Seamless alloy steel pipe stock ASTM A335 P91, seamless steel pipe used in boiler tubes, heat exchanger tubes and other industries, can be used as steel pipes for high-temperature superheaters and reheaters in subcritical and supercritical boilers with wall temperatures ≤625°C, as well as wall High-temperature headers and steam pipes with temperatures ≤600℃ can also be used as nuclear power heat exchangers and petroleum cracking unit furnace tubes.
ASTM A335 P91 is a high-temperature alloy steel that is a low-alloy chromium-molybdenum steel. It is widely used in pipelines and equipment under high temperature and high pressure environments, such as petrochemical, electric power, nuclear power plants and other fields. The main components of this material are chromium, molybdenum, copper, manganese, silicon, phosphorus, sulfur and other elements. The content of chromium and molybdenum is relatively high, which can improve the high temperature resistance and oxidation resistance of the material.
ASTM A335 P91 material has excellent mechanical properties and can still maintain good strength and toughness under high temperature and high pressure environments. The material is also very resistant to oxidation, which can effectively extend the service life of pipes and equipment. In addition, the material also has good welding performance, making construction and maintenance convenient.
Because ASTM A335 P91 material has these excellent properties, it is widely used in some high temperature and high pressure environments. For example, in the petrochemical industry, pipes and equipment made of ASTM A335 P91 can withstand chemical erosion and corrosion under high temperatures and pressures, ensuring the safe operation of equipment. In the fields of electric power and nuclear power plants, pipes and equipment made of ASTM A335 P91 can withstand the corrosion and erosion of steam and water vapor and other media under high temperature and pressure, ensuring the normal operation of the equipment.