$Micro Silica SiO2 92% - Raw Materials for Refractory System 1$
$Micro Silica SiO2 92% - Raw Materials for Refractory System 2$
$Micro Silica SiO2 92% - Raw Materials for Refractory System 3$

$Micro Silica SiO2 92% - Raw Materials for Refractory$

$Micro Silica SiO2 92% - Raw Materials for Refractory System 1$

$Micro Silica SiO2 92% - Raw Materials for Refractory System 2$

$Micro Silica SiO2 92% - Raw Materials for Refractory System 3$

Micro Silica SiO2 92% - Raw Materials for Refractory

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Loading Port:: China Main Port

Payment Terms:: TT OR LC

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Specifications

1.Micro Silica SiO2 92%
2.Manufacturer
3.Production capacity 3000 ton per month
4.Third party inspection certificate

20FT container Micro Silica SiO2 92%

We collect micro silica from our own 16 ferro silicon furnaces. Monthly we collect approx. 2000 MT micro silica with Sio2 85-92%

HS No.: 26219000 China Origin, microsilica meets the requirements of ASTM C-1240.

Microsilica CAS No.: 69012-64-2

Microsilica Packing: 900kg/jumbo bags and 300-500kg/jumbo bags, and 20kg small plastic woven bags.

Specifications:

1. Sio2: 85-92% Min

2. LOI: 6% Max

3. Moisture: 3% Max

4. Particle Size: Retain below 45 Micron (Sieve 325), 90% Min.

5. Bulk Density: 600KGS / M3 Min

6. Chloride: Max 0.50%

Packing: 900 KGS / Per WPP Jumbo UV - Proof Bag with inner polyethelene liners

Pallet: Forkable from 4 sides with nine supporting feet

Payment terms: L/C at sight

Loadability in 1 X 20 container: 20 Bags totalling 18 MT

Min. Order Size: 2 X 20 FCL

Q: Does anyone know the difference between refractory and thermal insulation material?: The main difference between insulation bricks and refractory bricks are as follows: 1. Insulation effect The heat conductivity cofficient of insulation bricks is usually 0.2-0.4 (average temperature of 350 ± 25 ℃) w / mk while the heat conductivity coefficient of refractory bricks is 1.0 (average temperature of 350 ± 25 ℃) w / mk or more. Thus it can be seen that the insulation effect of insulation bricks is much better than that of refractory bricks. 2. Refractoriness The refractoriness of insulation bricks is generally below 1,400 degrees centigrade while the refractoriness of refractory bricks is above 1,400 degrees centigrade. 3. Density Insulation bricks are generally light-weight insulation material, and the density is generally 0.8-1.0g / cm3. But the density of refractory bricks is above 2.0g / cm3.

Q: Who knows what is the standard of insulation material whose fire proof is level A?: Fire insulation materials of level A is non combustible building materials, and does not have any burning material. Level A1: single inorganic non combustible, no open flame. Level A2: A2 level: composite organic non combustible, that is, composite materials, non flammable, smoke volume should reach the standard.

Q: What the fireproofing materialare of the refractory kettle and where they can be sold?: Many places sell these. Nearly 10 years, can't brun when it is dry, adsorption. You can also baidu these materials. Heat transfer evenly, feldspar, clay and other raw materials with a ceramic products. Traditional casserole can not resist heat difference and also can withstand for 100 high temperature without crack. Aiming at the problem of traditional casserole, easy to crack and air permeability, people joined the spodumene on raw material, produce a high-temperature resistance casserole. It is produced after the high temperature burning makes an earthenware pot to keep the original advantages. Hebei has many places to sell these materials and is also relatively cheaper. The traditional casserole has features of not easy to transfer heat's quartz and slow cooling. Due to production technology and raw materials, it greatly improves the casserole' practicability after research and improvement.

Q: Who knows the fire rating of fire?partition with steel stud?: Cement board wall of steel stud: it is used for walls with ceramic in kitchens, restroom, disinfect room, etc. If single-sided tile is made, cement pressure plate can be used on one side. Gypsum board is used on the other side. Fire?rating is A1. CaSo4.2H2O is molecular structural formula of gypsum which contains 20% water, crystal water and free water. When 10% water slowly evaporates on the flame surface, there is still 10% crystal water. Itself is grade A fire retardant material. 1 hour. It is in line with the fireproof test standard of national building materials. It can reach up to 4 hours at most.

Q: What is the fire endurance of fireproof glass cotton?: Good thermal insulation and thermal insulation. thermal insulation and thermal insulation depends on the heat conductivity coefficient of glass?silk λ=0.043W/m2K. good fireproof?performance, it's fire-resistant capacity is more than 1000 ℃.

