Raw Materials for Refractory:Sintered Spinel Made in China

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Loading Port:: China main port

Payment Terms:: TT OR LC

Min Order Qty:: 25 m.t.

Supply Capability:: 5000 m.t./month

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Packaging & Delivery

Packaging Details:	In 25kg blastic woven bags; In 1000kg jumbo bags.
Delivery Detail:	according to the order quantity

Description:

SIMAS65 is a kind of sintered spinel made of high purity alumina powder and high quality active

magnesia, sintered at super-high temperature. It has low creep rate, small thermal expansion

coefficient, the strong ability of anti-chemical corrosion.

Applications:

SIMAS65 is used for making high quality castables for ladle and for con-casting slide plates, SIMAS65 is also widely used for making blast furnace hearth, stove and ceramic kiln.

Typical Chemical Analysis:

ITEM	SINTERED SPINEL
ITEM	MAS-90	MAS-78	MAS-66
Al2O3	88-91%	76-79%	64-67%
SiO2	0.2% max	0.3% max	0.4% max
Fe2O3	0.2% max	0.5% max	0.5% max
CaO	0.4% max	0.6% max	0.6% max
MgO	9-11%	20-23%	32-35%
Na2O+K2O	0.3% max	0.3% max	0.3% max
BD.- g/cm3	3.3 min	3.25 min	3.2 min

Typical Physical Properties:

Magnetic material 0.02%max.

Apparent porosity 3.0%max.

Water absorption 1.0%max.

Density of volume (g/cm3) 3.25min.

Split Sizes Available :

5-3mm, 3-1mm, 1-0mm, 0-200mesh

Other size available upon request.

Pictures:

$Refractory Raw Material Sintered Spinel Made in China$

Q: What do RH and DH stand for in refractories?: DH :An agreement that allows strangers to build shared keys, originally invented by Diffie and Hellman.

Q: What is the upper temperature limit for refractory materials?: The key depends on what refractories you use

Q: What are grade classifications of the external walls fireproofing material?: 1. The thermal insulation material of level A combustion performance: Rock wool, glass wool, foam glass, foamed ceramics, foam cement, hole-closed perlite, etc. 2. combustion performance is level B1 insulation materials: Extruded polystyrene board (XPS) after special treatment / Special treatment of polyurethane (PU), phenolic aldehyde and gelatine powder polyphenyl granule 3, combustion performance is level B2 insulation material: Molding polystyrene board (EPS), extruded polystyrene board (XPS), polyurethane (PU), polyethylene (PE), etc. See the 2009 edition construction technical measures 4.3.6 Level A insulation material is only for fireproofing, but its thermal insulation performance is not better than organic XPS \\ EPS and other materials.

Q: Who can introduce the difference between galvanized fireproof?coatings and steel structure fireproof materials?: When the steel surface derusted, it generally needs to brush rich-zinc primer before spraying fireproof coating. Fireproof coating plan itself includes anticorrosion plan, and fireproof coating is just a layer of coating plans, which is an intermediate layer in general. Fireproof coating plan generally includes primer, fireproof coating and finishing paint. Some fireproof coatings can be directly painted on the bare steel elements without primer and finishing paint. Galvanized surface generally is not necessarily needed for brushing fireproof coating. Fireproof and galvanized surface have relatively poor bond strength, so it is advisable to brush transitional lacquer or micaceous iron on the galvanized surface.

Q: Who knows the model of fireproofing materials?: There are many kinds of fireproofing materials, it's hard to discuss it in detail, but i can talk about the PC fireproofing material with you. There are various models of PC fireproofing materials, the materials manufacturer usually used are common materials; it's divided into the following levels according to fire?rating: UL94 VO level, UL94V1, general products can reach V2 level. hope it can help you.

Q: What are the refractory materials above 1000℃: I have no idea what field you are in, and I am skillful at making refractory materials, because this is my job. You can send me an email informing your purpose, here is my email address .

Q: What is fireproofing material? Are fireproof materials the same thing with thermal insulation materials and refractories?: The refractory material is capable of withstanding high temperature burning, while fireproofing material is to prevent burning. They are different from each other

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: Could you tell me the fire-resisting time of class B fire proof door?: The fire-resisting time of class B fire proof door is 1h and thickness of door can't be lower than 45mm.