Introduction:

0Cr19Al3 heater wire is a high resistance alloy, also known as grate bar alloy. It is composed of iron (Fe), chromium (Cr), aluminum (Al) and small amounts of other elements. The alloy's excellent high temperature resistance and electrical resistance properties make it widely used in thermal equipment and electric furnace heating elements.

0Cr19Al3 heater wire alloy has excellent oxidation resistance and can form a dense oxide protective film in high temperature environments, effectively preventing further oxidation reactions. In addition, it has good mechanical properties and weldability, making it very popular in the manufacture and application of heating elements.

The heater wire is a wire made of 0Cr19Al3 alloy and has a certain degree of elasticity and plasticity. Its cross-sectional shape is usually circular or rectangular, and different sizes and lengths can be customized according to specific needs.

Parameter:

• Chemical composition:

Iron (Fe): balance
Chromium (Cr): 18.0-21.0%
Aluminum (Al): 2.7-3.3%
Copper (Cu): Max. 0.5%
Manganese (Mn): maximum 0.7%

• Physical properties:

Density: 7.25 g/cm³
Melting point: 1500-1520°C
Linear expansion coefficient: 15.4 × 10^(-6)/°C (20-1000°C)
Resistivity: 1.09 μΩ·m (20°C)

• Mechanical behavior:

Tensile strength: ≥ 690 MPa
Yield strength: ≥ 390 MPa
Elongation: ≥ 30%

Characteristic:

• High temperature resistance: 0Cr19Al3 furnace bar can maintain stable performance in high temperature environments.
• Anti-oxidation performance: Form a dense oxide protective film to effectively prevent further oxidation of materials.
• Mechanical properties: Has certain elasticity and plasticity.
• Resistance performance: Provide stable resistance characteristics.

Advantage:

• High stability: able to work stably for a long time in high temperature environments.
• Good anti-oxidation performance: It can effectively resist the impact of oxidation on material properties.
• Easy to process and weld: has good plasticity and weldability.

Specific applications:

1. Furnace Heating Coil: Heating element used in industrial electric furnaces.
2. Hot air stove heating element: Heating element used in hot air stoves to provide high-temperature air.
3. Industrial oven: used in industrial heating and baking equipment.
4. Electric Heater: Heating element used in appliances and industrial equipment.
5. Heat treatment equipment: Heating elements used in metal heat treatment processes.

Q&A:

What is the maximum working temperature of 0Cr19Al3 heater wire?
The maximum working temperature of 0Cr19Al3 heater wire is generally around 1200℃.

What is the difference between 0Cr19Al3 heater wire and other high resistance alloys?
0Cr19Al3 heater wire has higher oxidation resistance and mechanical properties than other high-resistance alloys.

What are the processing methods of 0Cr19Al3 heater wire?
0Cr19Al3 heater wire can be processed by cold drawing, cold rolling and hot rolling.