24 Metal Materials Commonly Used in Mold Processing and Their Characteristics (Three)
24 Metal Materials Commonly Used in Mold Processing and Their Characteristics (Three)
10. DC Cr12MoV - wear-resistant chromium steel
Made in China, it has lower carbon content than Cr12 steel, and with the addition of Mo and V, the uneven carbide has been improved. Mo can reduce carbide segregation and improve hardenability, and V can refine grains and increase toughness. This steel has high hardenability, and the cross section can be completely hardenable below 400mm, and it can still maintain good hardness and wear resistance at 300~400℃. It has higher toughness than Cr12. The volume change during quenching is small. It also has high wear resistance and good comprehensive mechanical properties. Therefore, various molds with large cross-sections, complex shapes, and large impact can be manufactured, such as ordinary drawing dies, punching dies, punching dies, blanking dies, trimming dies, rolling dies, wire drawing dies, cold extrusion dies, Cold cutting scissors, circular saws, standard tools and measuring tools, etc.
11. SKD11——Tough chromium steel
Produced by Hitachi Co., Ltd., Japan. Technically, the casting structure in steel is improved, the grains are refined, the toughness and wear resistance are improved compared to Cr12MoV, and the service life of the mold is extended.
12. D2——High carbon high chromium cold work steel
Made in the United States. It has high hardenability, hardenability, wear resistance, good high temperature oxidation resistance, and good rust resistance after quenching and polishing. Heat treatment deformation is small. It is suitable to manufacture various cold work molds, cutting tools and measuring tools that require high precision and long life, such as drawing dies, cold extrusion dies and cold shearing knives.
13. SKD11 (SLD) - non-deformation tough high chromium steel
Produced by Hitachi Co., Ltd., Japan. As the Mo and V content in the steel increases, the casting structure in the steel is improved, the grains are refined, and the carbide morphology is improved. Therefore, the strength and toughness (bending strength, deflection, impact toughness, etc.) of this steel are higher than those of SKD1 and SKD1. With high D2, the wear resistance is also increased, and it has higher temper resistance. Practice has proven that the life of this steel mold is improved compared to Cr12MoV. Often used to manufacture molds with high requirements, such as drawing molds, impact grinding wheel molds, etc.
