Product Name: FeCrAl flat wire Size: Customized Size Surface：Acid Pickling/Bright Chemical composition：Fe,Cr,Al Resistivity：1.45 x 10 ^ -6Ω·m Maximum operating temperature：1200 ° C - 1400 ° C Tensile strength: 500-1000 MPa Density：7.16g/cm³
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Products Description
FeCrAl flat wire is a type of metal alloy wire commonly used for high-temperature heating applications. Common grades include 1Cr13Al4, 0Cr15Al5, 0Cr19Al3, 0Cr21Al4, 0Cr21Al6, 0Cr23Al5, 0Cr25Al5, and 0Cr21Al6Nb. These grades represent different alloy compositions and performance characteristics. For example, 1Cr13Al4 contains 13% chromium and 4% aluminum, while 0Cr21Al6Nb contains 21% chromium, 6% aluminum, and an appropriate amount of niobium. These alloys have high electrical resistivity, excellent high-temperature stability, and good oxidation resistance, and can work stably for a long time in high-temperature environments above 1200 ° C. FeCrAl flat wire is commonly used as a heating element in industrial heating equipment, household appliances, and the automotive industry, providing fast and uniform heating effects, making it an ideal choice for many applications.
Key Characteristics of FeCrAl Flat Wire.
High Temperature Resistance: FeCrAl alloys are stable at extremely high temperatures, typically 1200°C to 1400°C (2192°F to 2552°F). This makes them ideal for use in high-temperature heating elements.
Excellent Oxidation Resistance: The combination of chromium and aluminium allows FeCrAl alloys to form a dense oxide protective film (primarily aluminium oxide Al2O3) at elevated temperatures to prevent further oxidation. This property is particularly important in high temperature oxidising environments such as electric furnaces, industrial heaters and combustion systems.
Electrical Resistivity: FeCrAl alloys have a high electrical resistivity, which allows them to efficiently convert electrical energy into heat in electric heating elements. Its resistance stability is also good at high temperatures.
Mechanical Strength: The alloy has good mechanical strength and toughness at elevated temperatures, and is able to withstand prolonged thermal cycling and high-temperature stresses without deformation or fracture.
Composition.
Iron (Fe): The main component, providing basic strength and toughness.
Chromium (Cr): Typically 15-25%, enhances the oxidation and corrosion resistance of the alloy.
Aluminum (Al): Typically 4-6%, forms a protective film of aluminium oxide at elevated temperatures, providing additional protection against oxidation.
Parameter：
Alloy Nomenclature Performance | 1Cr13Al4 | 0Cr25Al5 | 0Cr21Al6 | 0Cr23Al5 | 0Cr21Al4 | 0Cr21Al6Nb | 0Cr27Al7Mo2 | |
Chemical Compostion (%) | 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 | |
-- | -- | -- | -- | -- | -- | -- | ||
Max.Continuous service temp. of element | 950 | 1250 | 1250 | 1250 | 1100 | 1350 | 1400 | |
Resistivity at 20C(μΩ.m) | 1.25 | 1.42 | 1.42 | 1.35 | 1.23 | 1.45 | 1.53 | |
Density(g/cm) | 7.4 | 7.1 | 7.16 | 7.25 | 7.35 | 7.1 | 7.1 | |
Thermal Conductivity(KJ/m.h) | 52.7 | 46.1 | 63.2 | 60.2 | 46.9 | 46.1 | -- | |
Coefficient of lines expansion(αx10-6/℃) | 15.4 | 16 | 14.7 | 15 | 13.5 | 16 | 16 | |
Melting Point Approx(degree) | 1450 | 1500 | 1500 | 1500 | 1500 | 1510 | 1520 | |
Tensile Strength(N/mm) | 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 | ≥80/1350 | ≥80/1350 | |
Micrographic structure | Ferrite | Ferrite | Ferrite | Ferrite | Ferrite | Ferrite | Ferrite | |
Magnetic properties | Magnetic | Magnetic | Magnetic | Magnetic | Magnetic | Magnetic | Magnetic | |
Shape | Size (mm) |
Wire | 0.05-7.5 |
Rod | 8-50 |
Ribbon | (0.05-0.35)*(0.5-6.0) |
Strip | (0.5-2.5)*(5-180) |
For more details, pls directly contact us.
Feature：
High temperature stability: This alloy wire can maintain stability at extremely high temperatures and is not prone to deformation or failure.
High resistivity: FeCrAl flat wires have a high resistivity, allowing them to generate a large amount of heat when passing through current.
Oxidation resistance: FeCrAl alloy has good oxidation resistance at high temperatures, which can resist oxidation and corrosion, and extend its service life.
Application：
Household appliances: heating elements used to manufacture household appliances such as ovens, water heaters, and hot air fans, achieving fast and uniform heating effects.
Industrial heating equipment: Heating elements used to manufacture industrial heating equipment such as heat treatment furnaces and furnaces.
Automotive industry: In the automotive industry, FeCrAl flat wires are used to manufacture heating elements such as car heaters and seat heaters, ensuring comfortable and stable temperature inside vehicles.
Q&A：
What is the effect of high resistivity of FeCrAl flat wires?
High electrical resistivity enables it to generate a large amount of heat when passing through current, which is used for fast and efficient heating.
What is the specific application of FeCrAl flat wire in ovens?
Used as a heating element in an oven, it achieves uniform heating and baking of food through resistance heating.
What are the advantages of FeCrAl flat wire compared to other materials in the automotive industry?
It has good high-temperature stability and antioxidant performance, can provide reliable heating effect, and is suitable for applications such as automotive internal heaters, ensuring comfortable and stable temperature inside the vehicle.
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