| Density (g/cm3) | 2.203 |
| Modulus of Elasticity (MPa) | 7.25x104 |
| Poisson's Ratio | 0.17 |
| Compressive Strength (MPa) | 1150 |
| Tensile Strength (MPa) | 50 |
| Bending Strength (MPa) | 67 |
| Mohs Hardness | 5.5~6.5 |
| Micro Hardness | 8000~9000 |
Company profile
Founded in 1998, Beijing Zhong Cheng Quartz Glass Co., Ltd. (ZCQ
for short) represents a high-tech supplier manufacturing quartz,
optical glass, crystal glass products and molding tools located in
Changping District, Beijing, China. Our main customers are from
overseas countries and mainland China. ZCQ's products are widely in
the lines of semiconductors, electronics, coating, laser,
chemicals, medical treatment, spaceflight, optical resources,
laboratory research, mechanical equipment and others.
We mainly supply:
1. Quartz Products
2. Optical Glass
3. Crystal Glass
4. Some plastic and metal molding tools
In Type 1 Quartz Glass, we are supplying:
a. Quartz discs, windows, flats, plates, rings, substrates, wafers,
fringes, and panels: both in fine polishing, fine grinding or
commercial polishing and grinding; in transparent, nontransparent
or opaque statuses
b. CNC Quartz components and parts:
Through CNC design and software control, the Quartz parts can be
precisely fabricated especially in doing arcs, slopes, slots,
spheres, holes and cones, and taking 3D and angle processing in
accordance with clients' own designs.
c. Quartz labware made by thermal treatment:
Tubing, apparatuses and various customer-designed labware can be
made.
d. Sio2 Targets (Silicon Dioxide Sputtering Targets): as a thin
film and composite coating material for vacuum coating:
Purity: Containing SIO2 of 99.95%-99.9999%
Characteristics: High Purity; Low Air Bubble Density; Low Impurity
Content
Category: Grains, Wafers, Discs, Panels, Plates, Rings, and Blocks
In Type 2 and 3 Optical Glass, we are supplying:
a. BK7 glass
b. B270 glass
c. F-series glass
d. Float glass
e. CaF2 glass
f. Quartz Crystal
g. Optical Coating (AR, UV Filters)
h. Other various optical materials
Some typical products:
1. High Precision Windows
Dimension Tolerance: plus/minor 0.1mm ~ plus/minor0.01mm
Flatness: fringe ~ fringe /10
Surface Quality: 60/40 ~ 10/5
2. Ultra Thin Windows
Custom-Made Length / Width / OD by Thickness 1mm ~ 0.05mm
3. High Reflective Coating (HR), Anti-Reflection Coating, Protected
Aluminum, and Protected Gold
In Type 4 molding tools, we are supplying:
Through CNC design and control, the metal and plastic molding tools
and tooling fixtures for customers' mass production of their
products, such as aluminum, copper, metal and others.
We welcome clients both in domestic and overseas markets to contact
us for an inquiry and friendly collaboration!
