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Help CenterBeijing Borosilicate Test Tube/glass Tubing
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Beijing Borosilicate Test Tube/glass tubing
Dimension:
Outer Diameters |
0.1 mm to 100mm |
Inner Diameters |
0.07mm~Specified D |
Lengths |
1mm to specified L |
OD & ID Tolerance |
To 1.5%--3%mm |
Products features:
Clear and clean,
High homogeneity
High temperature resistant
High light transmission
Anti chemistry attack
Working temperature:
Regular working temperature: 1000°C
Working temperature for short term:1100°C
instant working max temperature:1300°C
Mechanical Property:
Mechanical Property |
Reference Value |
Mechanical Property |
Reference Value |
Density |
2.203g/cm3 |
Refractive Index |
1.45845 |
Compressive Strength |
>1100Mpa |
Coefficient of thermal expansion |
5.5×10-7cm/cm.°C |
Bending Strength |
67Mpa |
Hot work temperature |
1750~2050°C |
Tensile Strength |
48.3Mpa |
The temperature for a short time |
1300°C |
Poisson's Ratio |
0.14~0.17 |
The temperature for a long time |
1100°C |
Elastic Modulus |
71700Mpa |
Resistivity |
7×107Ω.cm |
Shearing Modulus |
31000Mpa |
Dielectric Strength |
250~400Kv/cm |
Moths Hardness |
5.3~6.5(Moths Scale) |
Dielectric Constant |
3.7~3.9 |
Deformation Point |
1280°C |
Dielectric absorption coefficient |
<4×104 |
Specific Heat(20~350°C) |
670J/kg °C |
Dielectric loss coefficient |
<1×104 |
Thermal Conductivity(20°C) |
1.4W/m °C |
|
|
Use Notices
1. Do not operate in temperature beyond quartz maximum working temperature for long time.
Otherwise, products will deform crystallization or become softening.
2. Clean the quartz products before high temperature environment operation .
Firstly soak the products in 10% hydrofluoric acid, then wash it with high purity water or alcohol .
Operator should wear thin gloves , direct touch with the quartz glass by hand is inhibited.
3. It is wise to extend the lifespan and thermal resistance of quartz products via continuous use
within high temperature environment. Otherwise, interval use shall shorten products lifespan.
4. Try to avoid touch with alkaline substances (such as water glass, asbestos, potassium and sodium compounds, etc.)
when employing quartz glass products in high temperature, which is made of acid material.
Otherwise product anti- crystalline properties will be greatly reduced.
package: protection paper, green air bag, air film, carton ,
safe and ecnomic even for freight collect as well.
Shipping methods and charges:
China post(15-25days)
Epacket to USA (10-15days)
EMS(7-10days)
Fedex(5-7days)
DHL(5-7days)
Actual shipping charge will be calculated upon product weight.
1.Based in Beijing, heart of China, ZCQ is a technology and quality oriented manufaturer with 20 years history.
2.With senior engineer supervise, we are glad to advise customers on pressure, temperature etc application and engineering questions.
3.ZCQ accepts second production in case some products don’t meet requirements.
4.1 hour from international meeting center of Beijing, ZCQ invites guests to visit our company after long day meeting and get relaxed in nature. Our company is also sitted in arms of mountains and river.
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