Introduction:
0Cr21Al6 furnace wire is a high-temperature alloy material, mainly
composed of chromium (Cr) and aluminum (Al), with a chromium
content of approximately 21% and an aluminum content of
approximately 6%. This alloy has excellent oxidation resistance and
high temperature resistance, and is often widely used in fields
such as electric furnace heating elements and thermocouples.
0Cr21Al6 furnace wire has good chemical stability and is not prone
to oxidation, corrosion and deformation in high temperature
environments. It has a high melting point (about 1500 degrees
Celsius) and can withstand long-term use under high temperature
conditions. In addition, the grate bar has a low coefficient of
linear expansion, allowing it to maintain good stability during
thermal cycling.
The alloy material has high thermal conductivity, which helps to
conduct heat quickly and improve heating efficiency. It also has
high tensile strength and yield strength, and can withstand large
mechanical stress at high temperatures. At the same time, the grate
bar has a certain elongation rate, making it more flexible and
easier to operate during processing and installation.
Parameter:
Chromium (Cr): approximately 21% by mass
Aluminum (Al): approximately 6% by mass
Other elements: mainly iron (Fe) and impurity elements, such as
manganese (Mn), silicon (Si), etc.
Density: approximately 7.10 g/cm3
Melting point: approximately 1500 degrees Celsius
Thermal Conductivity: Approximately 13-15 Watts/meter Kelvin
(around room temperature)
Linear expansion coefficient: approximately 13×10^-6/degrees
Celsius (within room temperature range)
Tensile strength: about 600-800 MPa
Yield strength: about 280-450 MPa
Elongation: approximately 10-25% (at room temperature)
item | value |
Place of Origin | Jiangsu,China |
Type | Fe-Cr-Aluminum Ribbon |
Application | Industry Furnace |
Conductor Material | ferro alloy |
Certificate | ISO9001 |
Thermal conductivity: | 15 W/(m.K) (20ºC) |
Executive standard | GB/T1234-2012 |
Dimensions | User's Demand |
Size | 0.56-5mm |
shape | shaped strip |
width | 6-50mm |
Packing | Pallet |
highest temperature | 1400ºC |
melting point | 1520ºC |
Alloy Nomenclature Performance | 1Cr13AL4 | 0Cr25Al5 | 0Cr21AL6 | 0Cr23Al5 | 0Cr21Al4 | 0Cr21Al6Nb | 0Cr27Al7Mo2 |
Main Chemical composition
| Cr | 12.0-15.0 | 23.0-26.0 | 19.0-22.0 | 20.5-23.5 | 18.0-21.0 | 21.0-23.0 | 26.5-27.8 |
Al | 4.0-6.0 | 4.5-6.5 | 5.0-7.0 | 4.2-5.3 | 3.0-4.2 | 5.0-7.0 | 6.0-7.0 |
Re | opportune | opportune | opportune | opportune | opportune | opportune | opportune |
Fe | Rest | Rest | Rest | Rest | Rest | Rest | Rest |
| | | | | | Nb0.5 | Mo1.8-2.2 |
Max. continuous service temp. of element(°C) | 950 | 1250 | 1250 | 1250 | 1100 | 1350 | 1400 |
Resistivity at 20ºC(μΩ·m) | 1.25 | 1.42 | 1.42 | 1.35 | 1.23 | 1.45 | 1.53 |
Density(g/cm3) | 7.4 | 7.1 | 7.16 | 7.25 | 7.35 | 7.1 | 7.1 |
Thermal conductivity(KJ/m·h·ºC) | 52.7 | 46.1 | 63.2 | 60.2 | 46.9 | 46.1 | -- |
Coefficient of lines expansion(α×10-6/ºC) | 15.4 | 16 | 14.7 | 15 | 13.5 | 16 | 16 |
Melting point approx.( ºC) | 1450 | 1500 | 1500 | 1500 | 1500 | 1510 | 1520 |
Tensile strength(N/mm2) | 580-680 | 630-780 | 630-780 | 630-780 | 600-700 | 650-800 | 680-830 |
Elongation at rupture(%) | >16 | >12 | >12 | >12 | >12 | >12 | >10 |
Variation of area(%) | 65-75 | 60-75 | 65-75 | 65-75 | 65-75 | 65-75 | 65-75 |
Repeat Bending frequency(F/R) | >5 | >5 | >5 | >5 | >5 | >5 | >5 |
Hardness(H.B.) | 200-260 | 200-260 | 200-260 | 200-260 | 200-260 | 200-260 | 200-260 |
continuous service time(Hours/ ºC) | -- | ≥80/1300 | ≥80/1300 | ≥80/1300 | ≥80/1250 | ≥50/1350 | ≥50/1350 |
Micrographic structure | Ferrite | Ferrite | Ferrite | Ferrite | Ferrite | Ferrite | Ferrite |
Magnetic properties | Magnetic | Magnetic | Magnetic | Magnetic | Magnetic | Magnetic | Magnetic |
Characteristic:
- High resistance performance: 0Cr21Al6 heater wire has high
resistivity, providing stable resistance characteristics.
- Excellent anti-oxidation performance: In high temperature
environments, 0Cr21Al6 heater wire can form a dense oxide protective film to effectively prevent
further oxidation reactions.
- Corrosion resistance: 0Cr21Al6 heater wire has good corrosion resistance to many common corrosive media.
- Mechanical properties: 0Cr21Al6 heater wire has certain elasticity and plasticity, and is easy to process and
shape.
- Long life: Due to its excellent high temperature resistance and
anti-oxidation properties, 0Cr21Al6 heater wire has a long service life.
Specific applications:
- Industrial heating equipment: 0Cr21Al6 heater wires are widely used in various industrial heating equipment, such as
electric furnaces, hot air furnaces, ovens, etc., to provide stable
heating effects.
- Heat treatment industry: During the metal heat treatment process,
0Cr21Al6 heater wires are used as heating elements to ensure the precise heating
temperature and treatment effect of metal materials.
- Home appliance field: 0Cr21Al6 heater wires are used as heating elements in household appliances, such as
electric water heaters, electric furnaces, etc., to provide fast
and uniform heating effects.
- Laboratory equipment: Heating equipment and heat treatment
equipment used in laboratories, such as experimental furnaces,
ovens, etc.
Customization:
- Diameter: The common diameter range of 0Cr21Al6 heater wire is from 0.5mm to 10mm.
- Width and thickness: The common width range of rectangular heater wire is from 0.1mm to 10mm, and the thickness is determined according to
needs.
- Length: The length of the heater wire can be customized according to the customer's specific needs.
Q&A:
What is the maximum operating temperature of 0Cr21Al6 furnace wire?
The maximum working temperature of 0Cr21Al6 furnace wire can reach
1350℃, which has excellent high temperature resistance.
What is the difference between 0Cr21Al6 furnace wire and 0Cr21Al4
furnace wire?
Compared with 0Cr21Al4 furnace wire, 0Cr21Al6 furnace wire has a
higher aluminum content, so it has better oxidation resistance and
high temperature resistance.
What are the common specifications of 0Cr21Al6 furnace wire?
Commonly used specifications for 0Cr21Al6 furnace wire include
circular furnace wire with a diameter of 0.5mm-10mm and rectangular
furnace wire with a width of 0.1mm-10mm. The length can be
customized according to needs
