How much is a kilogram of 304 stainless steel blackened

304 stainless steel blackening, chemical blackening is about 2 yuan a kilogram.

Now that the price has risen, issues such as environmental protection and workers' wages have slowly increased.

Stainless steel screws are blackened** generally charged according to the process, (2), stainless steel blackened.

Stainless steel blackening is divided into three types: low-temperature blackening, optical matting blackening, and high-temperature blackening.

1. The quality of stainless steel low-temperature blackening process is better than that of the same industry, the blackening film of the treated workpiece is firm, the adhesion is good, the oil seal is dark, and there is a certain wear resistance. Comply with the national standard GB T15519But it can't compete with high temperatures.

2. The stainless steel optical matting and blackening process is treated by a special method to make the workpiece get a matte, non-reflective black oxide film, strong and firm binding force of the blackened film, no hanging ash, good wear resistance, in line with the military standard WJ1535-82It is widely used in precision optical equipment and components such as lenses, lens barrels, lens lens shields, etc.

3. The stainless steel has excellent blackening effect at high temperature, has good corrosion resistance, wear resistance, and the blackening film binding force is very firm, and the surface layer of the treated workpiece has wear resistance, friction reduction, abrasion resistance, bite resistance, fatigue resistance, corrosion resistance and self-lubrication performance. It conforms to the national standard SGS, GB T15519, military standard WJ535-82, German standard DIN50938, American standard MIL-C-13924

3) The copper is black.

Copper blackening is divided into two types: general blackening and optical blackening.

Copper is generally blackened, which can make the copper surface get a dark or antique oxide film, and the blackened film has good adhesion. The blackening of copper optics has been specially processed and the optical blackening process developed by the company, and the blackening film of the treated workpiece is uniform, the adhesion is firm, the wear resistance is good, the oxide film is dark, and the matte black is non-reflective, etc., all of which meet the requirements of optical components. The company's optical blackening process is suitable for copper blackening of various materials.

4) Aluminum surface treatment is divided into aluminum oxide black, color oxidation, and natural color oxidation. The blackened film of aluminum anodizing is dark, firm and uniform, the color oxidation color is bright, uniform and firm, and the natural color oxidation color is bright and has no color difference.

Low temperature is generally 6-8 yuan, optical matting blackening is generally per piece, and high temperature blackening is generally more than 10 yuan.

Because when grinding stainless steel, a black-colored powder is produced, which is reacted by chemical oxidation.

The surface of the surface of the dense black protective film, blackened surface brightness depends on the brightness of the stainless steel surface, is a normal phenomenon, with dish soap.

Brush and clean the paulownia.

304 stainless steel.

The density is g cm?It is also called 18 8 stainless steel in the industry. High temperature resistance 800, with good processing performance, high toughness characteristics, widely used in industry, furniture decoration industry and food and medical industry.

Summary. Hello, I have seen your question and am sorting out the answer, please wait a while What chemical agent is used to make the surface of 304 stainless steel black.

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Hello dear, I'm glad to answer for you: because when polishing stainless steel, it will produce black powder, through chemical oxidation reaction, so that its surface will generate a dense black protective film, and the degree of filial piety on the surface of the blackened surface depends on the brightness of the surface of the stainless potato and the molten steel manuscript, which is a normal phenomenon, and it can be cleaned with dish soap, but if it is not polished, there is a black phenomenon, that is, the quality of 304 steel itself is problematic, I hope mine is helpful to you.

Because when grinding stainless steel, black powder will be produced, through chemical oxidation reaction, the surface of the surface to produce a dense black protective film, the blackened surface brightness depends on the brightness of the stainless steel surface, which is a normal phenomenon, and it can be cleaned with dish soap. The number is <>

Because the black color powder will be produced when polishing the stainless steel, through the chemical oxidation reaction, the surface of the dense black protective film will be generated, and the brightness of the surface after blackening depends on the brightness of the surface of the stainless steel, which is a normal phenomenon, and can be cleaned with dish soap.

<> because the black color powder will be produced when the stainless steel is excavated and polished in the mountain, through the chemical oxidation reaction, the surface of the surface will generate a dense black protective film, and the brightness of the surface after blackening depends on the brightness of the stainless steel surface, which is a normal phenomenon.

<> because the black color powder will be produced when grinding stainless steel, through the chemical oxidation reaction, the surface of the fibrous nucleus into a dense black protective film, the blackened surface brightness depends on the brightness of the surface of the stainless steel, which is a common phenomenon of destroying the mountain, and can be cleaned with only blind dish soap.