*k)	400℃	0.14	0.27	0.32	0.41	0.49
	600℃	0.16	0.29	0.34	0.43	0.5
	800℃	0.18	0.31	0.36	0.44	0.51
	1000℃	0.20	0.33	0.38	0.45	0.53
Classification Temperature (℃)		1260	1430	1540	1650	1760
Thermal Expansion 1000℃ (%)		0.5	0.7	0.8	0.9	1.1
Bulk Density (জি / সেমি 3)		0.55-0.62	0.78-0.8	0.88	1.03	1.25
ঠান্ডা নিষ্পেষণ শক্তি (এমপিএ)		1.2	1.6	2.1	2.5	3.5
Modulus of Rupture (এমপিএ)		0.9	1.4	1.6	2.1	2.1
Reheating Linear Change (%)CT-30℃*8H		1230℃-0.5	1400℃-0.5	1510℃-0.5	1620℃-0.9	1730℃-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 (জি / সেমি 3)		2.35	2.70	3.20
Al2o3(%)		45	75	95
Cao(%)		1.15	1.15	1.15
Flexural Strength(এমপিএ)	110℃*16h	6	6	8
	1500℃*3h	8	8	10
Compressive Strength(এমপিএ)	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
অবাধ্যতা	℃	1710	1790	1790
Safe Service Temperature	℃	1400	1450	1650

Ceramic fiber products

Customized other types of refractory products

Refractory product production

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.