Good machining surface corrosion and corrosion resistance: easy pattern formed plastic parts, and some plastics, such as polyvinyl chloride in hydrochloric acid gas generated during the forming die steel 4CR13 of the cavity is corrosive. So for corrosive gases used in plastic, to consider the corrosion-resistant steel is good. To a reasonable choice of the chemical composition of the steel and the use of reasonable refining, thermal processing and heat treatment process to make the mold material wear resistance, strength and toughness to achieve the best fit. Strong wear resistance steel mold, in addition to steel mold steel also has the ability to thermal fatigue. Hot work die steel under service conditions in addition to cyclical changes in load, but also subjected to high temperatures and periodic thermal shock effect. Compared with the hardening atmosphere under vacuum oil quench hardening mold surface is relatively uniform, but slightly higher, mainly due to the vacuum heating, mold steel surface was an active state, not removal, does not produce an oxide film impede cooling. Heating under vacuum, the surface of the steel degassing effect, and thus has high mechanical properties, the higher the degree of vacuum in the furnace, the higher the bending strength. Vacuum quenching, the fracture toughness of the steel increased die life generally increased by 40% to 400% higher than the conventional process, or even higher. Cold mold vacuum hardening technology has been more widely used. Technological backwardness easily found, poorly managed easily overlooked. Domestic enterprises have adopted over the last part of the mold workshop-style management model, truly modern enterprise management, not more. Currently mold manufacturer uneven conditions seriously affected the accuracy and quality of the mold. Zhuhai such as precision mold steel heat treatment areas, different mold materials, mold making homemade quality in appearance and service life difficult match with foreign products. Zhuhai steel mold-made molds are many and abroad using special mold materials used, their mechanical properties, wear resistance, corrosion resistance and superior brightness polishing. Chinese standard GB / T1299-2000 "alloy tool steel" provisions, annealed steel supplier 4CR13, for different grades, hardness value should be less than a certain value, or within a certain hardness range 4CR13 price, such as: hardness of 197- 241HBW hardness 217-269HBWCr5Mo1V hardness ≤255HBW. Depending on the sample quenched hardness grades, generally between 53-64HRC. Construction steel market prices in order to stabilize the main southern construction steel prices steady rise; plate market prices basically stable; hot rolled coil prices to stabilize the main; cold-rolled coil prices steady fall; Tudu coil market prices basically stable. National Development and Reform Commission deputy director of the National Energy Bureau Wu-hsiung said the 9th, to promote the development of coal-fired energy saving and emission reduction upgrading and transformation, Energy Bureau scientific power development plan, reasonably determine the annual thermal power construction scale and guide local optimization of thermal power project layout on the low utilization hours of thermal power (4500 hours or less) areas, to strictly control its thermal power construction scale year. Yong Wei mold steel _4CR13 price _ Jiangmen 4CR13 provided by Yong Wei steel mold. Looking for "Die steel, DC53, SKD11.SUS440C, SUS420" reliable supplier, choose to have the entire network ShangMeng Certified: Dongguan City An Yongwei mold steel shop (www.dgyongwei.com), trustworthiness and reliability, now click on "Commercial Union Support" on page live chat with us now!