$Raw Materials for Refractory:Chinese Calcined Bauxite with the Lowest Price System 1$
$Raw Materials for Refractory:Chinese Calcined Bauxite with the Lowest Price System 2$
$Raw Materials for Refractory:Chinese Calcined Bauxite with the Lowest Price System 3$

$Raw Materials for Refractory:Chinese Calcined Bauxite with the Lowest Price$

$Raw Materials for Refractory:Chinese Calcined Bauxite with the Lowest Price System 1$

$Raw Materials for Refractory:Chinese Calcined Bauxite with the Lowest Price System 2$

$Raw Materials for Refractory:Chinese Calcined Bauxite with the Lowest Price System 3$

Raw Materials for Refractory:Chinese Calcined Bauxite with the Lowest Price

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Loading Port:: China main port

Payment Terms:: TT OR LC

Min Order Qty:: 0 m.t.

Supply Capability:: 30000 m.t./month

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Items	Al2O3	Fe2O3	B.D.	K2O+Na2O	CaO+Mgo	TiO2
88	88%min	1.5%max	3.25min	0.25%max	0.4%max	3.8%max
87	87%min	1.6%max	3.20min	0.25%max	0.4%max	3.8%max
86	86%min	1.8%max	3.15min	0.3%max	0.5%max	4%max
85	85%min	2.0%max	3.10min	0.3%max	0.5%max	4%max
83	83%min	2.0%max	3.05min	0.3%max	0.5%max	4%max
80	80%min	2.0%max	3.0min	0.3%max	0.5%max	4%max
78	75-78%	2.0%max	2.8-2.9	0.3%max	0.5%max	4%max

Quick Details

Place of Origin:	Shanxi, China (Mainland)	Shape:	Block	Material:	Alumina Block
SiO2 Content (%):	5-19%	Al2O3 Content (%):	75-89%	Refractoriness (Degree):	Common (1580°< Refractoriness< 1770°)
CrO Content (%):	None	SiC Content (%):	None	Model Number:	78,80,83,85,86,87,88,89
Brand Name:	CNBM	Fe2O3:	2%max	K2O+Na2O:	0.25-0.4%
CaO+MgO:	0.4-0.6%	Bulk Density:	2.8-3.30

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Q: Where is the production of refractory manganese alloy manufacturers? Manganese is recommended between 63 and 70!: There are a lot of silicon manganese alloy manufacturers, production market is relatively large, the manganese content in manganese alloys between 63 to 70 or more common

Q: How to distinguish the fire resistant level of the rubber and plastic thermal insulation material?: It is divided into level A, B1, B2 and B3. According to the current "burning behavior of building materials classification method", Level A insulation material is a non-combustible material, which belongs to YT. However, from the point of view of the current market , level A insulation material are very few, only glass wool, rock wool board, foam glass and vitrified micro bead. However, compared with level A insulation material, the more welcomed by the market is the organic insulation material. This is characterized as thermal insulation material, which is divided into three levels: level B1 is flame retardant, level B2 is flammable and level B3 is flammable. The level B1 nonflammable thermal insulation material is determined according to the fire endurance of the material. And different parts of the material are divided differently! Such as the common EPS / XPS insulation boards through special treatment of adding flame retardant. . Level B2 combustible insulation material is commonly the EPS expanded polystyrene foam insulation board and XPS board, that is, the ordinary plate. This material has low ignition point, and releases large amounts of harmful gases in the combustion process . Level B3 flammable insulation material is commonly the thermal insulation material taking polystyrene foam as the main material. Since this material is highly flammable, it has been out of the external wall thermal insulation materials. As for the civil construction insulation materials, China's current popular building insulation materials in the market are mainly made of three organic foams: EPS (molded polystyrene board), XPS (extruded polystyrene board) and PU (polyurethane).

Q: What are the materials for refractory materials? What are their names?: Acid refractory with silicon oxide as the main component, are commonly used in brick and clay brick. Silica is silica containing more than 93% silica products, raw materials used in silica, silica and other waste, the acid resistance of slag erosion ability, high load softening temperature, volume shrinkage after repeated burning, or even a slight expansion; but it is vulnerable to the erosion of basic slag, low thermal shock resistance. The brick is mainly used for thermal equipment of glass furnace, coke oven, acid furnace etc.. Clay brick with refractory clay as the main raw material, containing 30% to 46% of alumina, weak acid refractory material, heat shock resistance, resistance to acid slag, widely used.

Q: What type of firebrick does TZ-3 represent?: It is the standard brick.

Q: What is molten silicon? What refractoriness do refractories made by it have? What properties of using does it have?: Molten silicon can be called quartz glass, which shows an amorphous silicon state. It is a liquid fusion at above 1723 degree and is an ultra-cooling state at low temperatures. It is not generated in refractories, but generated in the matrix, showing liquid state at a high temperature capable of buffering the stress with somewhat binding properties. If quartz glass is used as refractory, its function are melrly these ones. (These are what I konw for reference only.)

Q: What are the chemical composition of refractory cement?: Calcium aluminate prepared by calcining as the main component. Aluminate cement takes bauxite and limestone as raw materials, alumina content of about 50% as the clinker. And it is a hydraulic cementing material made by grinding. Refractory cement is also known as aluminate cement.

Q: How many types of fire-resistant material?: 1. Acid fire-resistant material refers to one with more than 93% SiO2. It is featured by resistance to the corrosion of acidic slag ad high temperature and easy to react with alkaline molten slag. 2. Alkaline refractory material generally refers to one with magnesium oxide or magnesium oxide and calcium oxide as the main component. It has high refractoriness and strong resistance to basic slag. 3. Silicate aluminum refractory material refers to one with SiO2, Al2O3 as the main component. According to the content of Al2O, it can be divided into three categories: half siliceous (15-30% Al2O3), clay (Al2O3 30 ~ 48%), high aluminum (more than 48% of Al2O3). 4. Fused cast refractory material refers to shaped refractory products made by high temperature melting and casting.

Q: On the problem of making refractory materials: Refractories mainly depend on their high melting point characteristics. The refractory market is mainly Magnesium Oxide material.

Q: What's the fire endurance of A grade fireproof glass curtain wall?: The following is fire endurance of A class fireproof glass curtain wall. Fire endurance of the fire window: A class fire window: no less than 1.2h; B class fire window: no less than 0.9h; C class fire window: no less than 0.6h. Technical requirements: 1. Materials and fittings: (1) Window frame should adopt the steel frame or wood frame with certain strength so as to guarantee the integrality and stability of the fitting; (2) Steel frame and mound layer can choose the galvanized steel sheet or stainless steel sheet. Its selection standard is in line with provisions of Article 5.1 in GB12955 "General Technical Requirements on Steel Fire Doors"; (3) Selection standard of wood frame and mound layer should be consistent with the provisions of Article 5.1.1 in GB14101 "General Technical Requirements on Wood Fire Doors"; (4) Filler material inside the steel frame and wood frame should be incombustible material; (5) Fireproof glass can choose the qualified product with no influence on the fire resistance test of the fire window, and its light transmittance should be no less than 75% of that of the ordinary sheet glass with the same layers; (6) Sealing material between the frame and the fireproof glass should use flame retardant material which can play the role of fire prevention and smoke insulation in case of fire. Hope it's helpful for you.

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