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Imported SKD61 die steel is a kind of high-grade hot work alloy tool steel, which is the most widely used hot work alloy steel. Hitachi SKD61 die steel has good toughness and high temperature fatigue resistance, can withstand temperature fusion, is suitable for long-term work at high temperature, and has good cutting performance and polishing performance. Imported SKD61 is smelted by electric furnace and remelted by electroslag, the steel is purer and tougher, and it is suitable for making aluminum, zinc, copper alloy extrusion dies, die-casting dies and hot forging dies.
There are six or seven smelters in the domestic SKD61 furnace refining, and there are also private black spots generated, ** and the quality is very different, the purchase of materials needs to be cautious, domestic ** (25-45 yuan), the origin of the imported SKD61 is less than 50 yuan does not belong to the scope of genuine goods.
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SKD61 belongs to the Japanese standard hot work die steel, the implementation standard: JIS G4404-2006SKD61 is a medium alloy hot work die steel containing silicon, chromium, molybdenum, vanadium after quenching, tempering treatment to obtain a fine structure, moderate grain martensite structure, basically distributed with fine carbides, with good comprehensive mechanical properties, and good hardening performance, more suitable for manufacturing large size, complex shape of the mold. It is suitable for hot work, aluminum, magnesium, zinc, copper alloy die-casting molds, grooving knives, scissors and hot forging actions, plastic molds, hot work reamers, rolling knives, general hot work forging dies, hot bolt molds, hot tools in the hot room, etc.
The chemical composition of SKD61 is shown in the figure below
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SKD11 is produced by both Hitachi and Datong Steel Mills, with Hitachi trading as SLD Die Steel (the latest improved version being called SLD-MAGIC) and Datong Steel Mills trading as DC11 Die Steel. Both have factories in mainland China. SKD11 imported from the country of origin has the characteristics of high wear resistance, high toughness and good versatility, and belongs to high-carbon and high-chromium alloy tool steel and vacuum degassing refined steel, with pure steel, good hardenability and good hardenability with small quenching deformation.
The steel is spheroidized and annealed and softened, with good machinability, and the carbide particles are fine and uniform, because the chemical elements molybdenum and vanadium are added without worrying about quenching and cracking.
There is a big difference between domestic and imported SKD11 both ** and quality, less than 45 yuan and claiming to be imported materials, not credible, SKD11 die steel is not a patented steel grade, but all large and small factories with smelting qualifications can open furnace production, domestic SKD11 from 18-40 yuan have, so buy materials to be cautious.
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SKD11 die steel is about 30 yuan kg
SKD11 belongs to the Japanese standard high carbon and high chromium type cold compound die steel, the implementation standard: JIS G4404-2006
SKD11 has good toughness and high temperature fatigue resistance, can withstand temperature fusion, is suitable for long-term work at high temperatures, has good cutting performance and polishing performance, is suitable for punching dies and imprinting dies, various scissors, inlay blades, woodworking blades, threaded rolling dies and wear-resistant sliders, cold heading dies, thermosetting resin molding molds, advanced gauges and other deep drawing molding, cold extrusion dies.
The chemical composition of SKD11 is shown in the figure below
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SKD11 characteristics: It has good toughness and high temperature fatigue resistance, can withstand temperature fusion, is suitable for long-term work at high temperature, and has good cutting performance and polishing performance.
SKD11 is a high wear-resistant high chromium cold work die steel, which is a kind of high-carbon and high-chromium alloy tool steel, which has high hardness and abrasiveness after heat treatment, and has the characteristics of strong hardenability and good dimensional stability, which is suitable for making high-precision and long-life cold work molds and thermosetting plastic molds. Mainly used for turning, and should be made sharp knife edge, scissors, circular saws, metal stamping dies, forming rolls, general cold work molds cold or hot dressing dies, drum edges, screw lines, wire molds, milling cutters, punching dies, round drums, power transformer heart punching dies, cutting steel sheet rolling cutters, steel pipe forming rollers, special forming rollers, precision gauges, complex shapes of cold pressing tools, metallurgy, tin molds, plastic molds, screw heading dies, etc. Its hardness is hardness HRC56 58
SDK11 is a Japanese tool steel grade, produced by Hitachi and Daido Steel Mills, Hitachi SKD11 trade name SLD (the latest improved version is called SLD-Magic), and Daido Steel Mill trade name DC11. Both have factories in mainland China, which are the most well-known in the industry, and the highest in the industry. This grade is currently produced in China, and the steel quality is almost the same as that of Japanese steel, but it is very advantageous.
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SKD11 is a Japanese grade, and the composition is basically the same as that of domestic CR12MOV. You can think of both of them as one. It is mainly used in cold work molds.
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To put it simply, it is very similar to CR12MOV, but the stability and toughness are better.
