The performance indicators of steel are generally divided into mechanical properties, chemical properties and process properties. Among them, the process performance refers to the performance of the steel's ability to withstand various processing and processing.
1. Tensile performance: tensile performance is an index reflecting the tensile properties of steel, including yield strength, tensile strength and elongation. Yield strength is the basis for the value of steel strength in structural design.
2. Impact performance: Impact performance refers to the ability of steel to resist impact loads. The chemical composition of steel, the quality of smelting, processing and even the temperature network have a significant impact on the impact performance.
3. Fatigue performance: when subjected to alternating loads, the brittle fracture occurs suddenly when the stress is much lower than its yield strength, which is called fatigue failure. Fatigue damage occurs suddenly in a low-stress state, so it is extremely harmful and often causes catastrophic accidents.
