TOOL STEEL

1.2080 die steel belongs to high carbon and high chromium ledeburite steel, and it is also a widely used cold work die steel. The steel has good hardenability, wear resistance, and hot workability. Carbides are well distributed in the steel and can be used It is used to manufacture various cold work molds with complex shapes and heavy working conditions, such as cold die punches, thread rolling dies, wire drawing dies, material molds, metallurgical powder molds, woodworking cutting tools, cold cutting scissors drill sleeves, gauges and other tools. In our research and development, after repeated exploration and testing, we have formulated a reasonable smelting process and a special ingot mold and forging process to achieve a uniform and consistent material structure. In addition, we have boldly innovated the standard material processing and adopted the new technology of double-knife chipping. The efficiency is greatly improved, the cycle is shortened, and the cost is reduced.

SKD11 is a general-purpose cold work die steel with high wear resistance and toughness, high carbon and high chromium alloy tool steel and vacuum degassed refined steel. The steel is pure and has good hardenability and small quenching deformation.

SKD11 steel is softened by spheroidizing annealing and has good machinability. The carbide particles are fine and uniform. There is no need to worry about the special addition of molybdenum and vanadium, which is the quenching cracking strengthening element.

SKD11 is produced by Hitachi and Datong Steel Plants. Hitachi’s SKD11 is produced under the trade name SLD (the latest improved version is called SLD-MAGIC), and Datong Steel Plant’s trade name is DC11. Both have factories in the mainland, and are the most well-known in the industry, and the prices are also the highest. The steel is a kind of air-cooled hardening cold work die steel widely used internationally. Smelted by electric furnace and remelted by electroslag, it has high purity, better toughness, uniform structure, good high temperature strength, toughness and high temperature fatigue resistance, and can withstand sudden temperature changes.

High hardness, high wear resistance eutectic carbide uniform, good toughness, not easy to crack, the hardness after quenching> 62HRC. The nitriding treatment time at 525℃ is 20h/30h/60h, the nitriding layer depth is 0.25mm/0.30mm/0.35mm, the surface hardness of the part is 1250HV; the nitriding treatment time at 570℃ is 2h, and the nitriding layer depth is 10~ 20μm, the surface hardness of the part is 950HV.

Tungsten hot work tool steels are of different types, namely, H21 to H26 types. These hot work tool steel have similar characteristics to that of high speed tool steel. The primary alloying elements in tungsten hot work tool steel include tungsten, chromium, carbon, and vanadium. They are resistant to distortion when they are air hardened, and have higher hardening temperature when compared to chromium hot work tool steel. Breakage of the tungsten hot work tool steel can be reduced if they are preheated to operating temperature before use. Thermal shock resistance and toughness of these hot work tool steel can be improved by reducing the carbon content.

1.2311 steel, German mold steel, the steel is produced through "ultra-pure" process, pre-hardened, showing a high degree of microscopic purity and excellent homogeneous structure, excellent polishing and photo-etching characteristics. After heat treatment, the processing and polishing performance is good, it can be nitrided, suitable for surface treatment such as chrome plating, the material has uniform hardness (up to 400mm thick), good toughness, and good mechanical processing performance. The gold structure is martensite and bainite.

1.2083 mold steel is German Buderus special steel, plastic mold steel, the steel is high Cr stainless steel, with Cr content as high as 15%, has excellent wear resistance, acid resistance and good polishing performance, and good workability . After quenching, it is more wear-resistant, suitable for electro-erosion operation, suitable for acidic plastics and molds that require good polishing.

1.2343 die steel belongs to electroslag remelting hot-work die steel. It has uniform material and superior machinability and polishability, good high toughness and high plasticity, high wear resistance at high and low temperatures, and overall hardening performance.

1.2714 is Ni-Cr-Mo steel characterized by high level harden ability and toughness, good resistance to repeated shocks, fairly good insensitivity to thermal shocks and good wear resistance.

Molds for pressing of chemically-aggressive plastic substances etc. all kinds of silicon steel sheet and high-speed blanking die. Precise stamping die. Cold extruding forming die. Cavitations Molds, Standard Mould Base, Compression Mould for SMC, blowing mould, Pet preform mold, plastic piping & plumbing injection molds.

In the case of proper heat treatment, the strength and toughness are excellent, and the high temperature tempering hardness can reach 62~63HRC.

The toughness of DC53 is more prominent in cold work die steel, and the tools made of DC53 rarely show cracks and cracks, which greatly improves the service life.

The residual stress after wire cutting is tempered at high temperature to reduce the residual stress. Therefore, cracks and deformation after online cutting of large molds and molds that require precision are suppressed.