What are the factors that affect the quality of stainless steel electric heating pipe

Stainless steel electric heating pipe uses stainless steel as the sheath, magnesium oxide Rod as the inner core, magnesium oxide powder as the filler, and Chromel-filament is heating wire. It can be roughly divided into single head heating tube and double-headed electric tube.

Among the factors that affect the quality of stainless steel electric heating pipe, material quality is a very important reason.

1. Pipe selection principle: high temperature resistance and corrosion resistance.

2. Selection of resistance wire.

3. Selection of magnesium oxide powder.

4. Selection of sealing materials.

Stainless steel 301 is used in various high-strength occasions because it becomes hard during processing and deformation. In the manufacturing process of stainless steel heating pipe, stainless steel 304 is widely used for heating liquid and air. It has good comprehensive performance, easy molding and moderate price, and is widely used in heating pipe manufacturing.

Stainless steel 302 material is actually 304 varieties with high carbon content, which has high strength after cold rolling. Stainless steel 303 is made of sulfur and easy to cut. It is mainly used in occasions where it is easy to cut and requires high surface finish of stainless steel.

Compared with 304 stainless steel, 304L stainless steel has lower carbon content. When welding, stainless steel with lower carbon content is close to the weld, and there are fewer carbide decomposed by heat, so carbon emission is reduced, because carbide will produce welding erosion. 305 material has high nickel content, low work hardening rate and easy molding. Stainless steel 308 is usually used to make covering electrodes.