Product features of stainless steel electric heating tube

The product feature of the stainless steel electric heating tube is that the stainless steel tube is used as the outer shell, and the spiral electric heating alloy wire is evenly distributed along the central axis of the tube. The inner space of the heating tube is filled with compacted magnesia sand with good insulation and thermal conductivity. Or ceramic seal.

Stainless steel electric heating tube is an electric heating element that converts electric energy into heat energy. Stainless steel is cheap, easy to use, easy to install, and pollution-free. It is widely used in various heating occasions. The service life of stainless steel electric heating tubes is very long, and the general design service life is more than 10,000 hours.

The voltage can be designed as 12-660V

Single-injection power: 24W-200KW

Specifications are: U-shaped, W-shaped, special-shaped, finned electric heating tube, explosion-proof electric heating tube

material:

Among the factors that affect the quality of the electric heating tube, the quality of the material accounts for a very important reason. A reasonable selection of raw materials for electric heating tubes is a prerequisite for ensuring the quality of electric heating tubes. The choice of material includes the following points for reference:

1. The principle of pipe selection: temperature resistance and corrosion resistance.

2. Selection of resistance wire.

3. Selection of magnesium oxide powder.

4. Selection of sealing materials.

Selection of pipe materials:

1: SUS301, hardening occurs during processing deformation and is used in various high-strength occasions.

2: SUS304 is the most commonly used material for stainless steel electric heating tubes. It is widely used in heating liquids (without strong acid or alkali) and air heating. It has good comprehensive performance, easy to shape, and moderate price.

3: SUS302 is actually a variety with higher carbon content than SUS304, and has higher strength after cold rolling.

4: SUS303, because it contains sulfur, it is easy to cut. It is mainly used for convenient cutting and occasions requiring a high surface finish of stainless steel.

5: Compared with SUS304, SUS304L has a lower carbon content. The low-carbon stainless steel near the weld is affected by heat and has fewer carbides during welding, so carbon emissions are minimized because carbides will produce welding erosion.

6: SUS305 has a high nickel content and is easy to form because of its low work hardening rate.

7: SUS308 is generally used in the manufacture of welding rods.

8: SUS316 and SUS317 contain aluminum, which will be used in weak acid and alkali, and the acid and alkali resistant type are better than SUS304.

9: SUS321 has a high content of titanium, which is generally used for butt welding at high temperatures and acid-base corrosion.

The electric heating tube can only choose different stainless steel materials according to different working environments.