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SKD62 die steel Rockwell hardness: annealed, 235 205HBSKD62 belongs to the Japanese standard air-cooled hardening hot work die steel, the executive standard: JIS G4404-2006
SKD62 has good hardenability, good thermal strength, oxidation resistance, high toughness and wear resistance at medium temperature, and has good cold and heat fatigue resistance, processability, heat treatment performance and polishing performance. It is suitable for the manufacture of aluminum, magnesium and zinc alloy die-casting dies for hot stamping work, as well as hot work reamers, rolling knives, grooving knives, scissors and hot forging punches, high-speed forging dies, aluminum-magnesium alloy hot forging dies, etc.
The chemical composition of SKD62 is shown in the following figure:
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Rockwell hardness cannot be measured without heat treatment! It can only be measured after heat treatment! Can heat treat 52-56HRC
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The hot-rolled spot hardness of the steel factory is about 22 degrees, and the highest degree can be 52-55 degrees (Gangxiang Metal Materials) when quenching and hardening
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The hardness of SKD62 die steel can reach below HRC53.
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SKD61 is the most widely used in aluminum and zinc die-casting mold materials, this steel contains tungsten high-temperature resistant high-grade alloy steel, suitable for hot work, aluminum, magnesium, zinc, copper alloy die-casting molds, grooving knives, scissors and hot forging actions, plastic molds, hot work reamers, rolling knives, general hot work forging dies, hot bolt molds, hot room tools, etc.
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1. Good strength and toughness at high temperature, good wear resistance, easy to cut; 2. SKD61 is a kind of hot die steel with good strength, toughness and heat resistance, in recent years, with the development of isotropic products, it has increasingly developed to high toughness, etc., which can make the mold have a longer life, more stable performance, and easy to process, and small heat treatment deformation.
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Introduction of SKD61 die steel.
SKD61 die steel is a kind of medium alloy hot work die steel containing silicon, chromium, molybdenum and vanadium after quenching and tempering treatment to obtain a martensitic structure with fine structure and moderate grain, basically distributed with fine carbides, with good comprehensive mechanical properties, and good hardening performance, which is more suitable for manufacturing molds with large size and complex shape.
SKD61 Mold Steel Chemical Composition.
Grade: Carbon, Silicon, Si, Manganese, Mn, Chromium, Cr, Molybdenum, Mo, Vanadium, V
Hitachi SKD61
SKD61 die steel properties.
Vacuum degassing and refining process steel is pure.
Spheroidization annealing and softening treatment, good cutting performance.
The mold life is longer, the performance is more stable, and it is easy to process, and the heat treatment distortion is small.
Strengthened element vanadium, molybdenum special addition, extremely excellent wear resistance.
It has good strength and toughness at high temperature, good wear resistance, and easy cutting.
SKD61 die steel uses.
SKD61 is the most widely used in aluminum and zinc die-casting mold materials, this steel contains tungsten high-temperature resistant high-grade alloy steel, suitable for hot work, aluminum, magnesium, zinc, copper alloy die-casting molds, grooving knives, scissors and hot forging actions, plastic molds, hot work reamers, rolling knives, general hot work forging dies, hot bolt molds, hot room tools, etc.
In addition to this, there are also the following uses:
1. Suitable for all kinds of scissors, inlay blades, woodworking blades.
2. Thread rolling die and wear-resistant slider.
3. Cold heading mold, thermosetting resin molding mold.
4. Deep drawing forming mold, cold extrusion mold.
5. Thin plates with a thickness of no more than 2mm, high-efficiency blanking dies, punching dies and embossing dies.
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Quenching: first stage preheating: 500 550
The second stage of warm-up: 750 800
Blowing cooling or high-pressure gas cooling, etc., 100 150 into the tempering furnace.
Tempering: Preheating: 300 350
Tempering heating: 550 680
The air is cooled to room temperature and tempered three times. The quenching temperature is 1020 1050 degrees, the hardness is 56 58HRC, the heat treatment deformation is small, and the surface can be nitrided and treated, so that the processed products have better wear resistance.
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Main ingredient: %
C carbon Si silicon.
MN manganese cr chromium.
Molybdenum, NiNi, Nickel, V, vanadium.
Supply condition and hardness: annealed, hardness 229HBS.
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SKD61 Mold Steel - What is SKD61 made of?
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SKD61 Mold Steel Chemical Composition.
Main Ingredients: % C, Carbon, Si, Silicon, Mn, Manganese, Cr, Chromium, Molybdenum, Ni, Nickel-V, Vanadium.
The weight is the radius * radius * length unit (mm).
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The weight of the steel plate is Thickness * Width * Length * Unit (mm).
The weight of a round bar is the radius*radius*length in units (mm).