KHA77 sheet, Yong Wei mold steel, Luoding KHA77 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! Usually when forging die work. Its cavity surface temperature up to 300 ~ 400 ℃ hot extrusion die up to more than 500 a 800 ℃; casting mold cavity temperature and the type of material and the die-casting temperature. As ferrous metal die-casting mold cavity temperature up to 1000 ℃ or more. This high mold temperature will significantly reduce the hardness and strength of the cavity surface, in use, prone to play crib. To this end. The basic performance requirements for thermal die steel is high resistance thermoplastic change, including high hardness and high temperature strength, high resistance thermoplastic change Japan KHA77 mold steel, actually reflects the high stability of steel tempering. Uniform quality steel components, high tonnage cold shears, cut the head end surface smooth and tidy, but shoddy material difference due to the material, there are often cut off the meat first end surface phenomenon, namely uneven KHA77 price, and no metallic luster. And because of shoddy material product manufacturers cut less head, head and tail will be a big ears. Processing and heat treatment of high alloy tool steel, low alloy tool steel than is usually more difficult, so the mold manufacturing costs are also higher KHA77 wholesalers, and ASP-23 high speed steel powder its machinability KHA77, manufacture than traditional methods Fortunately, high-alloy tool steel, dimensional stability heat treatment is relatively good, and easy to predict. More because of ASP-23 high hardness, good toughness and high temperature tempering characteristics, especially for surface treatment, very easy to process. In the heat treatment of steel materials, the practice on the basis of years people have come up a set of simple forms of memory: called a graph, two curves, four fire, five changes. A graph is called iron-carbon alloy equilibrium phase diagram or called iron-carbon alloy state diagrams, organizational change can be summed up many of the common law and the critical parameters of the equilibrium state of the steel material. As more high-grade, high-quality iron ore supply on the market, Chinese steel mills in the low-grade ore negotiations already have more bargaining power. In 57% to 58% grade sinter FMG supply, for example, Chinese steel mills to get the discount for the actual Platts index is the highest compared with 14% discount. January super-special meal discounts had reached $ 4 per dry ton, and now even reached $ 12 per dry ton. Platts recently released data show that the new export orders index in October amounted to 70.96 points, up 12.91 points compared with September, which means that China's steel export volume growth trend will continue in October. In contrast, China's steel sentiment index in October was only 38.09 points, becoming the lowest level in January this year. The data also show that steel production index in October compared with September fell 6.37 points to 35 points, the fourth consecutive month the index has been below 50 points, reflecting market participants expect steel production will decline.