SUS420J2 material | chaling SUS420J2 | AsiaVest steel mold provided by the Dongguan City An Yongwei steel mold shop. Dongguan City An Yongwei mold steel shop (www.dgyongwei.com) is a professional "mold steel, DC53, SKD11.SUS440C, SUS420" of the company. Since its inception, we adhere to the "honesty, sound management" approach, the courage to healthy competition in the market, so that "Sweden Assab, Daido, Hitachi, Austria Bluff" brand has a good reputation. We adhere to the "service first, customers first" principle, the permanent mold steel Granville won the trust of customers congregation in special steel, and establish a good corporate image. Special Note: This information is for reference pictures and information, please contact us to obtain the most accurate information, thank you! Determines the shape of the mold shape of these products, processing quality and precision mold will determine the quality of these products. The future of China's mold industry restructuring after precision SUS420J2, the mold will be increasingly high SUS420J2 rods, mold steel requirements are also increasing. High-speed steel quality even without segregation, wear resistance, high toughness, to meet the requirements of the service life of the mold manufacturing. Different furnace, power is not the same. Not the same as the heating medium heating capacity is not the same, of course, will be different heating rate, in general, the heating due to thermal conduction effect, much faster than the box-type furnace in a salt bath furnace and lead bath heated faster than salt bath Furnace is also fast. In the sheet market, prices overall fell. Hot rolled coil prices relatively small decline, Shanghai, Hefei, t price fell 20-50 yuan week. Shanghai market is hot-rolled prices rose and then fell, the market traded poor business mentality turned pessimistic, increasing the prices of space. Plate dropping the overall market is vulnerable, Shanghai, Jinan and other places t price one week fell 20-80 yuan. Shanghai market, demand gradually weaker, and in turn replenish the resources of new goods into the market, the supply pressure is diminished. Businesses can only wait and see. Regardless of plastic mold, which allows the surface roughness of the cavity is extremely small, are required to be able to do almost a mirror shine. To achieve specular gloss SUS420J2 prices, the main point is that the steel must have not less than 38HRC hardness, preferably 40 ~ 46HRC, 55HRC achieve the best. To achieve specular gloss SUS420J2 suppliers, the first steel inclusions as little as possible, but can not have a bubble exists, and fibrous tissue uniform. In the mass production of the mold, in order to reduce wear, in addition to the cavity surface hardness, surface roughness is also an important condition. Hypoeutectoid steel for adoption. In order to refine the grain, homogeneous, eliminate stress, reduce the hardness of full annealing process. Castings, forgings, weldments and rolling commonly used. The steel is heated to 30-50 degrees Celsius above Ac3, usually carbon steel to 1.5-1.8min / mm; steel to 1.8-2.0min / mm insulation. Then the furnace was cooled to 500-600 degrees Celsius baked. After cooled baked. Near the end, businesses accelerate the phenomenon of increased shipments, the recent local cold-rolled prices dropping again, cold resources are more abundant. Slowdown in downstream demand growth, lower purchasing volume does not appear, the current high supply, the greater the market pressure on prices is difficult to rebound. And cold rolled prices are still some gaps.