Raw Materials for Refractory:Cement Refractory Cement / High Alumina Cement
- Loading Port:
- China main port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 0 m.t.
- Supply Capability:
- 50000 m.t./month
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Product Description
Corumdum mullite series castable refractory cement for Petrolchemical&Coal Chemical Industry
Corundum mullite series castables features:
1. high refractoriness
2. good chemical stability
3. high strength
1. The corundum mullite series castables, prepared with tabular alumina, white fused alumina, fused mullite, etc. as starting materials, are characterized by high refractoriness, good chemical stability, high strength, etc.. The castables with Al2O3≥94% are corumdum castables.
2. The castables are mainly used for on-site casting and off-site precasting for working linings of high temperature refining chemical equipment in chemical and metallurgical industry.
Technical Data
Item | Corumdum mullite series castable refractory cement for Petrolchemical&Coal Chemical Industry | ||
Corundum mullite castables | Corundum castables | ||
CastPA72 | CastPA88 | CastPA94 | |
Long term service temperature,℃ | 1550 | 1600 | 1650 |
Al2O3,% | 72 | 88 | 94 |
SiO2,% | -- | -- | 0.5 |
Fe2O3,% | 0.5 | 0.5 | 0.3 |
Bulk density,g/cm3(110℃×24h) | 2.5 | 2.7 | 2.9 |
CCS,MPa (110℃×24h) | 50 | 50 | 55 |
Linear change rate after heating,% ,(1300℃×3h) | ±0.4 | ±0.3 | ±0.3 |
Packaging & Shipping
Packaging Details: | 25kg or 50kg per small bag or as customer's demand |
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Delivery Detail: | After 7 days with stock, 30 days production and inspection |
Our Services
♥ Research of application basis, new technical process and new technology, development of new product, and technical consultation.
♥ Optimum solution and product supply of refractories for high temperature industries, such as iron&steel, non-ferrous, petrochemical and building materials.
♥ Engineering design, contract and consult for refractories, and civil architecture design.
♥ Research,development, manufacture and sale of superhard materials.
♥ R&D, manufacture and sale of special packing materials for export.
♥ Inspection,supervision and arbitration of refractories.
♥ Consultation and services in refractories information.
♥ Training and cultivation of high-level talents in refractories profession.
- Q:What are the specifications of fireclay bricks?
- 1. The various classification criteria of clay bricks. First, according to the physical and chemical indicators, they can be divided into these types: (NZ) -42, (NZ) -40, (NZ) -38. Second, the classification of specifications of clay bricks is in line with the stipulations in "general shape and size of refractory bricks". Finally, according to the stipulations of relevant state departments, the clay bricks can be divided into standard bricks, ordinary bricks, special-shaped bricks, special bricks. Second, level of refractory temperature of refractory bricks The refractoriness of refractory bricks is divided into four levels according to changes of alumina content. We know that the components in clay bricks include Al2O3. Alkali metals are also included. The refractoriness of AAA-level clay bricks in Ruitai Refractory Material Factory is 1750 ℃; A-level bricks is 1730 ℃; B-level bricks is 1670 ℃; and C-level bricks is 1580 ℃. The softening temperature under a fixed load of Clay bricks is about 1350 ℃. Clay bricks, also known as sintered bricks, are small size artificial bricks for modern architecture. Clay bricks have good properties and high thermal stability, in which Fe2O3 content is less than 2.0 to 2.5%. Overall dimensions: 230 * 115 * 65mm
- Q:What kinds of fireproof materials does the safe use?
- Copper is one of the most widely used material in safe, for its good mechanical performance, corrosion resistance and processibility and it has beautiful color. Especially handles, locks and other decorations forged of copper are smooth, pore-free, also they have good density, and no blisters. They are solid and rust-proof, which can get gilded with 24K gold or gulch-gold and have other surface treatments. A lot of colors have been added to people's home for the copper's magnificence and nobleness.
- Q:How many fire endurance grades are the AAA fire resisting shutter divided?
- According to the fire endurance, the fire doors can be divided into Class A, Class B and Class C fire doors with the fire resistances are not less than 1.20h, 0.90h and 0.60h. Even the fire resistant level of B can also use the first rate fire resistant door.
- Q:What effect does aluminium powder play in refractory bricks?
- Aluminum powder can increase the high melting point of refractory refractory, while increasing material density, hardness and other changes in physical properties of aluminum powder in the application of unshaped refractories in the gas can be discharged in the material, prevent the refractory sudden warming occurred during the burst.
- Q:what's the varieties of fire-proof?sealing?material?
- Fire blocking material currently on the market include: fire stopping board, foam blocking material, flame resisting module, fire-resisting sealant, flexible organic caulking, WXY-II and fire retardant bag, etc. fire-proof?sealing?material is widely used in building construction and can ensure high-temperature flame and smoke from fires not spread to another fire?compartment, different buildings generally use different sealing methods. Pipeline is generaly sealed by pouring concrete board or mortar.
- Q:What material is used for making refractory stone bowl?
- Stone pot is carved from high-quality natural refractory stone with a professional way. It has attractive and diverse appearance, and it is hard, heat fast, not stick food. Now it is used in many hot pot restaurants.
- Q:What's the fire endurance of fire windows?
- That is fire resistance rating, fire-resistant time in the case of fire! It can be basically classified into the following levels and the fire endurance of the fire window is as follows as well: 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. This is in accordance with the latest specification of gb16809-2008 fire windows.
- Q:What kinds of refractory will be used in kiln of sintering ceramics?
- Porcelain has many classes, including acid, alkaline and neutral materials.
- Q:Who knows the fire endurance of B-level fireproof doors and windows?
- B-grade fireproof windows refer to those fireproof windows whose fire retardant limit is not less than 1 hour. Technical requirements: I. Materials and Accessories (1) Window frame should have a certain strength to ensure the integrity and stability of the steel frame or the wood frame. (2) Steel frame and mound layer can employ galvanized?steel?sheet or stainless steel plate. Its selection criteria should be in line with the stipulation of the Article 5.1 of GB12955 "General Technical Requirements of Steel Fireproof Doors". (3) The selection standard of wood frame and mound layer should be in line with the provision of Article 5.1.1 of GB14101 "General Technical Requirements of Wooden Fireproof Doors". (4) Filling materials inside steel frame and wood frame should be non-combustible materials.
- Q:Does refractory belong to stone, building materials or other?
- It belongs to building materials.
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Raw Materials for Refractory:Cement Refractory Cement / High Alumina Cement
- Loading Port:
- China main port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 0 m.t.
- Supply Capability:
- 50000 m.t./month
OKorder Service Pledge
OKorder Financial Service
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