Crystallized glass technical data
Typical properties of our crystallized glass slabs, with the test standard for each value. Key results come from laboratory report WT2023B01G01016.
- 0.001 %
Water absorption
JG/T 463-2014
- 96 MPa
Flexural strength
JC/T 872-2019
- 477 MPa
Compressive strength
JC/T 872-2019
- 6.5
Mohs hardness
JG/T 463-2014
Typical properties
| Property | Value | Test standard |
|---|---|---|
| Physical | ||
| Water absorption | 0.001 %Report | JG/T 463-2014 |
| Bulk density | 2.58 g/cm³Report | GB/T 9966.3 |
| Mechanical | ||
| Flexural strength | 96 MPaReport | JC/T 872-2019 |
| Compressive strength | 477 MPaReport | JC/T 872-2019 |
| Mohs hardness | 6.5Report | JG/T 463-2014 |
| Impact strength | 2.9 J | JG/T 463-2014 |
| Impact toughness | 4.2 kJ/m² | JC/T 259-93 |
| Fracture toughness | 1.37 MPa·m½ | GB/T 23806-2009 |
| Abrasion resistance | 7.2 × 10⁻⁴ g/cm² | JG/T 463-2014 |
| Surface | ||
| Gloss (polished) | 95 GU | JC/T 872 |
| Slip resistance (dry / wet) | 0.60 / 0.51 | JC/T 1050-2007 |
| Chemical | ||
| Acid resistance | K = 0.03 %, no visible change | JC/T 872 |
| Alkali resistance | K = 0.04 %, no visible change | JC/T 872 |
| Thermal | ||
| Thermal shock resistance | No cracking | JC/T 872 |
| Linear thermal expansion | 7.1 × 10⁻⁶ /°C | GB/T 3810.8-2016 |
| Safety | ||
| Reaction to fire | Class A1 (non-combustible) | GB 8624-2012 |
| Radioactivity | Class A (internal index 0.2, external index 0.1) | GB 6566-2010 |
Report = result from report WT2023B01G01016 (China Testing & Certification International Group, 2023, 300 × 300 × 10 mm sample). Other values are typical results from our product data sheet.
Sizes, thickness and finishes
- Thickness
- 6–30 mm standard; 4 mm on request
- Standard sizes
- 3000 × 1800 mm · 3000 × 1600 mm · 2800 × 1800 mm · 2800 × 1600 mm
- Maximum width
- 3200 mm
- Finishes
- Matte, Soft gloss, Soft polished, Glossy, High gloss, Lychee (textured), Frosted
- Bulk density
- 2.58 g/cm³ (about 46.4 kg/m² at 18 mm)
- Tolerances
- JC/T 872 industry standard
Technical questions
What do “typical values” mean?
They are measured results on test samples. Water absorption, bulk density, flexural strength, compressive strength and Mohs hardness come from report WT2023B01G01016. The report covers a 300 × 300 × 10 mm sample (2023). Other values come from our product data sheet.
Can I see the test report?
Yes. Request report WT2023B01G01016 in your enquiry. We will send it with the relevant details.
Is the material suitable for facades?
The material has been tested for freeze–thaw, UV ageing and weathering, and is used on building facades. Its reaction to fire is Class A1 (non-combustible) to GB 8624-2012.
Is it suitable for floors?
Slip resistance is 0.60 / 0.51 (dry / wet) to JC/T 1050-2007, and the brochure recommends 6–12 mm slabs for walls and floors. Choose the finish to suit the floor area — tell us the application and we will advise.
Which dimensional tolerances apply?
Slabs are manufactured to the JC/T 872 industry standard. Let us know if your project specifies particular tolerances.