Baosteel 0Cr19Ni9NbN stainless steel

规格：

板棒线卷管齐全

硬度：

167-200

材质单：

随货配送

Austenitic stainless steel refers to stainless steel with an austenitic structure at room temperature. When the steel contains about, ~, about., it has a stable austenite structure. Austenitic chromium-nickel stainless steel includes the famous - steel and high - series steel developed on this basis by increasing the content and adding elements such as , , , , b, and so on. Austenitic stainless steel is non-magnetic and has high toughness and plasticity, but its strength is low. It cannot be strengthened through phase transformation. It can only be strengthened through cold working. If elements such as , etc. are added, it has good machinability. rAustenitic stainless steel was launched in Germany in 3 years and has always played the most important role in stainless steel. Its production and usage account for about 1% of the total production and usage of stainless steel. The steel grades are also the largest. There are many grades of austenitic stainless steel commonly used in China. The most common one is - type.
r3()3 33
< _ < Series: Chromium-nickel-manganese austenitic stainless steel
< r Series: Chromium-nickel austenitic stainless steel
< _ < r Model: Good ductility, used for molded products. It can also be hardened by mechanical processing. Good weldability. Wear resistance and fatigue strength are better than stainless steel, products such as: springs, steel structures, wheel covers.
< rModel: It has a large amount of chromium and nickel, so it has good heat resistance and oxidation resistance. Products such as: heat exchangers, boiler components, and jet engines.
< rModel: After this, the second most widely used steel type, mainly used in the food industry and surgical equipment, with the addition of molybdenum to obtain a special structure that resists corrosion. Because it has better resistance to chloride corrosion than 3, it is also used as marine steel. 3 is usually used in nuclear fuel recovery devices. Grade / grade stainless steel is also generally qualified for this application grade. Especially used in chemical, seaside and other corrosive environments, ship assembly, and building materials.
< rModel: Added stabilizing element niobium, suitable for welding aircraft parts and chemical equipment.
rStrictly speaking, since the manganese in the series of stainless steels plays a small role in the electrode potential in the steel, the protective effect of the oxide film formed is very low and cannot play a role in corrosion resistance. Therefore, the Austrian alloying of manganese Tensite stainless steel cannot be called true stainless steel. At present, many domestic manufacturers have reduced chromium and nickel and increased the manganese content in stainless steel due to cost considerations. Experts believe that the reason why stainless steel is rust-free is because of the presence of chromium and nickel. Reducing the content of these two components will reduce the anti-rust performance.