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SPARK 0Cr20Al6 SPARK High performance electric heating wire 1350 ℃

As the company's flagship "Steel Flower" brand electrothermal material, this model is the preferred core base material for medium- and high-temperature electrothermal heating, industrial equipment, and household appliance heating applications. With five core characteristics—strong high-temperature resistance, oxidation and corrosion resistance, stable operating power, high cost-effectiveness, and long service life—it precisely addresses the industry pain points of traditional electrothermal alloys, such as easy aging, easy breakage, unstable heating, and high maintenance costs.

    Detailed Introduction of 0Cr20Al6 Iron-Chromium-Aluminum Electrothermal Alloy

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    Beijing Shougang Jitai'an New Materials Co., Ltd., relying on the top-tier metallurgical core technology of Shougang Group and years of experience in special alloy R&D and production, meticulously crafts its core product, 0Cr20Al6 iron-chromium-aluminum electrothermal alloy.

    PRODUCT ADVANTAGE

    The product utilizes refined metallurgical rolling technology and comprehensive quality control, resulting in outstanding and balanced performance. It is a reliable material for continuous industrial operations and a cost-effective choice for civilian household appliance production. It has long been trusted and recognized by customers in domestic and international equipment manufacturing, home appliance production, industrial kilns, and environmental protection industries.

     OCr20A16

    Maximum continuous operating temperature / °C

    1300

    Chemical composition%

    Cr

    20

    Al

    5.5

    Fe

    margin

    Resistivity at 20℃, Ω.Qmm²/m

    1.45

    Resistance temperature correction factor (Ct coefficient)

    800℃

    1.03

    1000℃

    1.04

    1200℃

    1.04

    Density g/cm³

    7.10

    Specific heat capacity (KJ/kg⁻¹/K⁻¹)

    0.46

    Melting point ℃

    1500

    Mechanical properties (approximate parameters)

     

    Tensile strength / MPa

    750

    Hardness/Hv

    230

    Elongation at break %

    17

    magnetic

    Ferromagnetic

    Emission rate

    0.7

    Thermal conductivity (20℃) Wm¹K⁻¹

    13

    PRODUCT ADVANTAGE

    ELEMENT SERVICE LIFE
    ELEMENT SERVICE LIFE

    The rapid test life is the lifespan of the alloy sample wire measured under laboratory conditions according to rapid test standards and methods. China follows the former Soviet Union's method of evaluating based on cumulative time until burnout with a 2-minute power-on and 2-minute power-off cycle, using a sample size of 0.8 mm in diameter. Generally, alloys with a longer rapid test life also have a longer actual service life.

    ELEMENT SURFACE
    ELEMENT SURFACE

    A higher surface load results in a higher temperature of the element. Conversely, a lower surface load leads to a lower temperature of the element. When the electrical power is determined, selecting a higher surface load will result in a smaller element size, saving on raw materials. However, the surface load of the element is inversely proportional to its service life. The surface load is related to the material, specification, construction, operating temperature, heat dissipation conditions, environmental atmosphere, support material, and frequency of temperature changes of the electrothermal element.

    COLLAPSE RESISTANCE PERFORMANCE
    COLLAPSE RESISTANCE PERFORMANCE

    Collapse resistance testing is a method to characterize the high-temperature deformation resistance of large-sized materials.

    OXIDATION WEIGHT GAIN RATE
    OXIDATION WEIGHT GAIN RATE

    The test involves using materials of the same specification and subjecting them to long-term heating at 1050℃ to measure the oxidation weight gain. (The oxidation weight gain rate data may vary with different specifications and temperatures.)

    APPLICATION DIRECTION

    0Cr20Al6 iron-chromium-aluminum electric heating alloy has a wide range of applications, catering to both professional industrial applications and the essential electric heating needs of all sectors of household appliances. In the industrial sector, it is widely compatible with core components such as heat treatment resistance furnaces, annealing furnaces, drying and curing kilns, far-infrared radiation heating equipment, locomotive braking resistors, high-temperature heating devices for chemicals, automotive exhaust purification heating components, and gas infrared heating equipment. In the household appliance sector, it is deeply compatible with core heating elements in various home heating appliances such as high-end electric ceramic cooktops, air fryers, high-power electric heaters, constant-temperature water heaters, professional hair dryers, and constant-temperature electric blankets.​

    As a specialized and innovative backbone production enterprise, Shougang Jitai'an implements a closed-loop quality control system covering raw material selection, smelting and rolling, heat treatment and tempering, finished product testing, and factory inspection. This rigorous control over every production process ensures that each batch of 0Cr20Al6 products exhibits stable performance, strong batch consistency, and meets quality standards without worry. The company also has a professional technical service team that can provide customers with one-stop customized solutions, including material selection matching, process adaptation, on-site commissioning, and after-sales follow-up.

