As a hot - strength alloy structural steel, 15CrMo demonstrates excellent performance in medium - and high - temperature environments. It has good high - temperature strength. When in high - temperature working conditions for a long time, the strength decays slowly, enabling stable support for equipment operation. It has outstanding oxidation resistance. The dense and stable oxide film formed on the surface effectively resists high - temperature oxidation and erosion. Its creep resistance is excellent. Under continuous high - temperature stress, the change in shape and size is extremely small, ensuring the long - term reliable service of the equipment.
In terms of size, various specifications can be produced on demand, such as pipes with different diameters, meeting the requirements for different diameters and pressure bearing of pipeline systems; there are also various profiles, suitable for the manufacture of various industrial structural parts. In the chemical composition, chromium and molybdenum elements work synergistically. Chromium builds an anti - oxidation defense line, and molybdenum strengthens high - temperature strength and creep resistance. The cooperation of the two makes the high - temperature performance of the steel more outstanding.
In the industrial field, it is the “main force” for high - temperature equipment in industries such as petroleum, chemical engineering, and electric power. The heating furnace tubes in refineries use it to withstand the scouring of high - temperature flue gas and oil materials; the steam pipelines in power stations rely on its characteristics of resisting high temperature and high pressure and creep resistance to ensure the stable transportation of steam. With these performances, 15CrMo becomes a key material for high - temperature pressure - bearing equipment, building a solid material foundation for the safe and efficient production of the energy and chemical industries.
