Tips for choosing stainless steel electric heating pipe raw materials

(1, the selection principle of pipes: temperature resistance, corrosion resistance

2. Selection of resistance wire.

Stainless steel 303 material, because it contains sulfur, is easy to cut, mainly used for convenient cutting and high requirements for stainless steel surface finish.

Among the factors that affect the quality of stainless steel electric heating pipes, the quality of materials is an important reason. Reasonable selection of raw materials for electric heating pipes is the premise to ensure the quality of electric heating pipes. The selection of materials includes the following points for reference:

Compared with stainless steel 304, stainless steel 304L has a lower carbon content. The low carbon stainless steel has less carbides decomposed by thermal influence near the weld during welding, so it reduces carbon emissions, because carbides will cause welding corrosion. . The 305 grade has a higher nickel content and is easier to form because of its lower work hardening rate. Stainless steel 308 material is generally used in the manufacture of electrodes.

3. Selection of magnesium oxide powder.

4. Selection of sealing materials. The first stainless steel 301 material, when deformed during processing, has a hardening phenomenon and is used in various high-strength occasions. In the process of manufacturing stainless steel heating pipe, stainless steel 304 material is used, which is widely used in heating liquid (no strong acid and alkali) and air heating. It has good comprehensive performance, easy to form and moderate price. used in manufacturing

Stainless steel 302 material is actually a variety with higher carbon content than 304, and has higher strength after cold rolling.