    应用场景 800K.jpg

    APPLICATION DIRECTION

    0Cr20Al6 is a classic national standard iron-chromium-aluminum electrothermal alloy. It uses high-purity iron-based raw materials, precisely proportioned with 20% chromium and 6% aluminum as core alloying elements. Strict adherence to low-carbon, low-impurity production standards is maintained, with strict control over harmful impurities such as sulfur and phosphorus. The alloy's internal microstructure is uniform and dense, with stable batch composition, ensuring long-term product quality from the source of production. The product boasts excellent core electrothermal performance parameters. Under standard operating conditions (20℃), its resistivity remains stable at 1.40 μΩ·m. Its temperature coefficient of resistance is suitable for various conventional heating conditions. The power output is balanced throughout operation, without resistance fluctuations or inconsistent heating due to temperature changes. It exhibits high temperature control accuracy and strong adaptability. This alloy can operate safely continuously at 1250℃, with a short-term peak withstand temperature of 1300℃. It perfectly adapts to various complex operating conditions, including continuous high-temperature heating, intermittent start-stop operation, and alternating high and low temperature cycles, meeting the core requirements for stable, uninterrupted operation of industrial equipment around the clock.

    Compared to ordinary economical heating alloys, 0Cr20Al6 has particularly outstanding advantages in high-temperature durability and processing adaptability. Under high-temperature operating conditions, a dense and robust alumina protective film can quickly form on the surface. This film has strong adhesion, is not easily peeled off or cracked, and effectively resists high-temperature oxidation, flue gas corrosion, sulfur media erosion, and high-temperature carburization damage, significantly slowing down the aging rate of the alloy matrix. It is also resistant to high-temperature vibration and thermal expansion and contraction deformation losses, extending its actual service life by more than 20% compared to ordinary iron-chromium-aluminum alloys. Long-term use prevents embrittlement, deformation, and breakage, effectively reducing the frequency of heating element replacement and significantly lowering subsequent maintenance costs and downtime losses for enterprises. Simultaneously, the product exhibits excellent cold and hot processing performance, with good ductility and flexibility. It can be customized into various forms such as precision round wire, cold-rolled flat strip, ultra-thin foil, and heating fibers. The finished products have precise dimensions, high surface finish, and good adaptability to secondary processing techniques such as bending, winding, and welding, comprehensively meeting the personalized component customization and mass production needs of different customers.

    TEAM

    SPARK "brand spiral wire is well-known all over the country. It uses high-quality Fe-Cr-Al and Ni-Cr-Al alloy wires as raw materials and adopts high-speed automatic winding machine with computer control power capacity. Our products have high temperature resistance, fast temperature rise, long service life, stable resistance, small output power error, small capacity deflection, uniform pitch after elongation, and smooth surface. It is widely used in small electric oven, muffle furnace, air conditioner, various ovens, electric heating tube, household appliances, etc. We can design and manufacture all kinds of non-standard helix according to user's requirements.
    All products are manufactured and tested in strict accordance with the national industry standard GB/T 1234. We can supply wire of all specifications from Φ0.04 to 9.0mm, customized cold-rolled strip and special-shaped parts. We support customized specifications and bulk supply as needed, and the delivery cycle is stable and reliable.

    OUR CERTIFICATES

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    AT THE EXHIBITION

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    PACKING & DELIVERY

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    COMPANY PROFILE

    As a specialized and innovative backbone production enterprise, Shougang Jitai'an implements a closed-loop quality control system covering raw material selection, smelting and rolling, heat treatment and tempering, finished product testing, and factory inspection. This rigorous control over every production process ensures that each batch of 0Cr20Al6 products exhibits stable performance, strong batch consistency, and meets quality standards without worry. The company also has a professional technical service team that can provide customers with one-stop customized solutions, including material selection matching, process adaptation, on-site commissioning, and after-sales follow-up.

    FAQ

    Who are we?

    We are located in Beijing, China and started in 1956, selling products to Western Europe (11.11%), East Asia (11.11%), the Middle East (11.11%), Oceania (11.11%), Africa (11.11%), Southeast Asia (11.11%), Eastern Europe (11.11%), South America (11.11%), and North America (11.11%). Our total number of employees is about 400.

    How can we guarantee quality?

    Always a pre-production sample before mass production; always final Inspection before shipment.

    What can you buy from us?

    heating alloys, resistance alloys, stainless alloys, special alloys, amorphous (nanocrystalline) strips.

    Why should you buy from us not from other suppliers?

    More than sixty years researching in the electrical heating alloys. An excellent research team and a complete test center. A new product development mode of joint research. A strict quality control system. An advanced production line.

    What services can we provide?

    Accepted Delivery Terms: FOB, CIF;
    Accepted Payment Currency: USD, EUR, JPY, CAD, AUD, HKD, GBP, CNY, CHF;

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