06cr19ni10 stainless steel wire woven screen raw material brand, chemical composition, national standard introduction

06cr19ni10 Stainless steel wire woven screen raw material brand, chemical composition, national standard introduction
06cr19ni10 is the new brand of 304, the old brand of 304 is 0cr18ni9.
American brand: ASTM 304
Chinese brand: 0Cr18Ni9 (old brand)
Chinese brand: 06Cr19Ni10 (new brand)
China's stainless steel brands are all composed of chemical composition plus numbers, but it is not easy to remember.
So usually we call them American brands and Japanese brands, they are all composed of numbers plus letters.
304 is the American brand, 0cr18ni9 is the old brand of China, and 06cr19ni10 is the new brand of China. Now it has begun to be used gradually.
"304" is the American stainless steel brand, and the corresponding brand in China is 06Cr19Ni10). The steel has excellent stainless corrosion resistance, excellent cold and hot processing forming performance, good low temperature performance and good welding performance. In order to meet the requirements of certain specific conditions and make up for certain performance deficiencies, a series of derivative grades of "304" have been developed.

304 old brand: 0cr18ni9 chemical composition C: 0.07, Si: 0.030, Mn: 2.00, P: 0.035, S: 0.030, Ni: 8.00-11.00, Cr: 17: 00-20: 00
304 new brand: 06Cr19Ni10 chemical composition C: 0.08, Si: 1.00, Mn: 2.00, P: 0.045, S: 0.030, Ni: 8.00-11.00, Cr: 18: 00-20: 00

The chromium content in the new grade 304 has increased by one point, and the P content has been relaxed. It is actually the same as the current TP304 material.

06Cr19Ni10 Stainless steel implementation standard: GB/T20878-2007 JIS G4303:2005 　　
06Cr19Ni10 is a high alloy steel that can resist corrosion in air or chemical corrosive media. 　　
It has good surface and corrosion resistance, and does not need to undergo surface treatment such as plating, but exerts the inherent surface properties of stainless steel. It is a kind of steel used in many aspects, usually called stainless steel. Representative performance includes 13 chromium steel, 18-8 chromium-nickel steel and other high alloy steels. 　　
The mechanism of stainless steel rust prevention is that alloy elements form a dense oxide film, isolate oxygen contact, and prevent further oxidation. Therefore, stainless steel is not "stainless". 　　
There may be the following reasons for the rust phenomenon of 06Cr19Ni10 material: 　　
1. Chloride ions exist in the use environment. Chloride ions are widely present, such as salt, sweat, sea water, sea breeze, soil, etc. Stainless steel corrodes quickly in an environment with chloride ions, even more than ordinary low-carbon steel. Therefore, there are requirements for the use environment of stainless steel, and it needs to be wiped frequently to remove dust and keep it clean and dry. (In this way, he can be charged with "improper use".) There is an example in the United States: a company used an oak container to hold a solution containing chloride ions. The container had been used for nearly a hundred years. In the 1990s, it was planned to be replaced. Because the oak material was not modern enough, it was replaced with stainless steel. 16 days later, the container leaked due to corrosion. 　　
2. No solid solution treatment. The alloy elements were not dissolved into the matrix, resulting in low alloy content in the matrix structure and poor corrosion resistance. 　　
3. This material without titanium and niobium has a natural tendency to intergranular corrosion. Adding titanium and niobium, combined with stabilization treatment, can reduce intergranular corrosion. Stainless steel is a high-alloy steel that can resist corrosion in air or chemical corrosive media. It has a beautiful surface and good corrosion resistance. It does not need to undergo surface treatment such as plating, but exerts the inherent surface properties of stainless steel. It is a kind of steel used in many aspects and is usually called stainless steel. Representative performance includes high-alloy steels such as 13 chromium steel and 18-8 chromium-nickel steel. From the perspective of metallography, because stainless steel contains chromium, a very thin chromium film is formed on the surface. This film isolates the oxygen that invades the steel and plays a corrosion-resistant role. In order to maintain the inherent corrosion resistance of stainless steel, the steel must contain more than 12% chromium.　 　　
06Cr19Ni10 is a general-purpose stainless steel that is widely used in the manufacture of equipment and parts that require good comprehensive performance (corrosion resistance and formability). In order to maintain the inherent corrosion resistance of stainless steel, the steel must contain more than 12% chromium. 　　
06Cr19Ni10 stainless steel is a grade of stainless steel produced in accordance with the American ASTM standard. 　　
06Cr19Ni10 is the most widely used stainless steel and heat-resistant steel. It is used in food production equipment, general chemical equipment, nuclear energy, etc. Edit this section Performance
06Cr19Ni10 stainless steel is the most widely used chromium-nickel stainless steel, with good corrosion resistance, heat resistance, low temperature strength and mechanical properties. It is corrosion-resistant in the atmosphere. If it is an industrial atmosphere or a heavily polluted area, it needs to be cleaned in time to avoid corrosion. It is suitable for food processing, storage and transportation. It has good processing performance and weldability. Plate heat exchangers, bellows, household goods, building materials, chemicals, food industry, etc.