High Alumina Electric Arc Furnace Refractory Brick

• Refractoriness (℃): 1580< Refractoriness< 1770
• Feature: Long Time Materials
• Type: Refractory Material
• Shipping Cost: Estimated freight per unit.: about shipping cost and estimated delivery time.
• Currency: US$
• Return&refunds: You can apply for a refund up to 30 days after receipt of the products.
• Model NO.: LZ65
• Shape: Brick
• Material: Alumina Block
• Al2O3: Min65%
• Application: Electric Arc Furnace
• Brick: High Alumina Brick
• Refractory Material: Fireproof Material
• Transport Package: on Fumigated Wooden Pallets
• Specification: 220/114/64mm or as customer requirement
• Trademark: KAIYUAN
• Origin: China
• HS Code: 690220000
• Production Capacity: 2000 Tons/Month
• Package Size: 1000.00cm * 1000.00cm * 930.00cm
• Package Gross Weight: 1600.000kg

Product Description

High Alumina Electric Arc Furnace Refractory Brick
The Description:
The arc furnace roof is generally constructed with high-aluminum bricks, and the alumina content is between 75% and 85%. Compared with silicon bricks, high-aluminum bricks are characterized by high refractoriness, good thermal shock resistance and high compressive strength. Due to the rich bauxite resources in China, high-alumina bricks have become the main refractories for electric arc furnace tops, and their life is about 2-3 times that of silicon brick roofs. With the development of large ultra-high power electric furnaces, the service life of high aluminum bricks is also declining, leading to the further use of alkaline bricks such as fired or non-fired magnesium bricks and magnesium-chromium bricks. It can also be hoisted by merchants casting refractory prefabricated parts, which has the advantages of convenient construction, good integrity, strong resistance to arc radiation, and resistance to acute cooling and heat, etc. compared with ordinary masonry furnace tops.
The Physcial and Chemcial Index of A Series of High Alumina Electric Arc Furnace Refractory Brick

Index	High Alumina Brick						Phosphate combined high alumina brick		Spallling resistance high alumina brick
	LZ-48	LZ-55	LZ-65	LZ-70	LZ-75	LZ-80	P	PA	GKBL-70	KBL-70
Al2O3 % ≥	48	55	65	70	75	80	75	77	70	70
Fe2O3 ≤							3.2	3.2
ZrO2         ≥									6
0.2Mpa RUL ºC  ≥	1420	1450	1500	1510	1520	1530	1300	1300	1470	1470
P.L.C%	0.1-0.4	0.1-0.4	0.1-0.4	0.1-0.4	0.2-0.4	0.2-0.4			0.1-0.2	0.1-0.2
Cold crushing strength  MpaºC ≥	22	22	24	24	24	21			22	20
BD   g/cm3							2.7	2.75	2.55	2.55

Application:
When building the top of the furnace, the force must be balanced and appropriate expansion joints must be left in the radial and circumference. Bake before use. When spalling damage occurs during smelting operation, it is appropriate to use a lower grade of brick, and when melting erosion damage is main, it is appropriate to use a higher grade of brick. And in the continuous high temperature smelting, add the top of the furnace lid blowing ash
Company main products and profiles:

 

Why choose us?

Zhengzhou Kaiyuan Refractories Co., Ltd is a manufacturer of silicon-aluminum refractory (fireclay brick, high alumina brick, silica brick, mullite brick, corundum brick, insulation brick, castable, mortar) for coke oven, blast furnace, hot blast stove, heating furnace, anode baking furnace, boilers and other industrial furnaces for 20 years located in Henan, China.

Our total annual production capacity is about 100,000 tons of dense-shaped refractory product, and 100,000 tons of monolithic refractory product.
We have three tunnel kilns for silicon-aluminum dense bricks and one new plant for the monolithic refractory.
We're sure our custom-made products and professional services will bring you a stable quality supply and more profit.

Our Laboratory and R&D Center

We have test equipment for the following items:
chemical %
bulk density
apparent porosity
cold crushing strength
modulus of rupture
refractoriness under load
creep
thermal expansion
Reheat linear change
thermal shock resistance
thermal conductivity

 

 

Contract Kiln Construction


FAQ

1. Are you a Manufacturer or trader?
A: We are manufacturer and our plant is located in Xinmi city, Henan, China

2. Can we visit your company?
A: You are warmly welcome to visit our company at anytime, you'll not regret of the visiting.

3. Do you accept OEM?
A: Yes, we do OEM.

4. What's the MOQ of trial order?
A: We care about all the potential customers and take all the trails orders.

5. What is the payment term?
A: TT, LC, DP, DA.

6. How long is the delivery time?
A: Usually within 35 days after down payment.

7. Do you accept third party inspection ?
A: Yes for sure, we accept the third party inspection before delivery.

8. What is your after-sell service?
A: The rejected goods can be replaced or we can make compensation for it. We can send technical engineers to the end user for technical issue.

9.What is your company's certification?
A: ISO9001 certificate