SiO2:≧ 96%(BG-96A) / 96%(BG-96B) / 95%(BG-95)
Fe2O3:≤ 0.6%(BG-96A) / 0.8%(BG-96B) / 1.0%(BG-95)
Apparent Porosity:≤ 21%(BG-96A) / 22%(BG-96B) / 22%(BG-95)
True Specific Gravity:≧2.34g/cm3(BG-96A) / 2.34g/cm3(BG-96B) / 2.34g/cm3(BG-95)
TCold Crushing Strength:≧40Mpa (BG-96A) / 35Mpa(BG-96B) / 30Mpa(BG-95)
Introduction
With a skilled and experienced technical team which focused on silica refractories development and production for 30+ years,MERC guarantee to offer extraordinary silica bricks.
Features
High purity raw material, low fluxing agents Al203+2(K20+Na20)<0.5%;
residual quartz less than 1%, accurate dimension, thickness tolerance ±0.5mm.
Application
Glass Furnace Construction Projects
specification
| Properties | Unit | Value | |||
| BG-96A | BG-96B | BG-95 | |||
| Chemical Composition | SiO2 | % | ≥96.0 | ≥96.0 | ≥95.0 |
| Fe2O3 | % | ≤0.6 | ≤0.8 | ≤1.0 | |
| Al2O3+2(K2O+Na2O) | % | ≤0.5 | ≤0.7 | - | |
| True Specific Gravity | g/cm³ | ≤2.34 | ≤2.34 | ≤2.34 | |
| Apparent Porosity | % | ≤21 | ≤22 | ≤22 | |
| Cold Crushing Strength | Mpa | ≥40 | ≥35 | ≥30 | |
| Refractoriness Under Load | T0.5 | ℃ | ≥1680 | ≥1680 | ≥1670 |
| Permanent Linear Change | 1450℃×2h | % | 0-0.2 | 0-0.2 | 0-0.2 |
| Residual Quartz | % | ≤1 | ≤1 | ≤1 | |
| Dimension Tolerance | Wedge brick | ≤100mm | ±0.5mm |
| Size | ≤100mm | ±0.5mm | |
| Size | 100mm~≤350mm | ±1mm | |
| Size | >350mm | ±1.5mm | |
| Warpage | Brick length or crown height | ≤525mm | ≤1mm |
| Brick length or crown height | >525mm | ≤1.5mm | |
| (a+b+c) Corner Damage | Hot surface | -- | ≤15mm, (Two damages accept) |
| Normal surface | -- | ≤25mm, (Two damages accept) |
|
| (e+F+g) Edge Damage | Hot surface | -- | ≤15mm, (One damages accept) |
| Normal surface | -- | ≤30mm, (Two damages accept) |
|
| Crater Diameter | Hot surface | -- | Not Allowed |
| Normal surface | -- | ≤4mm | |
| Length of Crack | Width≤0.1mm | -- | Allowed |
| Width 0.11~0.25mm | Hot surface | ≤20mm | |
| Normal surface | ≤40mm | ||
| Width 0.26~0.5mm | Hot surface | Not Allowed | |
| Normal surface | ≤20mm | ||
| Width>0.5mm | -- | Not Allowed | |
| Lamination | -- | -- | Not Allowed |
Online consultation
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