What material is SKD11 mold steel? What is the composition of SKD11 mold steel?

SKD11 Japanese tool steel grade 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 small quenching deformation. The steel has been spheroidized and annealed and softened, with good machinability, fine and uniform carbide particles, and there is no need to worry about quenching cracking to strengthen the elements molybdenum and vanadium.

Corresponding grades in China and other countries: China GB standard grade CR12MOV, China Taiwan CNS

Standard grade SKD11, German DLN standard material number, German DIN standard grade X165CRM0V12, this JIS standard grade SKD11, South Korean KS

Standard grade STD11, Italian UN1 standard grade X165CRM0W12KU, Swedish SS standard grade 2310, Spanish UNE

Standard grade X160CRM0V12, American AISI SAE standard grade D3, Russian ROCT standard grade X12M.

SKD11 is the most widely used in aluminum, zinc die-casting mold materials, 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.

Chemical Composition: C Si Mn Cr Mov

SKD11 die steel is a general purpose cold work die steel with high wear resistance and high toughness.

Main chemical components. , below, s: below.

For details, please go to "Shenzhen Henglong Mould Steel" to understand.

Cold work alloy steel imported from Japan, the main chemical composition. , below, s: below.

Junrui die steel provided by Kobayashi.

There are more details on the encyclopedia.

To sum up the BAI

Material requirements: high hardness, high wear resistance, certain toughness, use at room temperature.

If you feel that the brittleness is still large, DC53 can be used to improve the toughness on the basis of SKD11. If you don't consider the cost, you can also choose LD or directly use high-speed steel.

SKD61 and H13 in the question are used in a medium temperature environment; CR12MOV is worse than SKD11 and belongs to the same kind of material; 40cr belongs to quenched and tempered steel, and the hardness and wear resistance are not very good; Manganese steel is mainly used to make workpieces with elastic requirements.

SKD11 is a Japanese brand, corresponding to China's CR12MOV, the difference is very small, it is difficult to distinguish. The difference can only be made by careful analysis of the chemical composition. The molybdenum content was different.

A: Obviously. SKD11 Chemical Composition:

C carbon Si silicon

mn, manganese, p, phosphorus, s, sulfur

Cr chromium Mo molybdenum.

Ni nickel v vanadium cu copper

Cr12MOV Chemical Composition: Carbon C

Silicon Si: Manganese Mn: Sulfur S

Phospho-P chromium cr:

Nickel Ni: Copper Cu: Vanadium V

Molybdenum mo:

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 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 is produced by Hitachi and Datong Steel Mills, Hitachi SKD11 is called SLD (the latest improved version is called SLD-Magic), and Datong Steel Mills is known as DC11.

SKD11 die steel is a Japanese JIS standard die steel, which is equivalent to China's national standard GR12MOV model steel.

SKD11 steel is a high-carbon, high-chromium leaite steel. It has high hardenability and wear resistance, small size change during quenching, and is a very widely used cold work steel, which can be used to manufacture punching dies with complex shapes, cold shear knives, drawing dies, wire drawing dies, thread rolling plates, cold extrusion dies, measuring tools, etc.

At present, there is no exact same material in China, and there is a CR12MOV with GB standard similar to this steel, but there is still a gap between the performance and SKD11.

There are many users who use CR12MOV instead of SKD11 and find that the performance is far from the same, which is often the use of non-standard CR12MOV or worse materials.

Said to be equivalent to domestic.

cr12mov

Not entirely true, because.

The alloy composition of SKD11 is higher than that of CR12MOV. The performance is also a little better than the CR12MOV. It belongs to the Japanese code name.

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 is a high-quality cold work tool steel, also known as D2 steel.

It is a high-carbon and high-chromium steel developed by Daido Steel Company of Japan, and its chemical composition includes 13% to 15% chromium, carbon, silicon, molybdenum and the following elements such as manganese, phosphorus, and sulfur. Compared with other tool steel materials, SKD11 has the advantages of high hardness, high wear resistance, high corrosion resistance and high stability.

SKD11 is widely used in molds, cutting tools, stamping dies, extrusion dies, cold-rolled bars, scrapers, scrapers, grinding wheels and other Lingxiang rubber fiber domains. In the mold manufacturing industry, SKD11 is used to make plastic molds, die-casting molds, stamping molds, etc., because it has excellent wear resistance, high hardness and tensile strength, which can guarantee that the mold still has good performance after long-term use.

Nitriding treatment

After nitriding treatment of the mold or workpiece, a layer of hardened tissue with high hardness and certain corrosion resistance is formed on the surface. In 570 soft nitriding treatment: the surface hardness of the workpiece is about 950 hV. Usually the soft nitriding treatment is 2 hours, and the depth of the hardened layer can reach 10-20um.

Grinding the die blank or working in the low-temperature tempering state, grinding is easy to produce grinding cracking. In order to prevent cracks, a small grinding feed should be used for multiple grinding, supplemented by good water such as cold conditions.

Wire cutting molds with complex shapes or large sizes are usually cracked when they are finally processed in rows. In order to prevent cracking, it is recommended to use gas quenching and high-temperature tempering treatment to reduce heat treatment stress, or cavity pre-processing of the mold base.

SKD11 is a kind of high wear resistance toughness general cold work mold Ming steel, high carbon and high chromium alloy alloy trace steel and vacuum degassing refined steel, the steel quality is pure, with good hardenability, quenching deformation and good hardenability. The steel has been spheroidized, 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 to strengthen the elements.