With the development of social and economic strength, steel structure processing industry is very important. Steel structure processing will be affected by various forms in the process of use, so the steel should have good mechanical properties and processing performance to ensure the safety and reliability of the structure. For steel processing components of the process, I believe we all understand. But what kind of usability should steel structure processing materials have? At present, there are many kinds of steel, only a few of which meet the requirements of steel structure, such as l6Mn in low alloy steel, 20 manganese vanadium steel for high strength bolts, etc. So, what kind of usability does steel structure processing materials need?
1. Plasticity: the plasticity of steel generally refers to the property of significant plastic deformation without fracture after the stress exceeds the yield point. The main indexes to measure the plastic deformation ability of steel are elongation and reduction of area.
2. Cold bending performance: the cold bending performance of steel is a measure of the resistance of steel to cracks when it is bent to produce plastic deformation at room temperature. The cold bending performance of steel is to test the bending deformation performance of steel under the specified bending degree by cold bending test.
3. Strength: the strength index of steel consists of elastic limit, yield limit and tensile limit. The design is based on the yield strength of steel. High yield strength can reduce the weight of the structure, save steel and reduce the cost.
