X12CrMowVNBN10-1-1 heat-resistant stainless steel is a steel with excellent heat resistance, which is widely used in various equipment and components in high-temperature and corrosive environments. Its chemical composition is very special, with high levels of chromium, tungsten, vanadium and nitrogen, which give the steel excellent corrosion and heat resistance.
In terms of chemical composition, X12CrMowVNBN10-1-1 heat-resistant stainless steel has a carbon content range of 011-0.13%, this content of carbon can ensure the strength and hardness of the steel, but also avoid the formation of carbides, thus ensuring the toughness and plasticity of the steel. The chromium content is as high as 102-10.6%, this element is able to form a stable ferrochrome compound with the iron atoms in the steel, enhancing the corrosion resistance of the steel. In addition, the steel also contains a certain amount of nickel, manganese, niobium, molybdenum and vanadium and other elements, which work together to improve the comprehensive properties of the steel.
In terms of mechanical properties, X12CrMowVNBN10-1-1 heat-resistant stainless steel has excellent tensile strength and yield strength. The maximum tensile strength can reach 1000MPa, while the lower limit of yield strength is 700-800MPa. This strength of steel ensures stable operation of equipment in high temperatures and corrosive environments, while avoiding damage caused by material fatigue or corrosion. In addition, the steel also has good elongation and creep plasticity, which ensures the stability and reliability of the equipment during long-term high-temperature operation.
In terms of material properties, X12CrMowVNBN10-1-1 heat-resistant stainless steel still has good long-lasting strength at 600 °C, and its creep endurance strength is about 90-100MPa at 100,000 hours. This property makes the steel suitable for equipment and components in a wide range of high-temperature and corrosive environments. In addition, the steel has sufficiently high room temperature strength, good hardenability, oxidation and corrosion resistance, good fracture toughness, and toughness comparable to conventional 12% CRMOV and 1% CRMOV steels.
In conclusion, X12CrMowVNBN10-1-1 heat-resistant stainless steel is a high-performance steel with excellent heat, corrosion and mechanical properties. It is widely used in equipment and components in various high-temperature and corrosive environments, such as petrochemical, aerospace and energy. Through in-depth understanding and research of its chemical composition, mechanical properties and material properties, we can better leverage its advantages and promote technological progress and development in related fields.