Refractory Raw Materials-High Chrome Casting Bars

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Loading Port:
Tianjin
Payment Terms:
TT OR LC
Min Order Qty:
20 m.t.
Supply Capability:
1000 m.t./month

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Product Description:

High chrome alloyed casting bar:
1: High hardness
2: Little breakage
3: Low wear rate
4: Good wear-resistant
5: Quality superior

High chrome alloyed casting bar

Our products used in many field, such as, cement, power, industry, chemical, mine, station and so on. The new products is high hardness, little breakage, low wear rate, good wear-resistant, our annual production capacity is more than 30, 000 metric tons. Guoyang wear-resisant materials are making frist class corporation brand.

Specification:

Φ 8; Φ 10; Φ 12; Φ 14; Φ 16; Φ 18; Φ 20; Φ 20*25; Φ 25*30; Φ 30*35; Φ 35*40.


ITEM

Designation

Chemical      Composition

C

Si

Mn

Cr

Mo

P

S

Popular

Grade



ZQCr10

1.8-32

0.3-1.2

0.2-1.0

10-13

Trace

0, 10

0.10

  Cu

Ni

Nb

Ti

B

Zr

V

Trace

Trace

Trace

Trace

Trace

Trace

Trace

Hight Chromim Cast Grinding Bars

ZQCr26

2.0-30

≤ 1.0

0.2-1.0

22-28

≤ 1.0

≤ 0.10

≤ 0.08

ZQCr20

2.0-3.0

≤ 1.0

0.2-1.0

18-22

≤ 1.0

≤ 0.10

≤ 0.08

ZQCr17

2.0-3.2

≤ 1.0

0.2-1.0

13-18

≤ 1.0

≤ 0.10

≤ 0.08







 


    ITEM

Designation

                    Hardness(HRC)

Microstruture

Quenched state(A)

  Quenched state(A )

Popuar Grade

ZQCr10

        ≥ 58

                  ≥ 50



M+C

M-Martensite

C-Carbide

High Chromium Cast

Grinding

Balls

  ZQCr26

        ≥ 58

                    ≥ 45

  ZQCr20

        ≥ 58

                  ≥ 45

  ZQCr17

        ≥ 58

                  ≥ 49

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Q:Is it normal for caable fire resistant material to catch on fire?
Abnormal; aging is certainly one of the cause of the fire. That is caused only because of poor insulation and aging caused by short circuit, but a more important reason is configuration of air switch does not meet the requirements. If the capacity of air switch equals that of the cable, trip will happen at the moment when current is overloaded, not causing a short circuit or over current fire.
Q:What is the biggest difference between refractory bricks and clay refractory bricks? Where can I find information on the refractory bricks?
You can look up knowledge manual of refractory material to find phosphatic material, etc. Xinjiang refractory bricks, castable refractory, refractory material, silicious, corundum and alumina-magnesia: High alumina and clay refractory bricks can be divided into
Q:How many grades of fire rating are there for interior decoration materials?
It can be divided into construction classification and fire resistance rating. Fire prevention for buildings. Fire prevention measures should be taken in the architectural design to prevent fires and reduce fire hazards to life and property. Building fire protection includes two aspects: fire prevention before fire disaster and measures in fire disaster, among which the former is mainly to confirm the fire resistant rating and fire-resistant structure.
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:Is it necessary for the frame of glass fireproof door to be crammed with fire-proof material?
Close the door , and check if the gap is normal, whether the hole and the door leaf are in the same plane, and whether the door leaf has tendency to fall down. Fire resistance steel door——means that use a cold rolled steel sheet as door frame, door plank and framework, and stuff a door leaf with incombustible material. If it is glass fireproof door, then the door frame should be equipped with fire-proof materials. I know a exclusive shop in Beijing dealing with fireproof doors, called Naecame.
Q:Is fireclay poisonous?
Refractory materials are typically oxides, alumina, magnesium oxide and aluminate cement and etc, which are non-toxic.
Q:How is the grading of the level A new material fire insulation material?
The standard to distinguish level A and level B is the different fireproofing coefficient. The level A is non-combustible. The level B is divided into B1, B2 and B3. B1 is flame retardant, B2 combustible and B3 flammable. The level A is commonly phenolic aldehyde, rock wool, thermal mortar, foam ceramics, foam glass and foam concrete on the current market. Among the advantages of level A materials, the biggest one is foam concrete currently, also known as foam cement, which the Xuzhou Green Year EEB company's main produces.
Q:What is the limit of fireproof rolling shutter?
Fireproof rolling shutter door is a kind of fire protection and heat insulation facility which is suitable for the large openings of buildings, having a certain effect on the design and installation. Fire shutter doors are widely used in fire partition of industrial and civil building. It can effectively prevent the spread of fire, to protect the safety of life and property. It is an indispensable modern building fire facilities. According to the national standard 14102-2005 GB standard, the provisions of 14102-2005 GB specify that: If fire resistance limit of fire resisting shutter is no less than 3 hours, it is AAA fireproof rolling shutter. Therefore, the fire resistance limit of AAA grade fireproof rolling shutter should be 3 hours.
Q:Which industry does refractory belong to? Does it belong to construction industry?
I do not recognize all the answers. No matter what kind of refractory can be used in construction. Biulding syove or kiln is construction. So personally, it belongs to construction indusrty.
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!

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