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Specifications
alumina brick:1.Low thermal conductivity
2.high temperature resistance
3.excellent insulation
4.acid-base erosion resistant
Fire Brick-Alumina Brick, Insulation Brick
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Surya Thermal Insulation Material Co., Ltd. mainly exports all kinds of industry insulation materials and refractory materials required by customers.
The calcium silicate boards we produced feature high temperature and low temperature resistance. Annual output is 30000 cubic meters.
Products are used for processing equipment, piping and furnace because of thermal insulation and soundproof and fireproof characteristics. They are applied in electric power, metallurgy, prettification, construction and vessel fields.
With professional technicians and excellent team members, Tthe products from our company got good evaluation from customers.
We sincerely welcome you to negotiate business with us. You will get super products and super service from our company.
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Heat?insulation?refractory?bricks?is?my?company?the?American?advanced?standard?reference?to?the?development?and?
production?of?a?kind?of?high?efficient,?energy?saving,?high?grade?product.?The?products?have?been?widely?used?in?
metallurgical?hot?dip?galvanized?furnace,?silicon?steel?processing?furnace,?blast?furnace?stove;?The?petrochemical?
industry?ethylene?cracking?furnace,?hydrogen?furnace,?a?transformation?furnace,?sulfur?recovery?units;?And?other?such?
as?roller?kiln,?spindle?type?kiln,?prevent?(fight)?carburizing?(n)?the?stove?and?so?on?thermal?device,?and?satisfactory?
results.
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Product?features?:
1.?High?temperature?resistant,
?2.?Performance?is?good,
?3.?High?strength,
?4.?Show?low?porosity,
?5.?An?acid,?alkali?resistant,?aggressive?good,?etc
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Product?application:
Mainly?used?for?thermal?boilers,?cement?kiln,?glass?furnace,?gas?furnace,?fertilizer,?blast?furnace?hot-blast?stove,?coking?furnace,?electric?furnace,?casting?and?casting?steel?brick
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Technical?parameters:
Al2O3% | >45 |
SiO2% | 40 |
Fe2O3% | <1.0 |
?CaO | 1.7 |
Normal?temperature?the?flexural?strength?MPa | 1.0-1.3 |
Volume?density?% | 0.52-1.25 |
Normal?temperature?compression?strength?MPa | 1.2-3.4 |
Softening?temperature?°C | 1250 |
Thermal?shock?stability?(water)?times?/?1000?degrees?air?cold? | >15 |
Coefficient?of?thermal?conductivity?W?/?(m.k)?350?degrees?+-10?degrees | -1 |
Heavy?burn?line?change?% | -1 1300*12h |
The?highest?use?°?C?temperature? | 1230-1760 |
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Item | Unit | Index | ||||
? | ? | LZ-75 | LZ-65 | LZ-55 | LZ-48 | |
Al2O3≥ | % | 75 | 65 | 55 | 48 | |
≥?refractoriness | °C | 1790 | 1790 | 1770 | 1750 | |
≥?softening?temp?under?0.2?Mpaload | °C | 1520 | 1500 | 1470 | 1420 | |
Liner?change?of?heating | 1500°C,?2h | % | +0.1???????????????????????????????-0.4 | ? | ||
1450°C,?2h | ? | +0.1???????????????????????????????-0.4 | ||||
≤?porosity | % | 23 | 22 | |||
≥?pressure?resistance?at?normal?temp | Mpa | 53.9 | 49.0 | 44.1 | 39.2 | |
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