304 Stainless Steel Square Pipe

304 stainless steel square pipe

Scope of application
304 is the most widely used stainless steel, heat-resistant steel. Used in food production equipment, general chemical equipment, nuclear energy, etc.

Constituent element
In the air or chemical corrosive medium can resist corrosion of a kind of high alloy steel, stainless steel is a beautiful surface and good corrosion resistance, do not have to go through plating and other surface treatment, and play the inherent surface properties of stainless steel, used in many aspects of steel, usually called stainless steel. Representative properties are 13 chromium steel, 18-8 chromium nickel steel and other high alloy steel.

The mechanism of stainless steel rust prevention is that the alloying elements form a dense oxide film to isolate oxygen contact and prevent continued oxidation. So stainless steel is not "stainless". 304 material rust phenomenon, there may be the following reasons: 1. There are chloride ions in the use environment. Chloride ions are widely present, such as salt, sweat, sea water, sea breeze, soil and so on. Stainless steel in the presence of chloride ions in the environment, corrosion quickly, even more than ordinary mild steel. Therefore, there are requirements for the use of stainless steel environment, and it is necessary to wipe frequently, remove dust, and keep clean and dry. (That would give him a "improper use" designation.) There is an example in the United States: a company with an oak container containing a chloride ion solution, the container has been used for more than 100 years, the last century in the 1990s to replace, because the oak material is not modern enough, the use of stainless steel replacement 16 days after the container due to corrosion leakage. 2. No solution treatment. The alloying elements do not dissolve into the matrix, resulting in low alloy content and poor corrosion resistance of the matrix. 3. This material, which does not contain titanium and niobium, has a natural tendency to intergranular corrosion. The intergranular corrosion can be reduced by adding titanium and niobium and then stabilizing them. From the metallographic point of view, because stainless steel contains chromium and the surface of the formation of a very thin chromium film, this film is separated from the oxygen intrusion in the steel has a role in corrosion resistance. In order to maintain the corrosion resistance inherent in stainless steel, the steel must contain more than 12% chromium. 304 is a versatile stainless steel, which is widely used in the production of equipment and parts requiring good comprehensive properties (corrosion resistance and formability). 304 stainless steel is a grade of stainless steel produced according to ASTM standards in the United States. 304 is equivalent to 0Cr19Ni9 (0Cr18Ni9) stainless steel in China. 304 contains 19% chromium and 9% nickel.

Types of Pipe

Application

Hot Tags: 304 stainless steel square pipe, China 304 stainless steel square pipe manufacturers, suppliers, factory, 201 Stainless Steel Pipe, TP 316 Stainless Steel Pipe, Stainless Steel Pipe, TP 304 Stainless Steel Pipe, 304 Stainless Steel Pipe, Welded Stainless Steel Pipe