Qingdao Leadsun Refractory Co., Ltd
| Cold Crushing Strength | ≥ 50 MPa |
| Payment Terms | L/C,D/P,T/T |
| Material | Calcined Bauxite |
| Temperature Range | above 1300º C |
| Productname | High Alumina Brick |
| Delivery Time | 10-15 DAYS |
| Apparent Porosity | <18% |
| Size | Customers' Requirement |
| Thermal Conductivity | 0.8 - 1.5 W/m·K |
| Supply Ability | 10000 TON/ MONTH |
| Packaging Details | PALLET |
| Processing Service | firing |
| Modulus Of Rupture | ≥ 10 MPa |
| Bulk Density | 1.4 g/cm3 |
| Working Temperature | 1250-1350 |
| Classification | HA60; HA70; HA75; HA80 |
| Manufacturingmethod | Firing at high temperature |
| Operatingtemperature | Up to 1800°C |
| Cold Crush Strength | 40Mpa |
| Model Number | LDS60 LDS65 LDS70 LDS75 LDS80 |
| Place of Origin | CHINA |
| Brand Name | LEASUN |
| Certification | ISO CE |
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Product Specification
| Cold Crushing Strength | ≥ 50 MPa | Payment Terms | L/C,D/P,T/T |
| Material | Calcined Bauxite | Temperature Range | above 1300º C |
| Productname | High Alumina Brick | Delivery Time | 10-15 DAYS |
| Apparent Porosity | <18% | Size | Customers' Requirement |
| Thermal Conductivity | 0.8 - 1.5 W/m·K | Supply Ability | 10000 TON/ MONTH |
| Packaging Details | PALLET | Processing Service | firing |
| Modulus Of Rupture | ≥ 10 MPa | Bulk Density | 1.4 g/cm3 |
| Working Temperature | 1250-1350 | Classification | HA60; HA70; HA75; HA80 |
| Manufacturingmethod | Firing at high temperature | Operatingtemperature | Up to 1800°C |
| Cold Crush Strength | 40Mpa | Model Number | LDS60 LDS65 LDS70 LDS75 LDS80 |
| Place of Origin | CHINA | Brand Name | LEASUN |
| Certification | ISO CE | ||
| High Light | 70% 80% 90% Alumina High Alumina Brick ，High Temperature Resistant High Alumina Fire Brick ，Calcined Bauxite High Alumina Brick | ||
High temperature resistant fire brick engineered for demanding thermal environments. LEADSUN mullite insulating bricks are manufactured from bauxite, mullite, kaolin and other selected raw materials, making them suitable for service temperatures from 1260 ºC to 1550 ºC. Each grade is formulated to meet specific thermal and physical requirements, and after firing the bricks are machined to close dimensional tolerances.
These insulating bricks offer low thermal conductivity, light weight, high porosity, effective thermal insulation and good thermal shock resistance. They are mainly used in industrial equipment linings, insulation layers, kiln door backing, roofs and other high-temperature parts.
Standard sizing: 230 * 114 * 65 mm
| Item | Mullite Insulating Bricks | ||||
|---|---|---|---|---|---|
| Grade | 23 | 26 | 28 | 30 | — |
| Al2O3 (%) | ≥40 | ≥42 | ≥55 | ≥67 | ≥70 |
| Fe2O3 (%) | ≤1.2 | ≤1.0 | ≤1.0 | ≤0.7 | ≤0.6 |
| Bulk Density (g/cm³) | 0.6 | 0.8 | 0.8 | 0.9 | 1.0 |
| Classification Temperature (°C) | 1300 | 1300 | 1400 | 1500 | 1550 |
| Cold Crushing Strength (MPa) | ≥1 | ≥2 | ≥2.3 | ≥2.6 | ≥3.0 |
| Permanent Linear Change (%) * 12 hrs | ≤1.0 | ≤1.0 | ≤1.0 | ≤0.8 | ≤0.8 |
| Thermal Conductivity (W/m·K) | 0.18 (350 ºC) | 0.23 (350 ºC) | 0.25 (350 ºC) | 0.33 (350 ºC) | 0.43 (350 ºC) |
Values shown are typical for each grade. Please contact us for detailed datasheets or customized specifications.
Company Details
Business Type:
Distributor/Wholesaler,Exporter,Trading Company,Seller
Year Established:
2014
Total Annual:
3000000-5000000
Employee Number:
5~20
Ecer Certification：
Verified Supplier
Our products cover heavy & light shaped and unshaped refractories, and are widely used in power, steel & iron, non-ferrous, petrochemicals, building materials and other industries, and are exported to more than 30 countries and regions in Europe, America, Africa, Oceania, Southeast Asia... Our products cover heavy & light shaped and unshaped refractories, and are widely used in power, steel & iron, non-ferrous, petrochemicals, building materials and other industries, and are exported to more than 30 countries and regions in Europe, America, Africa, Oceania, Southeast Asia...
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