1. High-carbon and high-chromium cold work steel made in the United States, with high hardenability, hardenability, wear resistance, good high temperature oxidation resistance, good rust resistance after quenching and polishing, small heat treatment deformation, suitable for manufacturing all kinds of cold work molds, tools and measuring tools that require high precision and long life, such as stretching dies, cold extrusion dies, cold shear knives, etc.
2. If the enterprise pays more attention to performance and the cost requirements are not very high, then SKD11 can be selected; If the enterprise is more concerned about cost control, then D2 is a better choice. No matter which kind of die steel you choose, you need to pay attention to the quality of the material, as well as the conditions of the processing and use environment, so as to ensure the performance and service life of the die steel.
3. SKD11 and D2 originally belonged to high-carbon steel and high-chromium refrigeration die steel. It has very good wear resistance and micro-deformation of heat treatment process, heat treatment process HRC59-61. It is widely used at the level of continuous metal stamping dies and needle blanks.
However, the fracture toughness is average.
4. Compared with RW34 powder steel and M390, it should be better than M390, it is wear-resistant and durable, and it is easy to make; Compared with M390, S3OV powder steel should be better than S3OV powder steel, wear-resistant and durable; M390 powdered steel is a kind of high-chromium Matian loose iron type corrosion-resistant steel, the first phase structure is a large number of carbide inscriptions, vanadium carbide particles, evenly distributed on the CR12% substrate.
5. SKD11 is the Japanese version of D2. It should be said that it is the same steel as D2 in the United States, and the composition is also very close. However, the chromium content range of Japanese D2 should be slightly higher, so the rust resistance is better than that of the American version of D2. In addition, if it is a Japanese original heat-treated D2, its toughness is higher.
1. The cost of steelmaking is different. The alloy composition of D2 die steel is higher than that of SKD11 die steel, the cost is higher than that of SKD11 die steel, and the selling price is also higher than that of SKD11 die steel. Abrasion resistance is not the same.
The wear resistance of D2 die steel is about 2 times that of SKD11 die steel.
2. What is the difference between D2 die steel and CR12MOV and SKD11 The characteristics of D2 die steel High wear-resistant, slightly deformed cold work die steel, wind-hardened tool steel, carbon content up to 5%, chromium content up to 15%, hardness up to 60HRC after heat treatment, but relatively ductility, toughness, rust resistance is weak, and the steel surface is difficult to do mirror polishing treatment.
3. SKD11 is the collective name of the Japanese Ministry of Industry, D2 is the American mold steel grade, and the alloy composition is CR12MO1V1. However, the composition of SKD11 alloy produced in China is lower than the D2 standard. The resistance to high temperature softening is different. When high heat is generated by high-speed stamping, the hardness of SKD11 decreases more quickly and the punch is more susceptible to wear.
4. The place of birth is different. The Ministry of Industry of Japan commonly known as SKD11 and D2 are American die steel models, and the alloying elements are CR12MO1V1.
However, the Chinese introduction of SKD11 alloy elements is smaller than D2. Second, the resistance to continuous high temperature and softening characteristics are different. When high fever is caused by mobile stamping processing, the hardness of SKD11 decreases rapidly, and the punching pin is easily damaged.
5. SKD11 is the collective name of the Japanese Ministry of Industry, D2 is the American mold steel grade, and the alloy composition is CR12MO1V1. For high-speed stamping dies, the wear resistance of D2 is about twice that of SKD11. Abrasion resistance properties are different.
6. Cold work die steel focuses on hardness and wear resistance. The carbon content is high, and alloying elements are added to increase hardenability and improve wear resistance. D2 die steel and SKD11 die steel are both commonly used cold work die steels. D2 die steel is a high wear-resistant cold work die steel, with a carbon content of up to 5%, a chromium content of 14%, and a hardness of 60-62HRC after heat treatment.