15CrMo steel mechanical properties

15CrMo is a low-alloy steel commonly used in the manufacture of high-temperature and high-pressure equipment, petrochemical equipment, boilers and pipelines. The following are detailed information about some mechanical properties and mechanical properties of 15CrMo steel:

1. Strength and hardness: 15CrMo steel has high strength and hardness. Its yield strength typically ranges from 295 to 440 MPa (MPa), its tensile strength ranges from 440 to 590 MPa, and its hardness ranges from approximately 120 to 160 HB (Brinnell hardness).

2. Ductility: 15CrMo steel has good ductility, and its ductility can be adjusted through appropriate heat treatment. Common yield elongation is between 20% and 30%.

3. Toughness: 15CrMo steel has good toughness and can maintain stable performance under high stress. This is an important characteristic when it is subjected to loads under high temperature and high pressure conditions.

4. Creep resistance: 15CrMo steel has a certain resistance to creep, but compared to other high-temperature alloy steels, its creep resistance is slightly lower. Therefore, in equipment that is used at high temperatures for a long time, attention needs to be paid to controlling temperature and stress to avoid material failure caused by creep.

5. Welding performance: 15CrMo steel has good welding performance and can use common welding methods, such as arc welding, gas shielded welding, etc. However, attention needs to be paid to controlling the preheating temperature and subsequent heat treatment during the welding process to avoid cold cracks and reduce residual stress.

Please note that these performance parameters are typical values under normal circumstances, and the specific mechanical properties and mechanical properties may be affected by factors such as the specific composition of the material, heat treatment conditions, and processing techniques. If you need more detailed or specific data, it is recommended to refer to relevant standards or consult a professional materials engineer.

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