Supply KD11S

KD11S KD11S is the research and production of high frequency KOSHUHA latest model of pan with cold die steel, excellent workability, extend tool life and improve processing efficiency, cutting surface more detailed, even after cutting the heat treatment, and heat treatment under the same conditions SKD11 , extend tool life and improve processing efficiency, cutting surface more detailed, even after cutting the heat treatment, the mechanical properties superior to SKD11, SKD11 superior fatigue strength, toughness and wear resistance than SKD11 full play SKD11 of basic performance, the machinability has an impressive improvement. KD11S is new common cold work tool steel with excellent machinability, maintaining the basic characteristics of SKD11 steel patented steel. Cutting the increase mainly due to the control of the carbide morphology, which can prolong life and improve the efficiency of the machining cutting tools, such as milling machines, under certain cutting length cutting speed can be increased by 50% compared with the corresponding SKD11. When lathe, machining surface roughness is improved. And after the heat treatment can still be cutting, such as after heat treatment under 60HRC, it can still be tapping processing. Number of tapping the tool with respect to time and broken SKD11 has improved significantly. The steel and heat treatment conditions SKD11 same deformation after heat treatment also SKD11 same recommended heat treatment process as follows: ① quenching: 500/600 ℃ first preheat → 800/850 ℃ second preheating → 1020 / 1040 ℃ austenitizing heating → oil cooling to 200 ℃ made air-cooled; also available for air hardening or gas quenching. ② Tempering: tempering temperature is 170 ~ 200 ℃; high temperature tempering temperature is 500 ~ 530 ℃. Note that the heat treatment after machining is for the purposes of tempering pieces. After the heat treatment of steel with respect to SKD11 high fatigue strength and wear resistance. Factory state: HB210-240 material properties: 1. Excellent processing performance. 2. Excellent machinability after heat treatment. 3. Excellent toughness. The excellent wear resistance.