社会经济实力的发展，使得钢结构加工行业显得异常的重要。钢结构加工在使用过程中会受到各种形式的作用，所以要求钢材应具有良好的机械性能和加工性能，以保证结构安全可靠。对于钢结构加工构件时的流程，相信大家都是明白的。但钢结构加工材料的要具有什么样的使用性呢？ 当下钢材的种类很多，符合钢结构要求的只是少数几种，如低合金钢中的l6Mn，用于高强螺栓的20锰钒钢等。那么，钢结构加工的材料的需要具有什么样的使用性呢？
The development of social and economic strength makes the steel structure processing industry exceptionally important. Steel structure processing is subject to various forms of action during use, so it is required that the steel should have good mechanical and processing properties to ensure the safety and reliability of the structure. I believe everyone understands the process of processing steel structure components. But what kind of usability should steel structure processing materials have? There are many types of steel currently available, but only a few meet the requirements of steel structures, such as l6Mn in low alloy steel and 20 manganese vanadium steel used for high-strength bolts. So, what kind of usability does the material required for steel structure processing have?
1、塑性：钢材的塑性一般指应力超过屈服点后，具有显著的塑性变形而不断裂的性质。衡量钢材塑性变形能力的主要指标是伸长率和断面收缩率。
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 indicators for measuring the plastic deformation ability of steel are elongation and reduction of area.
2、冷弯性能：钢材的冷弯性能是衡量钢材在常温下弯曲加工产生塑性变形时对产生裂纹的抵抗能力。钢材的冷弯性能是用冷弯实验来检验钢材承受规定弯曲程度的弯曲变形性能。
2. Cold bending performance: The cold bending performance of steel is a measure of its resistance to cracking during plastic deformation during bending processing at room temperature. The cold bending performance of steel is to use cold bending experiments to test the bending deformation performance of steel under specified bending degrees.
3、强度：钢材的强度指标由弹性限度，屈服限度和抗拉限度，设计时以钢材的屈服强度为基础，屈服强度高可以减轻结构的自重，节省钢材，降低造价。
3. Strength: The strength indicators of steel include elastic limit, yield limit, and tensile limit. The design is based on the yield strength of the steel. High yield strength can reduce the self weight of the structure, save steel, and reduce cost.