What is the hardness of a piece of skd11 mold steel Thank you 15

Hardness: annealed, 255 207HB, indentation diameter;

Quenched, 60hrc

What does that friend mean when he comes back to asp30?

The hardness of the material is HB215, and the handling is HRC58-60

It is equivalent to the domestic CR12MOV, and the hardness HRC is 58-62 after heat treatment

This is the question that asks ... Whether it is treated or its own hardness.

Product name: ASP-30

Product brand: ASSAB

Origin: Sweden Sasab.

Features and scope of application:

ASP30 is a high-grade high-alloy high-speed steel containing high cobalt and high vanadium manufactured by powder metallurgy ASP process.

The steel grade is atomized, compacted and then hot-formed to the desired size by metal powder, and its uniform structure gives it a unique comprehensive property.

Good grinding properties.

Good dimensional stability of heat treatment.

Good toughness.

Good red hardness.

Good abrasion resistance.

The grinding performance of ASP30 is similar to that of conventional smelting high speed steel AISI M2 or tool steel AISI D2.

ASP-30 Main Uses:

ASP30 is a cobalt-containing high-speed steel. It is suitable for making multi-bladed tools, such as: twist drills, reamers, taps, milling cutters, broaches, hobbs and forming tools, etc.; Single-edged tools such as cutters, parting-off turning tools and forming tools.

In terms of performance, ASP30 is suitable for making multi-edged tools that require a certain degree of red hardness.

ASP30 is also suitable for making single-edged tools that are generally required.

ASP30 is also suitable as a cold work tool with strict requirements for wear resistance. For example: punching, forming, stamping dies, etc. This steel grade has excellent wear resistance and toughness, which is superior to other high-alloy cold work steels.

ASP30 chemical composition (%)

Carbon C: Manganese Mn:

Chromium Cr:Vanadium V:

Silicon Si:Molybdenum Mo:

Delivery Condition: The steel is delivered in annealed condition. By agreement between the two parties, it can also be delivered without annealing.

SKD11 is equivalent to domestic CR12MO1V1 steel, with a factory hardness of 255HB and a CR12 factory hardness of 269-217HB.

It can be used to manufacture various molds and tools with large cross-sections, complex shapes, and large impact loads. For example, punching dies with complex shapes, inserts on complex molds, steel plate deep drawing dies, wire drawing dies, threaded wire plates, cold extrusion dies, cold cutting scissors, circular saws, standard knives, measuring tools, etc.

SKD11 is a general cold work die steel with high wear resistance and toughness, high carbon and high chromium alloy tool steel and vacuum degassing refined steel, with pure steel quality, good hardenability and good hardenability with good hardenability and low quenching deformation. The steel is spheroidized and annealed and softened, with good machinability, fine and uniform carbide particles, and there is no need to worry about quenching cracking and special addition of molybdenum and vanadium.

SKD11 hardness is 210HB for factory annealing, and the hardness after heat treatment is 60-62HRC

The domestic one is called CR12MO1V1, and the United States is called D2, <>

SKD11 high-carbon and high-chromium alloy tool steel and vacuum degassed refined steel, or hobbing steel are pure, with good hardenability and good hardenability with small quenching deformation. SKD11 die steel is a Japanese tool steel grade, which is produced by Hitachi and Daido Steel Mills, Hitachi SKD11 is called SLD, and Datong Steel Mills is DC11. It is suitable for all kinds of scissors, inlay blades, woodworking blades, threaded rolling dies and wear-resistant slider cold heading dies, thermosetting resin molding molds, advanced gauges and other deep drawing and cold extrusion dies.

In the 525 nitriding treatment, the surface hardness of the workpiece is about 1250HV, while in the 570 soft nitriding treatment, the surface hardness of the workpiece is about 950HV, and the quenching temperature is 1010°C, and the air cooling. Tempering temperature 200, hardness 58 60hrc. It is the most widely used mold material for aluminum and zinc die-casting, and this steel contains high-temperature resistant high-grade alloy steel with tungsten composition.

In the 525 nitriding treatment, the surface hardness of the workpiece is about 1250HV, while in the 570 soft nitriding treatment, the surface hardness of the workpiece is about 950HV, and the quenching temperature is 1010°C, and the air cooling. Tempering temperature 200, hardness 58 60hrc.

In aluminum, zinc die-casting mold materials, the most widely used, this steel contains tungsten composition of 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 action, plastic molds, hot work reamers, rolling knives, general hot work forging dies, hot bolt molds, hot room tools, etc.

Typical Applications:

1. It is used to make plastic molds, scissors, circular saw knives, metal stamping molds, and forming rolls.

2. Make cold work or hot work trimming die, drum edge, filament, wire die, transformer core die, cutting steel sheet rolling knife, steel pipe forming roller, special forming cylinder, nail punching die, etc.

3. Efficient blanking die, punching die and embossing die of 6mm thin steel plate.

4. All kinds of scissors, inlay parts, and wire rolling molds.

5. Slide-resistant cold heading die, deep drawing forming die, cold extrusion die.

6. Thermosetting resin type, general plastic mold.

Production condition: 20 degrees to 22 degrees SKD11 can be 58 to 60 degrees after domestic heat treatment, SKD11 can be 58 to 60 degrees after imported heat treatment.

Annealed to approximately HB255 equivalent to HRC25-26°

HRC58-60° after heat treatment

After heat treatment, it can reach 60HRC

64HRC, the higher the hardness, the more martensite the better, the less residual austenite, the better, the hardness after normal heat treatment quenching is up to 60 62HRC, which can pass "ultra-low temperature cryogenic -180"Cold dispersion of tissue, reduce Paralympics, increase hardness by 1 2HRC, so 64HRC is the limit.

How tall do you want it to be? By TD treatment, CVD, and PVD treatment, the hardness of the surface can be close to that of diamond, which is equivalent to 75HRC or more.

SKD11 is generally heat treated by vacuum.

By increasing the quenching temperature to 1050-1080 and at the same time increasing the tempering temperature, its hardness can be increased to 65-66hrc

Shenyang Zhongjin Mould Steel.

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.

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

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.

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.

To put it simply, it is very similar to CR12MOV, but the stability and toughness are better.