Multi-bore Alumina Ceramic Tube Alumina Ceramic Furnace Tube Alumina Ceramic Tube 99.7% Al2o3

Ceramic and Mullite Ceramic Insulators Tube/Alumina Tube
Standard Alumina Insulators & Mullite insulators Products available in:
1, 2, and 4 Hole Solid Alumina 99.8% ceramicand Mullite ceramic Insulators Tube.
Alumina 99.8%: 99.8% Dense Alumina (Al2O3)
Furnace tube
OD(mm)
25~30
31~40
41~50
51~60
61~70
71~80
81~90
91~100
ID(mm)
19~23
24~32
33~40
41~50
51~60
61~70
71~80
81~90
L(mm)
200~1600
Main performance index
Serial number
performance index
Measuring unit
High purity alumina
Alumina
High alumina
1
Al2O3
%
99.7
99.3
85
2
SiO2
%
less than0.1
—
—
3
Density
g/cm3
3.95
3.88
3.2
4
Wter absorption
%
0
0.01
0.2
5
Cld compressive strength
MPa
450
350
200
6
20 degree Celsius leak rates
Torr/L.sec
less than10-11
less than10-11
less than10-11
7
Twisting in high temperature
mm
1700 degree Celsius 0.2 allowance
1600 degree Celsius 0.2 allowance
1400 degree Celsius 0.2 allowance
8
Bonding in high temperature
1700 degree Celsius non-caked
1600 degree Celsius non-caked
1400 degree Celsius non-caked
9
20—1000 degree Celsius coefficient of
thermal expansion
mm.10-6/degree Celsius.m
8.6
8.2
8.2
10
Thermal conductivity
W/m.k
25
25
25
11
Electric insulation strength
KV/mm
20
20
15
12
20 degree Celsius direct current
insulating resistance
Ohm/cm
1014
1014
1014
13
High-temperature
insulation resistance
1000 degree Celsius MΩ
≥0.08
≥0.08
≥0.08
1300 degree Celsius MΩ
≥0.02
≥0.02
≥0.02
14
Thermal shock resistance
1550 degree Celsius 6 times not cracked
1550 degree Celsius 6 times not cracked
1300 degree Celsius 3 times not cracked
15
Maximum service temperature
degree Celsius
1900
1800
1400Company Information
Chongqing Haichen Instrument Co., Ltd.
Haichen was established in June 2000.
After years of independent research and development, Haichen now possesses strong production capacity, larger production scale, advanced testing equipment, professional technical team. Haichen mainly specializes in manufacturing temperature sensors (thermocouple, thermal resistance, bimetallic thermometer, etc.), (signal)isolators, safety barriers, vibration meter and other instruments and meters; also undertakes selection and design, installation and commissioning work for automatic complete sets of instruments and meters.
With the goal of "quality is the life of the enterprise, users are our God", Haichen strictly checks the quality of products, to provide customers with high quality products and first-rate services.

Certification
Reliable Factory SafetyHigh Quality
We established in 2000 Passed the Explosion-proof quality Passed the ISO9001:2015
system authenticationquality system authenticationPackage & Delivery
We will arrange the goods packaging, choose the transport routes in a fast and economical mode; monitor all goods circulation, track and ensure the quality of transportation; provide fast, safe logistics channels.
Package details:
Normal export packing, carton case or ply wooden case, or according to customer's requirement.
1.Individual packing2.Suitable carton packing3.Plywood case packing
4.Safety wooden case5.Ceramic product packing 6.Pallet packing
Delivery details:
Top urgent order: within 3-4 workdays
General air order: within 6-8 workdays
Sea order: within 18-25 workdaysFAQ
1.Is Haichen company or manufacturer? What is Haichen’s main products?
Haichen is manufacturer. Main products include temperature sensors (thermocouple, thermal resistance, bimetallic thermometer, etc.), signal isolators, safety barriers, vibration meter.
2.What is the quality of Haichen’s products?
Manufacture with advanced technology and reliable quality. We can offer ISO9001, CE.
3. What is Haichen’s warranty?
Replace new products for any wrong, damaged or low-quality products. Generally, the warranty will be 12 months.
4. Does Haichen provide samples? Is it free or charge?
Haichen offers samples, but it’s not free. Customer has to pay the cost of freight.
5. What is the terms of payment?
Paymentless than or equal to5000USD, 100% in advance;
Payment more than 5000USD, 30% T/T in advance, balance before delivery.
Tips:
T/T will cost bank charge: USD30
PayPal will cost bank charge: total price*0.04
Western union no bank charge