304 stainless steel pipe is a versatile stainless steel that is widely used in the manufacture of equipment and equipment that require good overall performance (corrosion resistance and molding). 304 stainless steel is a brand of stainless steel manufactured according to the ASTM standard. 304 is the equivalent of 0Cr19Ni9 (0Cr18Ni9) stainless steel. 304 contains ≥18% of chromium and ≥8% nickel. 304 is the most widely used stainless steel, heat resistant steel, practical steel, Chinese steel. Used for food production equipment, common chemical equipment, nuclear energy, etc.
The TP 304 stainless steel pipe is used as a stainless steel tube and is used for the use of food equipment, general chemical equipment and equipment for the atomic energy industry.
The stainless steel rust resistance is stronger than the stainless steel materials of the 200 series. It is also good for high temperature, which can be up to 1000-1200 degrees. TP304 stainless steel has excellent corrosion resistance and good corrosion resistance.
The 304 stainless steel material has a strong resistance to corrosion in nitric acid, which is below the boiling temperature of less than 65%. Alkaline solution and most organic acids and inorganic acids also have good corrosion resistance.
analysis of performance:
TP304 stainless steel pipe has good corrosion resistance, excellent corrosion performance and cold processing and stamping performance, which can be used as a heat-resistant stainless steel. At the same time, the steel – 180 ℃ under the condition of the mechanical properties of this dismal disease. The plastic, toughness and cold processing of steel in solid solution are good. The production and usage of 304 stainless steel are the largest and the most widely used steel types, which are resistant to corrosion in dielectric acid and atmosphere and water.
TP304 stainless steel has a good cold and hot working performance, can be in all kinds of cold and hot working process,
Heat treatment process:
304 stainless steel pipe with solid solution treatment temperature of 1080-1100 ℃, cooling water or air cooling. Cold intermediate annealing temperature more than in 850-970 ℃, heat preservation water after a certain time. After the solid solution, the tissue of the steel is the austenitic tissue, and sometimes there is a small amount of ferrite.
TP304/SS304 stainless steel thin plate is used in the application process, often used in cold molding operation. Its cold molding performance is an important technical index to measure the success of the molding and yield.