What are the surfaces of 304 stainless steel coils 10

After hot rolling, it undergoes heat treatment and pickling process, which is used for cold-rolled raw materials, industrial tanks, chemical industry equipment, etc.

After cold rolling, the matte cold-rolled products produced by heat treatment and pickling processes are used in petrochemical production equipment, auto parts, building materials, pipeline materials, etc.

It is a product that has been quenched and tempered and rolled together. In comparison, the gloss and surface smoothness are better. Surface treatments that improve mechanical properties can be used for almost all applications.

This product is made of 100 to 120 mesh abrasive paper, and is suitable for products that require a beautiful shine, such as interior and exterior decoration materials for buildings, various electronic product shapes, and kitchen equipment.

Products that are ground with 150 to 180 mesh abrasive paper are finer submerged and have a silvery-white surface. It is mainly used for bathtubs, interior and exterior decoration materials of buildings, food equipment, etc.

BA is a product that undergoes bright annealing and heat treatment after cold rolling, and is quenched and tempered and rolled for home appliances, small mirrors, kitchen equipment and building materials that require high reflectivity.

Generally there are brushed mirror 2b sides to see what you need.

It is widely used in the production of equipment and parts that require good comprehensive properties (corrosion resistance and formability), such as food production equipment, tableware manuscripts, Xitong chemical equipment, nuclear energy, exterior materials, building materials, automotive parts (semi-trailer tanker tanks), medical equipment, textile industry and ship parts.

304 stainless steel coil is divided into austenitic stainless steel cold-rolled coil and stainless steel hot-rolled coil. 304 stainless steel (coil) plate characteristics: beautiful surface, diversified use possibilities; Corrosion resistance key shouts good; It is more durable than ordinary steel; Good corrosion resistance; High temperature oxidation resistance and high strength, so it can resist fire; Good plasticity, good welding performance.

It has excellent stainless corrosion resistance, good intergranular corrosion resistance and good processing performance.

A type of high-alloy steel that resists corrosion in air or in chemically corrosive media, stainless steel is an aesthetically pleasing 304 stainless steel sample.

It is a type of steel that has good surface and corrosion resistance, does not need to undergo surface treatment such as color plating, and gives full play to the inherent surface properties of stainless steel, and is commonly called stainless steel. Typical properties include 13 chromium steel, 18-8 chromium-nickel steel and other high-alloy steels. The mechanism of stainless steel rust prevention is that the alloying elements form a dense oxide film, which isolates oxygen contact and prevents further oxidation.

So stainless steel is not "stainless steel". There may be several reasons for the rusting of 304 materials: 1

Chloride ions are present in the environment of use. Chloride ions are widely present, such as table salt, sweat stains, sea water, sea breeze, soil, etc. In the presence of chloride ions, stainless steel corrodes very quickly, even more than ordinary mild steel.

Therefore, there are requirements for the use environment of stainless steel, and it needs to be wiped frequently, dust removed, and kept clean and dry. (This would give him a "misuse" label.) There is an example in the United States:

An enterprise uses an oak container to contain a solution containing chloride ions, the container has been used for nearly 100 years, and it is planned to be replaced in the nineties of the last century, because the oak material is not modern enough, and the container leaks due to corrosion 16 days after the replacement of stainless steel. 2.It is not solution-treated.

The alloying elements are not dissolved into the matrix, resulting in low alloy content and poor corrosion resistance in the matrix structure. 3.This titanium- and niobium-free material has a natural propensity for intergranular corrosion.

The addition of titanium and niobium, combined with a stabilization treatment, can reduce intergranular corrosion. It is a kind of high-alloy steel that can resist corrosion in the air or chemical corrosive medium, stainless steel is a kind of steel that has a beautiful surface and good corrosion resistance, does not have to go through surface treatment such as color plating, and gives full play to the inherent surface properties of stainless steel, and is used in many aspects, commonly known as stainless steel. Typical properties include 13 chromium steel, 18-8 chromium-nickel steel and other high-alloy steels.

From a metallographic point of view, because stainless steel contains chromium, a thin chromium film is formed on the surface, and this film isolates the oxygen intrusive from the steel to resist corrosion. To maintain the corrosion resistance inherent in stainless steel, the steel must contain more than 12% chromium. 304 is a versatile stainless steel that is widely used in equipment and parts that require good overall properties (corrosion resistance and formability).

To maintain the corrosion resistance inherent in stainless steel, the steel must contain more than 12% chromium. 304 stainless steel is a grade of stainless steel produced in accordance with the American ASTM standard. 304 is equivalent to 0Cr19Ni9 (0Cr18Ni9) stainless steel in China.

304 contains 19% chromium and 9% nickel. 304 is the most widely used stainless steel and heat-resistant steel. It is used in food production equipment, general chemical equipment, nuclear energy, etc.

304 Stainless Steel Chemical Composition Specifications C Si Mn P S Cr Ni (Nickel) Mo Stainless Steel SUS304 Density is g cm3 SUS304 Chemical Composition