High Quality Refractory Castable For Cement(Low Iron)

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Product Description:

Specifications

refractory castable for cement
1) High quality with lowest price
2) Good density, high strength
3) Low cement

Product Description

high quality refractory castable for cement(low iron)

1. Propertities

1) High refractoriness

2) Good density and high strength

3) Low cement with competitive price

4) Good mechanicial performance

5) High quality

2. Application

1) Refractoriness material castable

3. The physical properties

Type

Program  

Index

BM-LN

BM-AHS

BM-AH10

BM-AH15

BM-AH18

BM-SP4

Chemical composition%

Al2O3

>40

>50

>60

>65

>68

-

Al2O3+MgO

-

-

-

-

-

70-80

Bulk density

(g/cm3)

110°C×16h

>2.25

>2.40

>2.55

>2.60

>2.65

2.8-3.0

1350°C×3h

>2.20

>2.35

>2.50

>2.55

>2.60

2.8-3.0

Compressive strength

(M pa)

110°C×16h

>35

>60

>60

>65

>65

>50

1350°C×3h

>50

>80

>80

>88

>90

>50

Modulus of rupture

(M pa)

110°C×16h

>5

>10

>10

>12

>12

>10

1350°C×3h

<8

<12

<12

<12

<12

<12

Permanent linear

changing rate

(%)

110°C×16h

<0.2

<0.1

<0.1

<0.1

<0.1

<0.1

1350°C×3h

<0.5

<0.5

<0.5

<0.5

<0.5

<0.5

Water demand

(%)

6.5±0.5

6.0±0.5

5.5±0.5

5.0±0.5

5.0±0.5

4.0±0.5

Long-term service

temperature(°C)

1350

1350

1350

1350

1350

1350

Maximum service

temperature(°C)

1600

1600

1600

1600

1600

1600

Application

Low-temperature

furnace roof,

walls

All parts

All parts

All parts

All parts

Furnace walls,

partsof slag  

resistance


Packaging & Shipping

25kg bag or ton bag or as your requirement

Our Services

Delivery fast and accurate, high quality, fast reply and good after-service.



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Q:What are the characteristics of the carbon composite refractories?
The features of carbon composite refractories: 1. It is with an aggressive high thermal shock resistance 2. Good resistance to molten steel and slag
Q:what materials can make external wall fireproofing paint have the fireproofing effect
Fire retardant coatings are generally used for fireproofing and fire retardant of steel structure buildings, large stadiums, railway stations, thermal power station, nuclear power plants, urban tunnels, large-scale industrial plants, warehouses, flammable material surface. Improve the refractory time of buildings and combustible materials.
Q:How many fire endurance grades are the AAA fire resisting shutter divided?
The fire shutter is divided into A / B / C classes. The refractory limits are not less than 1.2 /0.9 /0.6 hours. References to "general technical specification for steel fire resistance rolling shutter door GB 14102-93". 4.3 4.3.1 Classification according to fire resistance time. The common steel fire resisting shutter(see Table 3) The categories of the codes of the refractory time hF1 1.5F2 2.04.3.2 composite steel fire shutter composite steel fire shutter(see Table 4). Table 4 and Category Code refractory time hF3 2.5F4 3.04.4 refractory press time, smoke performance classification 4.4.1 ordinary steel fire anti-cigarette curtain (see Table 5) Table 5 and category code leak smoke refractory time h (20Pa pressure) FY1 1.5 ≤0.2m3 / m minFY2 2.0 ≤0.2m3 / m min4.4.2 composite steel fire anti-cigarette curtain (see table 6) table 6 and category code leak smoke refractory time h (20Pa pressure) FY3 2.5 ≤0.2m3 / m minFY4 3.0 ≤0.2m3 / m min excerpt complete fire shutter when the fire district for fire resistance of 3 hours, the opening portion on the firewall setting fire shutter fire resistance of 1.2 hours. **** Fire resistance of 3.0 hours called premium (fire back surface). "Construction Regulation" is mentioned in setting up a firewall and used as the separation of the fire resisting shutter and the fire compartments. When taking the fire back surface temperature rise as the fire resistance standard of the fire resisting shutter, the fire endurance should not be less than 3.00h; When taking the fire back surface temperature rise as the fire resistance standard of the fire resisting shutter, the two sides of the roll should have protection of  closed automatic water spray system, and the duration of water spray system should not less than 3.00h. In summary: The fire resisting shutter can be divided into: Grade, A, B and C looking to adopt
Q:Who knows the new fireproof and thermal inuslation matertial?
New fire insulation material, having a foam material body, with the following characters: Outside of the foam material body bonds the aluminium foil composite glass fiber cloth, which is bonded by the aluminium foil and glass fiber cloth through fireproof glue. The utility model has the following advantages: Bonding the aluminum foil composite glass fiber cloth to the outer surface of the foam insulation material, will strengthen thermal insulation index, also will prevent the burning of the foamed material, thus ensuring the fireproofing safety of the foam insulation material.
Q:What are Grade-A waterproof inorganic thermal insulation materials?
There is a market confusion in Grade-A waterproof inorganic thermal insulation materials. The products mainly include Grade-A monomer material like roc wool and ultra-thin insulation board and Grade-A composite material. Many Grade-B materials wraaped with calcium silicate board or foam cement belongs to Grade-A material, such as phenolic aldehyde composite. Some foamed materials with filling also belongs to Grade-A material. However, there are few products with Grade-A qualification. Many manufacturers are working on the margins of the records with Grade-A fireproofing performance examining report. But this situation will not be too long.
Q:What's the classification of refractory material?
Magnesium aluminum is complex and mainly seeing what classification standard is like according to the appearance shape can be divided into two categories, setting and not setting according to the acid alkali can be divided into acidic, magnesia, high aluminum, ramming expected, spinel, spray coating, plastic, just the quality of the jade, daub material according to the chemical composition is divided into, such as clay, neutral and alkaline according to the operation mode can be divided into different castable, magnesium, calcium, magnesium chrome
Q:What kind of materials can be tested their electrical resistivity in the current refractory industry?
Graphite, Magnesium Oxide, and alumina are all feasible.
Q:Who knows about the grade C fireproof door materials?
There are no differences in the interior materials of the grade A , B and C fire doors, they all use fire rock wool boards. The only difference is the thickness of built-in fire rock wool boards. The rock wool boards' thickness of grade A fire doors is 52 mm, that of grade B is 46mm, and that of grade C is 40 mm.
Q:What types of steel are silicious quicksand and chromium quicksand used in respectively?
Chromium quicksand can be used in steel-making process that has longer refining time like LF, VD and RH, in stainless steel drainage and thin plate drainage agent. Silicious quicksand is used in short steel-making process, process that is less than 45 seconds or process without refining. You can consult Hua Heng for details or inspect it by yourself.
Q:The primary problem, does the gas permeable brick is fired refractory bricks(refractory) ?
gas permeable brick have two types:built-in type and external mounted type. the built-in gas permeable brick and the external mounted gas permeable brick are usually made by fire burning, and small part of bricks are made by the low temperature heat.

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