Field of application: bucket or dump blade is a replaceable element of the working body of road construction equipment, designed to extend the service life of the equipment. During operation, it is exposed to abrasive and shock loads and as a result requires periodic replacement. With intensive and extreme use, spare parts are subject to wear. When replacing components for special equipment, it is important to pay attention to the quality of the raw materials from which the knives are made. The production of cutting edges from high-strength, high-quality steel can increase the productivity of the machine.