中炭钢的强度较高,常用来制造轴,法兰,螺钉,活塞杆,刀架以及其它受力较大的零部件和结构。钢材含炭量越高,可焊性就越差。一般来说,金属的可焊性是按照形成裂缝的敏感性和在近缝区是否形成脆性段的实验数据来判断的。对于炭素钢的可焊性就是根据其含炭量来划分的,如下表。而焊 Medium carbon steel higher strength, commonly used to manufacture shafts, flanges, screws, piston rod, knife holder and other components and structures under greater stress. The higher the carbon content of steel, the worse the weldability. In general, the weldability of a metal is judged by the experimental data of the susceptibility of the crack to be formed and whether the brittle section is formed in the near-seam area. The weldability of carbon steel is divided according to its carbon content, as shown in the following table. And welding