20cr1mo1vtib is a kind of low-alloy steel, which is mainly used to manufacture the main steam pipe, thermal reheater pipe and main steam pipe of high temperature and high pressure boiler. This material belongs to chromium-molybdenum-vanadium-titanium-boron alloy steel, which is enhanced by the addition of chromium (Cr), molybdenum (Mo), vanadium (V), titanium (Ti) and boron (B) to improve its strength, toughness and corrosion resistance at high temperatures. 20Cr1Mo1VTIB steel has excellent high-temperature mechanical properties and good oxidation resistance, which is an ideal material for high-temperature and high-pressure components in power stations and petrochemical industries.
High temperature intensity: Through a reasonable ratio of alloying elements, the yield strength and tensile strength of the material can be improved, especially in the high-temperature environment, and it has good mechanical properties.
Good toughness and creep resistance: The addition of vanadium and titanium can refine the grains and improve the toughness and creep resistance of the material.
Excellent heat and oxidation resistance: The addition of chromium and molybdenum improves the heat resistance and oxidation resistance of the material, and is suitable for long-term high-temperature working environment.
Good welding performanceBy controlling the alloying elements and carbon content, it ensures good welding performance and is suitable for welding manufacturing of complex structures.
20Cr1Mo1VTIB is mainly used in:
Power industry: It is used in the manufacture of high-temperature and high-pressure components such as main steam pipes, thermal reheater pipes and main steam pipes of ultra-supercritical and supercritical boilers.
Petrochemical industry: It is suitable for the manufacture of high-temperature and high-pressure pipelines and equipment.
Aerospace and Military: Can be used to manufacture extremely demanding high-temperature components and structures.
Heat treatment: 20Cr1Mo1VTIB steel needs to be subjected to proper heat treatment processes such as normalizing, quenching, and tempering to achieve the desired mechanical properties.
WeldingIn the welding process, measures such as preheating and post-heat treatment should be taken to prevent the occurrence of welding cracks and improve the performance of welded joints.
Due to the special performance and application requirements of 20Cr1Mo1VTIB, its production and processing need to follow strict process standards. When designing and using the structure of this material, it is advisable to consult with professional materials and engineers to ensure a safe and reliable application.