Main technical indexes:
Item | Unit | Value | Standard |
Volume density | G/cm3 | 2.3-2.6 | HG/T3210-1986 |
Water adsorption | % | <0.2 | GB8488-87 |
Bending strength | Mpa | ≥60 | GB8488-87 |
Compressive strength | Mpa | 200 | HG/T3210-1986 |
Acute coldness/heat resistance | 350-20°C | not crack after 3 times | GB8488-87 |
Comprehensive porosity | % | ≥65 | |
Specification | m | 2.8, 3.4, 5, 7.5 | |
Acid resistance | % | ≥99.8 | HG/T3210-1986 |
Alkali resistance | % | >87 | GB/T4134.2-1984 |
Flexure error | % | GB/T8488-2001 |
Remark:
1. The product can be manufactured in accord with the technical indexes required by cilents.
2. The external surface is smooth, without cracks or flaws.