About Steel wear-resistant material

Modern steel materials are accompanied by the development of the first industrial revolution, because the development of machinery and equipment needs high-performance steel materials, there are many types of steel materials for different application fields, like steel abrasives including Steel Shot, steel grit, steel cut wire shot etc, steel wear-resistant materials is one of them. Wear-resistant steel as a special steel began in the second half of the 19th century, in 1882, the British Hadfield (Robert Abbot Hadfield) invented high manganese steel, this kind of steel under high stress impact load surface work hardening, microhardness increased from 250 HV to about 700 HV, is conducive to improving the surface wear resistance. The inside of the workpiece still maintains excellent toughness, therefore, the steel has both wear resistance and safety, and is widely used in mining machinery, metallurgical machinery, construction machinery, tractor track plate and other wear-resistant parts under high load impact conditions.

In 1898, American mechanical engineer Taylor and metallurgical engineer White invented high-speed steel, the steel contains a large number of high hardness carbide and has excellent wear resistance, mainly used for the manufacture of thin edge and metal cutting tools, after more than 100 years of continuous development, the formation of tungsten high-speed steel, molybdenum high-speed steel, cobalt high-speed steel and other series, the range of application conditions continues to expand. In recent decades, the development and application of non-manganese series low-medium alloy wear-resistant steel has developed rapidly, and a series of series and relevant standards have been formed in the international community in the 1970s and 1980s, mainly including martensite, bainite and biphase wear-resistant steel series.

Chromium white cast iron originated in the early 20th century, after the second World War began to be widely used, the material contains Cr carbide and high strength matrix and has excellent wear resistance, in metallurgy, mining, building materials, thermal power generation and other fields are widely used, become recognized at home and abroad high-quality wear-resistant materials. It is similar with stainless steel, has Cr content, also good materials for Stainless Steel Shot. High vanadium high speed steel is a new kind of steel invented with the development of roll technology. The type of carbide in steel is MC type, which has high hardness and good wear resistance. In the 1980s, Japan's Kawasaki Steel Research Institute developed high vanadium high-speed steel wear-resistant rolls, and around 1990, Japan's Nippon Steel Company also successfully developed high vanadium high-speed steel rolls.

In China, in the mid-1990s, Tangshan Lianqiang Metallurgical Roll Co., Ltd. cooperated with the Iron and Steel Research Institute to take the lead in the development of centrifugal casting high speed steel rolls in China, and successfully applied to hot strip rolling mill, bar rolling mill, high speed wire rolling mill, etc. In 2001, Henan University of Science and Technology successfully developed high vanadium high speed steel, which was applied to hammer heads, lining plates and other products in the building materials industry.

After decades of development, the types of modern steel wear-resistant materials have been very complete, for impact wear, abrasive wear, erosion wear and other wear forms have formed a variety of types of wear-resistant materials series, many countries and regions have formed a perfect standardized system. In 1982, China issued the first national standard for wear-resistant materials (medium manganese anti-wear ductile iron GB3180-1982), after which, And successively released high manganese steel castings (GB5680-1985) which be good materials for metal abrasives steel shot, steel grit etc, anti-wear white cast iron technical conditions (GB8263-1987), cast high manganese steel metallography (GB/T13925-1992) 3 national standards for wear-resistant materials (as of 1992). After several revisions and improvements, at present, in the casting of steel wear-resistant materials, the formation of austenitic manganese steel, wear-resistant steel cast parts, chromium manganese tungsten anti-wear cast iron, anti-wear white cast iron, wear-resistant steel castings and other 10 national standards, in addition, There are also 4 wear-resistant material standards in the machinery industry and 14 wear-resistant material standards in the China Foundry Association and the strategic alliance for technological innovation in the steel wear-resistant material industry. In addition, in the electric power, building materials, ferrous metallurgy and other industries, there are also a number of wear-resistant material industry standards. There are many kinds of wear-resistant materials. Some of these materials are very good for metal abrasives, including high carbon steel shot, low carbon steel shot, steel grit, steel cut wire shot etc etc.