一、生产方式

1、 Production mode

冷弯型钢：以热轧或冷轧带钢为坯料，在冷状态下通过弯曲成型工艺制成的各种截面形状尺寸的型钢。这种生产方式不需要高温加热，因此能耗相对较低。

Cold formed steel: Various cross-sectional shapes and sizes of steel made from hot-rolled or cold-rolled steel strips through bending forming processes in a cold state. This production method does not require high temperature heating, so the energy consumption is relatively low.

热轧型钢：则是用加热后的钢坯通过轧制工艺制成的不同几何断面造型的钢材。热轧过程需要高温加热钢坯，能耗相对较高。

Hot rolled steel: refers to steel with different geometric cross-sectional shapes made from heated steel billets through rolling processes. The hot rolling process requires high-temperature heating of steel billets, which consumes relatively high energy.

二、截面形状与尺寸

2、 Section shape and size

冷弯型钢：截面形状可以根据需要进行设计，具有结构合理、壁厚均匀的特点。而且，冷弯型钢可以生产壁厚较薄、截面形状复杂的型材，这是热轧方法难以实现的。

Cold formed steel: The cross-sectional shape can be designed according to needs, with the characteristics of reasonable structure and uniform wall thickness. Moreover, cold-formed steel can produce profiles with thin wall thickness and complex cross-sectional shapes, which is difficult to achieve through hot rolling methods.

热轧型钢：截面形状相对固定，虽然也有多种规格可选，但在复杂度和灵活性方面不如冷弯型钢。

Hot rolled steel: The cross-sectional shape is relatively fixed, and although there are multiple specifications to choose from, it is not as complex and flexible as cold-formed steel.

三、材料性能

3、 Material properties

冷弯型钢：由于冷弯过程中材料发生塑性变形，弯角处会出现冷弯效应，即强度提高、塑性降低。这种特性使得冷弯型钢在某些需要高强度的应用中具有优势。

Cold formed steel: Due to plastic deformation of the material during the cold bending process, a cold bending effect occurs at the corners, resulting in an increase in strength and a decrease in plasticity. This characteristic gives cold-formed steel an advantage in certain applications that require high strength.

热轧型钢：材料经过高温加热和轧制后，塑性得到大幅度提高，但强度可能相对较低。此外，热轧型钢的截面残余应力分布与冷弯型钢不同。

Hot rolled steel: After high-temperature heating and rolling, the plasticity of the material is greatly improved, but the strength may be relatively low. In addition, the residual stress distribution in the cross-section of hot-rolled steel is different from that of cold-formed steel.

四、应用领域

4、 Application Fields

冷弯型钢：主要应用于轻型钢结构、汽车、集装箱、钢结构建筑等领域。由于其截面经济合理、品种繁多、外观良好等特点，冷弯型钢在这些领域中具有广泛的应用前景。

Cold formed steel: mainly used in light steel structures, automobiles, containers, steel structure buildings and other fields. Due to its economically reasonable cross-section, wide variety, and good appearance, cold-formed steel has broad application prospects in these fields.

热轧型钢：则广泛应用于机械制造、化工设备、造船、矿山、石油和铁道等部门。热轧型钢具有强度高、塑性好的特点，适合用于承受较大载荷的构件。

Hot rolled steel: It is widely used in mechanical manufacturing, chemical equipment, shipbuilding, mining, petroleum, and railway industries. Hot rolled steel has the characteristics of high strength and good plasticity, making it suitable for components that can withstand large loads.

五、残余应力与连接方式

5、 Residual stress and connection method

冷弯型钢：冷弯而形成的残余应力，与热轧型钢由焊接和温度变化而形成的残余应力在大小和分布上完全不同。

Cold formed steel: The residual stress formed by cold bending is completely different in magnitude and distribution from the residual stress formed by welding and temperature changes in hot-rolled steel.

热轧型钢：结构限制截面板件宽厚比，不允许出现局部屈曲。而冷弯型钢截面板件宽厚比大，设计中允许局部屈曲并利用板件屈曲后强度。此外，两者在连接方式上也存在差异，这取决于具体的应用场景和需求。

Hot rolled steel: The width to thickness ratio of the structural restricted section plate is not allowed to experience local buckling. The width to thickness ratio of cold-formed steel section plates is large, and local buckling is allowed in the design to utilize the strength of the plate after buckling. In addition, there are differences in the connection methods between the two, depending on the specific application scenarios and requirements.

以上的精彩内容来自：济南型钢更多精彩内容请点击我们的网站查看更多：http://www.jnhxtcg.com

The above exciting content comes from: Jinan Steel. For more exciting content, please click on our website to view more: http://www.jnhxtcg.com