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Clear Quartz Testing Sheet Ultra-thin Optical Grade Circular Shape SJ Brand Model SJ 077 High Thermal Conductance Welding
Product Description
The Free Services You Can Enjoy
We will create CAD drawings or solutions within 2 hours based on your description, application scenarios, and in combination with the product.
Accept customize according to different diameter, thickness, length or sending your drawing.
Our designers have up to 15 years of work experience and are capable of formulating the correct solutions based solely on your usage scenarios.
Please feel free to communicate with us to ensure that your needs are addressed!
| Specification: | Based on drawings or require customization. |
| Material | More than 99.99% SiO2 |
| Customized Service | Ends closing, sand blasting, polishing, bending, cutting, pinching, burning mouth and so on |
| Density g/cm³ | 2.2 |
| Maximum operating temperature | 1120°C |
| Tolerance control | min: ±0.01mm (Adjust according to the actual situation) |
* For properties not mentioned in the table, please consult customer service
Thermal Properties
| Coefficient of Expansion (20°C-350°C) | 5.5 × 10-7 / °C |
| Thermal Conductivity (W/m·°C, 20°C) | 1.4 |
| Specific Heat (J/kg, 20°C) | 670 |
| Softening Point (viscosity) | 1730°C |
| Annealing Point | 1215°C |
| Deformation Temperature (long time heat retaining) | 1120°C |
Electrical Properties
| Electrical Resistivity (350°C, ohm-cm) | 7 × 107 |
| Insulating Strength (20°C, KV/cm) | 250 - 400 |
| Dielectric Constant | 3.7 |
Corrosion Amount
| H2SO4 | Density 1.84, 2h, 20°C, g/cm²: 1.4 × 10-8 |
| HNO3 | Density 1.4, 2h, 20°C, g/cm²: 5 × 10-8 |
| HCL | Density 1.19, 2h, 20°C, g/cm²: 15 × 10-8 |
| NaOH | 1%, 2h, 110°C, g/cm²: 166 × 10-6 |
| KOH | 1%, 2h, 98°C, g/cm²: 68 × 10-6 |
Mechanical Properties
| Density g/cm³ | 2.2 |
| Compression Strength N/mm² | 1100 |
| Bending Strength N/mm² | 67 |
| Tension Strength N/mm² | 48 |
| Micro Hardness N/mm² | 8600 - 9800 |
| Moh's Hardness | 5.5 - 6.5 |
* For properties not mentioned in the table, please consult customer service
Q1:
Can I have a sample order?
Yes, we welcome sample order to test and check quality.
Q2:
What about the delivery time?
Within 15 days after receiving deposit.
Q3:
Do you have any MOQ limit?
Low MOQ, 1pc for sample checking is available.
Q4:
How to proceed an order in your factory?
Firstly let us know your requirements or application. Secondly, we quote according to your requirements or our suggestions. Thirdly, customer confirms the samples and places deposit for formal order. Fourthly, we arrange the production.
Q5:
How do you ship the goods and how long does it take to arrive?
DHL, UPS, FedEx or TNT are optional for small order. It usually takes 3-5 days to arrive. Airline and sea shipping are also available.
