Customized Size 304L Stainless Steel Brushing Square Tube is a kind of high-alloy steel that can resist corrosion in air or chemical corrosive medium. Stainless steel has beautiful surface and good corrosion resistance. It does not need to undergo surface treatment such as color plating, but can play the role of stainless steel. Inherent surface properties of more than 12% chromium. Therefore, many machinery factories often do not do any paint treatment in order to show that they are stainless steel, and the black material (the so-called black material is the name of general steel) must be treated with anti-rust.
The corrosion resistance of Customized Size 304L Stainless Steel Brushing Square Tube depends on the alloying elements contained in the steel. Chromium is the basic element for stainless steel to obtain corrosion resistance. When the content of chromium in steel reaches about 12%, the action of chromium and oxygen in corrosive medium forms a thin oxide film on the surface of steel, which can prevent the matrix of steel. further corrosion. In addition to chromium, the commonly used alloying elements are nickel, molybdenum, titanium, niobium, copper, nitrogen, etc., to meet the requirements of various uses for the structure and properties of stainless steel.
301—Good ductility, used for molded products. It can also be hardened by mechanical processing. Good weldability. Wear resistance and fatigue strength are better than 304 stainless steel. Model 302—corrosion resistance is the same as 304, but the strength is better due to the relatively high carbon content. Model 303 - It is easier to cut than 304 by adding a small amount of sulfur and phosphorus. Type 316 - the second most widely used steel after 304, mainly used in the food industry and surgical equipment, adding molybdenum to obtain a special structure that is resistant to corrosion. Compared with 304, it has better resistance to chloride corrosion, so it is also used as a community letter box.
The types of stainless steel materials include martensitic stainless steel, austenitic stainless steel, ferritic stainless steel, austenitic-ferritic duplex stainless steel, etc.
1. Martensitic stainless steel: high strength, but poor plasticity and weldability.
2. Austenitic-ferritic duplex stainless steel: It has the advantages of both austenitic and ferritic stainless steel, and has superplasticity.
3. Austenitic stainless steel: It contains more than 18% chromium, and also contains about 8% nickel and a small amount of molybdenum, titanium, nitrogen and other elements. It has good comprehensive performance and is resistant to corrosion by various media.
4. Ferritic stainless steel: 12% to 30% chromium. Its corrosion resistance, toughness and weldability increase with the increase of chromium content, and its resistance to chloride stress corrosion is better than other types of stainless steel.
Customized Size 304L Stainless Steel Brushing Square Tube stainless steel materials are very common. We can learn about the composition of stainless steel, the type of stainless steel and the type of stainless steel. For more related knowledge, pay attention to our website.