When it comes to HP100-400 surfacing wear-resistant steel plate, perhaps everyone knows that it is a wear-resistant steel plate. In fact, there are many models and types of wear-resistant steel plates. At this time, someone will ask what is hardfacing wear-resistant steel? What are its characteristics? Let's learn more about the wear-resistant steel plate through the introduction of the model HP100-400 of the wear-resistant steel plate.
Wear Resistant Steel Plate refers to a special plate product designed for use under large-area wear conditions. At present, the commonly used wear-resistant steel plates are made of low-carbon steel or low-alloy steel with good durability and plasticity through hardfacing welding method to compound a certain thickness of alloy wear-resistant layer with high hardness and excellent wear resistance commodity. In addition, there are cast wear-resistant steel plates and alloy quenched wear-resistant steel plates.
Wear-resistant steel plate is composed of low-carbon steel plate and alloy wear-resistant layer. The alloy wear-resistant layer is usually 1/3~1/2 of the total thickness. During operation, the matrix provides the strength, resistance, and plasticity against external forces, and the alloy wear layer provides the wear resistance required by the specified working conditions.
There is a metallurgical connection between the wear-resistant steel plate alloy wear-resistant layer and the substrate. After special equipment, using automatic hardfacing welding technology, the high-hardness self-maintaining alloy welding wire is uniformly welded on the substrate. The composite layer has one to two layers or even multiple layers. During the composite process, because the alloy shortening ratio is different, it shows a uniform transverse direction. Cracks, this is a significant feature of wear-resistant steel plates.
The alloy wear-resistant layer is mainly made of chromium alloy, and other alloy components such as manganese, molybdenum, niobium, nickel, etc. are also added. The carbides are scattered in the form of fibers in the metallographic arrangement, and the fiber direction and appearance are straight. The microhardness of carbide can reach above HV1700-2000, and the surface hardness can reach HRC60-65. Alloy carbide has strong stability at high temperature, adheres to high hardness, and also has excellent oxidation resistance. HP308 can be used completely and normally within 800 ℃.
Wear-resistant layer manifestations include narrow channel (2.5-3.5mm), wide channel (8-12mm), curve (S, W), etc.; mainly chromium alloy is the main form, and manganese, molybdenum, niobium, nickel, and boron are added together. And other alloy components, the carbides in the metallographic arrangement are distributed in a fibrous shape, and the fiber direction and the appearance are straight. The carbide content is 40-60%, the microhardness can reach above HV1700, and the surface hardness can reach HRC60-65.
Wear-resistant steel plates are mainly divided into HP100 anti-low-stress abrasive wear, HP200 anti-high-stress rolling wear or medium-impact abrasive wear, HP300 anti-high temperature wear, HP400 anti-strong impact abrasive wear, etc. The total thickness of the wear-resistant steel plate can reach 5.5 (2.5+3) mm at least, and the thickest can reach 30 (15+15) mm; the wear-resistant steel plate can roll wear-resistant pipes with a minimum diameter of DN400 or more, and can be processed into wear-resistant bends Head, wear-resistant tee, wear-resistant reducer.
After reading the introduction of HP100-400 surfacing wear-resistant steel plate, do you have a deeper understanding of wear-resistant steel plate?
The company's main wear-resistant steel plate models are: HP100 anti-low-stress abrasive wear, HP200 anti-high-stress rolling wear or medium impact abrasive wear, HP300 anti-high temperature wear, HP400 anti-strong impact abrasive wear.