Q: What is the new fireproofing standard of external wall thermal insulation materials?: The new national standard "Fireproof? Specification of Building Design" (GB50016-2014) has been issued, it will be carried out from May 1, 2015. Compared with "Fireproof? Specification of Building Design" GB 50016-2006 and "fire?safety?rules of tall buildings design" GB 50045-95 (2005 edition), the major changes of new standard is the following: 1. It has combined with "Fireproof? Specification of Building Design" and "Fireproof? Specification of Tall Buildings Design", and has adjusted incompatible requirements between two standards, and has unified the classification of residential buildings in accordance with the building height; 2. It has increased two chapters including the fire-fighting rescue facilities and wooden structures, and has improved the requirements for fire fighting and rescue, and standardized the fireproofing requirements of wood construction; 3. Additional requirements for the fireproofing requirements of building external insulation system; 4. The fire-fighting equipment is written in a separate chapter and improve relevant contents; cancel the design requirements of fire water supply system and smoke control system, and they are regulated by the relevant national standards; 5. appropriate increase in the high-rise residential buildings and fireproofing technical requirements for high-rise civil building whose height is greater than 100m; 6. add the fireproofing requirements used by covered pedestrian during evacuation; adjust and add designers density of construction materials, furniture, lighting shops and exhibition hall; 7. add the fireproofing requirements of underground warehouses, logistics buildings, large combustible gas tank (zone), ammonia storage tanks, LNG storage tank, and adjust the fire?separation distance of liquid oxygen tank; 8. improve the relevant requirements to prevent vertical or horizontal spread of building fire.

Q: What are fire?ratings of wall thermal insulation material?: Grade A material has no ignition and is material with thermal insulation effect, anti-combustion material. Currently it mainly refers to inorganic thermal insulation mortars of vitrified micro bead, hole-closed?expanded perlite, rock wool,mineral wool,glass wool,cement base or gypsum base, inorganic thermal insulation mortars and self thermal insulation system of lightweight block. Grade B1 is nonflammable thermal insulation material, which is determined by fire endurance of this material. In addition, the division of the material of different parts is different! What is commonly seen, such as EPS / XPS insulation boards adding flame retardant through special treatment. Grade B2 is combustible thermal insulation materials, and what is commonly seen is EPS expanding polystyrene board and XPS extruded polystyrene board, that is, the general board. This material has low ignition point, and releases large amounts of harmful gases in the combustion process . Grade B3 is flammable insulation material. Thermal insulation material with polyphenyl foam as main material is commonly seen. Since this material is highly flammable, it has been eliminated external wall thermal insulation materials.

Q: What are the fireproofing materials of the external wall included?: According to the external wall thermal insulation materials, the external insulation materials is in general divided into Class A and Class B. The A class is non-combustible material. The B class is combustible materials. The fire disasters of the CCTV building and Shenyang hotel are both caused by the B level materials. Generally, the A level material will be used, and some prices are even cheaper than the B-grade material. A level is roughly divided into thermal?mortar, phenolic foam Board, rock wool board, foam cement board, and so on. I hope my answer will help you!

Q: What's the fire resistance test method of doors and roller shutters?: Fire resistance test method of doors and roller shutters: This standard specifies the fire resistance test method for roller shutter doors under standard fire conditions. The method is used to test the fire resistance of the ventilating duct when bearing the external fire (A duct) and internal fire (B duct). Fire resistance test of vertical ducts may be conducted referring to this standard. 1.Test specimen1.1 The test specimen is obtained by cutting from any part of the qualified metal tube unless otherwise relevant standard or mutual agreement specifies the cutting position of the metal tube. 1.2 Length of the specimen: L≈2.5D+50mm (D: outer diameter of the metal tube). The cut surface of the specimen must be perpendicular to the axis of the metal , and the seamed edge of the cut should be round off. Test method GB243-82 of metal tube necking 2. Test procedures 2.1 In the test, punch or press the metal tube into the tapered conical seat (see Figure) with a hammer or press machine, and make it uniformly diminished to the regulated shrinkage X which is calculated according to the following formula: Test method GB243-822 for metallic pipe necking: The inner wall of the seat cover used in the test should be polished, and has certain hardness and is coated with lubricating oil. Its conicity is 1:10, 1:5 or others in accordance with relevant standard provisions. If there is no provision, then adopt the conicity of 1:10. This standard is not suitable for: a) The pipeline whose fire resistance depends on the fire resistance of the ceiling; b) The pipeline with access door, unless otherwise the access door is included into the pipeline and tested together; c) The pipeline with two or three sides; d) Fume exhaust pipes;

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