$Raw Materials for Refractory:White Fused Alumina Good Quality Made in China System 1$
$Raw Materials for Refractory:White Fused Alumina Good Quality Made in China System 2$

$Raw Materials for Refractory:White Fused Alumina Good Quality Made in China$

$Raw Materials for Refractory:White Fused Alumina Good Quality Made in China System 1$

$Raw Materials for Refractory:White Fused Alumina Good Quality Made in China System 2$

Raw Materials for Refractory:White Fused Alumina Good Quality Made in China

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 200 m.t.

Supply Capability:: 20000 m.t./month

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White Fused Alumina GOOD QUALITY Made in China

1. White Fused Alumnina Tech Data:

Model: WFA 0-1mm
Chemical compositions		Physical properties
Items	Value of specification (%)	Items		Property
Al2O3	99.6min	Color		White
SiO2	0.02max	Bulk density		1.75-1.95g/cm3
Na2O	0.25max	Grain density		3.90g/cm3 min
Fe2O3	0.03max	hardness	Morse hardness	9
			Micro hardness	21600-22600kg/mm3
Usage	Refractory	content of magnetic substance		0.0023%max

2. White Fused Alumina Refractory sizes:

Grain size : 8-5mm, 5-3mm, 3-1mm, 1-0mm

-8+5mm,-5+3mm,-3+1mm,-1+0mm

8-16,16-30,30-60,60-80

-8/+16, -16/+30, -30/+60, -30/+60

Fine powder: -320mesh, -280mesh, -240mesh, -200mesh,

-180mesh, -150mesh, -120mesh, -100mesh

320F 280F 240F 200F 180F 150F 100F

3. Delivery and Package:

According to customer's requirement.

4. Advantages :

Good quality

Delivery on time

Resonable price

Good service

Pcture

White Fused Alumina GOOD QUALITY Made in China

Q: Who knows about the fire endurance of A grade fireproofing glass doors?: Fire doors and windows are divided into grade A, B and C according to the real national situation, also the minimum fire endurance has been stipulated, namely, the minimum fire endurance of grade A is 1.50 h, that of grade B and C are 1.00 h and 0.50 h respectively. There are wooden fire doors and steel fire doors. The main purpose of it is to reach the time that fire resistance should last. But door?closers are required to install. The fire endurance of A grade wooden fire doors should be no less than 90 min, and that of B grade fire doors should be no less than 60 min, that of C grade fire doors should be no less than 30 min! ! !

Q: How long is the duration of fire resistance of autoclaved flyash-lime bricks?: How long is the duration of fire resistance of autoclaved flyash-lime bricks?

Q: How to distinguish the construction fire-proof material rating?: According to national standard GB8624-97,combustion performance of building materials are divided into the following levels: Class A: Incombustible building material: Material that almost never burn. Class B1: Nonflammable building material: Nonflammable materials have good effect of flame resistance. In case of fire it in the air or at high temperature it is difficult to catch fire and spread, and when the fire source is removed, the combustion can stop immediately. Class B2: Combustible?building?material: Combustible materials have good effect of flame resistance. In case of open fire in the air or at high temperature, it will immediately burst into flames and spread the fire quickly, such as wooden column, timber roof truss, wooden stairs, etc. Class B3: Flammable building material: No flame-retardant effect, highly flammable, high risk of fire. According to national standard, the fire?rating of PVC floor must be class B1.

Q: whether the fire resistant level of aerated concrete building blocks can reach the grade one?: the fire resistant level of aerated concrete building blocks can reach the grade one level. Aerated concrete strength grade shall be divided according to the concrete cubic compressive strength value. Use the symbol C and the cube compressive strength value (in N / mm2 or MPa gauge) to express. According to GB50010-2002 "concrete structure design specifications" provisions, ordinary concrete is divided into fourteen levels, namely: C15, C20, C25, C30, C35, C40, C45, C50, C55, C60, C65, C70, C75, C80 .

Q: What are the construction measures of refractory material in winter? Please descriptive briefly.: The temperature is low in winter, so refractory bulk materials should be stirred evenly on time to avoid freezing.

Q: What defect does fused cast refractories have ?: The impact on the quality of glass is mainly the defects that eroded down refractory materials mixed in the glass, thus being prodeced of grass products. Defects are mainly foreign body defects such as sand, knot and wave reinforcement.

Q: Who knows about ranking rules of fireproofing thermal insulation materials for exterior wall?: You can try the following way to give a brief introduction of the fire?rating classification of external wall thermal insulation materials. 1. the building materials are divided into following categories in terms of combustion performance according to the national standard of GB8624-97. A-level： Incombustible building material: materials almost don't burn. B1-level: nonflammable building material: these materials are good at resisting flame. It is difficult for them to burst into fire when coming across open fire in the air or at high temperature. It will not quickly get wilder and when the fire source removes, it will be extinguished immediately. B2-level: Combustible building material: combustible building materials can play a certain role in flame resistance. It will immediately burst into flames when coming across open fire or at high temperature, and will lead to fire spreading, such as wooden column, timber roof truss and timber beam as well as stairs. B3-level: Inflammable building material: Inflammable building materials are highly flammable with no flame retardant ability. The fire risk is high. 2.The exterior wall thermal insulation materials can be classified according to fire rating. 1). Insulation materials with A-level combustion performance: rock wool, glass wool, foam glass, foamed ceramics, foam cement, hole-closed perlite, etc. 2). The insulation materials with B1-level combustion performance: specially-treated extruded polystyrene board(XPS)/ specially-treated polyurethane(PU), phenolic aldehydegelatine powder polyphenyl granule,etc. 3). Insulation materials with B2-level combustion performance: molding polystyrene board(EPS), extruded polystyrene board(XPS), polyurethane(PU), polyethylene(PE), etc.

Q: what is the fireproofing material of engine room? who knows it ?: machine room fireproofing materials include: Inorganic binder: The main material includes sodium silicate, gypsum, phosphates, cement,ect.; refractory mineral filler: aluminium oxide, asbestos powder, calcium carbonate, perlite, cornstarch, ect.; nonflammable organic resin: it mainly includes polyvinyl chloride, perchloro-ethylene, chlorinated rubber, neoprene latex, epoxy resin, phenol resin, ect.. nonflammable fireproof addictive: it mainly has phosphorus, halogens, nitrogen organic compounds (chlorinated paraffins, tributyl phosphate,deca-brominated diphenyl ether), and boron series (boric acid, zinc borate, aluminium borate), antimony system, aluminium series, zirconium system, etc. inorganic compounds.

Q: What are the differences of ceramics and refractories? Is the ceramics belonging to refractories?: The ceramics and refractories are different with the porcelain ceramic with high temperature of 1300℃ as household porcelain refractory. The porcelain refractory material of 1450℃ as the same as the aluminum oxide, kaolin, refractory clay and other raw materials demand the deployment ratio of the raw material the same as the temperature.

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