Bearing steel application scope and technical standards

Application of bearing steel and high temperature technology standard curve high temperature and high temperature bearing steel bearing steel application category is used in the production of manufacturing enterprises rolling bearing of ball bearing, high temperature impact roller and sleeve and other types of steel, also can be used in the manufacture and technology of China precision measuring tool, cold stamping dies, machine tool by screw, such as punching die, measuring tool, tap and fine matching parts of diesel engine oil pump. High temperature bearing steel is used to design and manufacture of a ball bearing, roller and high temperature causes the steel bearing ring. High temperature bearing steel specification high temperature mainly implement GB/T18254 - bearing steel consumption 2002 quality standards and protocols to comply with laiwu GCr15JD bearing forging the temperature of the request by the user, including the agreement GCr15JD GB/T18254 - strict quality requirements 2002 prospectus, GCr15JD 10 PPM or less oxygen content request, center 1 or less. 0 level segregation level, control components, described the length of the offset and the size of GB/T18254 - strictly 2002 specification. At work under the high temperature impact bearing a huge pressure and friction, so you can request for high temperature bearing steel is high and the average hardness and wear resistance, and high elastic theory limit. Chemical composition of high temperature bearing steel average sex, non-metallic inclusion content and spread, the distribution of carbide and other requests are very need tough, is all consumption in iron and steel enterprise development request strict material of choice. Standardization management organization ISO 1976 international market will be in some countries, the high temperature lead to bearing steel grade standard of gm in China international norms, high temperature bearing steel production can be divided into: the hardening type high temperature bearing steels, appearance no hardening type high temperature bearing steel, high temperature stainless bearing steel, high temperature environment such as high bearing steel, a total of 17 steel grade four class. Some countries increase the high temperature bearing steel or alloy for a class of special purpose. Our country has been classified as a standard high temperature bearing steel classification method and ISO, corresponding to the high temperature high carbon chromium bearing steel, carburized high temperature bearing steel, stainless steel corrosion resistance high temperature bearing steel, high temperature bearing steel four classes. The previous: what is the bearing steel material next article: no