According to the relevant provisions of the American AISI standard, stainless steel is directly represented by three-digit Arabic numerals. The first digit indicates the category, and the second and third digits indicate the sequence number. For example, 200 series, 300 series and 400 series, etc.

One of the stainless steel applications is the stainless steel heating tube, which directly heats the fluid through forced convection. A pump is used to pump the fluid into the heating chamber on one side of the stainless steel heater.

One of the stainless steel processing equipment is the surface polishing machine, which is mainly used to polish stainless steel pipes, rods, square tubes and other stainless steel products.

Both 316 and 316L stainless steel are molybdenum-containing stainless steels. Among them, the molybdenum content in 316L stainless steel is slightly higher than that of 316 stainless steel.

With the continuous advancement of 400 series stainless steel production technology, many types of stainless steel parts for automobiles are made of 400 series stainless steel materials, and exhaust systems are even more widely used. The following is an introduction to the use of component materials in the exhaust system.

In many industrial applications, stainless steel materials have very good corrosion resistance. According to actual application data, in addition to mechanical failure, stainless steel corrosion is mainly reflected in local corrosion, that is, stress corrosion, pitting corrosion, intergranular corrosion, and crevice corrosion. These corrosions are introduced below.

310S heat-resistant stainless steel, as an important metal raw material used in the aerospace and chemical industries, is widely used in high-temperature environments. High-temperature oxidation is also a key type of corrosion damage at high temperatures, so the development of new stainless steel materials that can resist high-temperature oxidation is of far-reaching significance for improving national defense. Among them, austenitic heat-resistant stainless steel 310S is a high-chromium nickel austenitic stainless steel.

The name 430 stainless steel comes from the Japanese national standard. It has very good corrosion resistance.

Ferritic stainless steel is an iron-chromium alloy with a chromium content of 10%-30% in stainless steel materials. This traditional stainless steel material is rarely used in industrial products due to its limited toughness, high brittle transition temperature, and weak processing capabilities.

With the continuous advancement of material processing technology, stainless steel pipes are also ushering in new development opportunities. Typical applications include automobile exhaust pipes, fuel pipes, fuel injectors and other automobile components.

Stainless steel welded pipes are mainly used in landscape decoration, light industry, pharmaceuticals, water supply and other industries. They are also used in petrochemical and other industries. They usually use medium and low-pressure pipelines with specifications above Φ159mm. In addition, automobile mufflers can also be made of stainless steel welded pipes. become.

Stainless steel pipes are widely used in the field of electric heating pipes, mainly in the production of electric water heaters, which mainly include heating tank plates, water volume regulators, power regulators, pressure sensors, water inlet pipes and water outlet pipe components.