What is the material of YCS3 mold steel rod

YCS3 belongs to the oil quenching carbon tool steel imported from Japan, high-strength and high-carbon cold work die steel, the steel is to add a little GR (chromium) element to the composition of SK3 steel, in order to improve the fragile properties of the usual carbon tool steel, and to prolong the life of the tool, YCS3 tool steel is used in stamping die fixtures and tools, and is also commonly used in the production of cutting tools and measuring tools. Compared with alloy tool steel, it has good machinability, low cost and a wide range of use, so it is used in large quantities in tool production. Carbon tool steels are divided into carbon cutting tool steel, carbon die steel and carbon measuring tool steel.

Carbon cutting tool steel refers to the carbon tool steel used to make cutting tools, carbon die steel refers to the carbon tool steel used to make cold and hot processing molds, and carbon measuring tool steel refers to the carbon tool steel used to make measuring tools. Hitachi YCS3 carbon tool steel is generally delivered in annealed condition, and can also be delivered in non-annealed state according to the requirements of the buyer.

YCS3 is for:

It is suitable for stamping dies, metal mold backing plates, paper cutters and fixtures, gauges, razors, files, cutting tools.

It is suitable for making all kinds of mold wear plates.

It is suitable for plastic mold steel, punching die, stamping die and bending die.

Sliders, etc., are commonly used to make hammer forging plates.

Ejector pins, guide posts, guide bushings.

Materials used for mechanical parts.

Steel rod is just a material type, generally there are round bar material, sheet material and square material, and it has nothing to do with the material itself.

YCS3 chemical composition ( ).

mn ≤si ≤

crmovw

p ≤s ≤

Use of COYCS3:

Tool industry: scrapers, hobbing cutters, milling cutters, drills, etc.

Forging industry: forging molds.

Screw industry: hexagonal and other head forming dies, taps, punches.

Annealing: the temperature is 800 880, cooled to about 600 in a 10 20 hr furnace, and the hardness is below HB269;

Stress relief: temperature 650 750, cooling in the furnace.

Quenching: Preheat 1: Temperature 550 600, hold every 25mm for 30 minutes.

Preheat 2: Temperature 850 900, hold 20 for 30 seconds per 1mm.

Preheating 3: temperature 1050 1100, 20 30 seconds per 1mm, suitable for large and complex workpieces.

Ostian ferrite: temperature 1170 1220, hold 10-15 sec per 1 mm.

Quenching medium: oil, hot bath, air or gas;

Tempering: temperature 540 570, keep every 25mm for more than 60 minutes, tempering times more than 3 times, hardness HRC66 or more.

Features of Hitachi Metals YCS3:

1.Vacuum degassing refined steel with stable quality.

2.Good hardenability, oil cold quenching and quenching, less cracking and deformation.

3.The toughness and abrasion resistance are good, and the tool is durable.

4.Mn and CR are added to improve hardenability.

Uses of Hitachi Metals YCS3:

1.Gauges, razors, files, cutting tools.

2.Stamping dies, stamping dies, bending dies.

3.Ejector pins, guide posts, guide bushings.

4.Materials used for mechanical parts.

Plastic mold steel used in general use.

The steel for plastic molds suitable for cold extrusion is mostly made of industrial pure iron. CR steel can also be used. In order to obtain a high plasticity, it is best to use steel with a low silicon content.

For deep low molds, the whole pressing can be done in several processes, and between the pressing processes, the low molds should be completely annealed to restore plasticity. Industrial pure iron forging should be carried out in the range of 1000 1250 or 680 850, avoiding intermediate temperatures to prevent "recrystallization brittleness". The mold is carburized at 900 930, quenched since 780 800, and tempered at 150 250, with a surface hardness of 58HRC or more.

Chemical composition (mass fraction) of industrial pure iron:

dt1 ≤dt2 ≤

For small and medium-sized molds that are not very complex, they can be made of T7A, T10A, 9Mn2V, CRWMN, 9CRWMN, CR2, YK30, GOA, YCS3, SGT, DF-2 DF-3, ARNE, and other tool steels. These steels are quenched and tempered. Corresponding process measures should be taken during heat treatment to reduce quenching deformation.

This type of steel has high wear resistance. The hardness of use is generally 45 to 55HRC. For large plastic molds, 4Cr5MOSIV or air-cooled micro-deformed steel can be used.

When high wear resistance is required, CR12MOV, SKD11, etc. can be used.

W403 is a hot work die steel imported from Austria, the full name is W403 VMR;

W403 is an electroslag remelting die steel, which is suitable for aluminum alloy die-casting molds, tools and mandrels, die forging hammer forging dies, press forging dies, high-speed precision forging dies and plastic compression dies, etc.; It is also used as structural parts with a heat resistance of 400 500 working temperature such as aircraft and rockets.

W403 die steel is a material with high heat resistance, excellent toughness and ductility in all directions, as well as high thermal fatigue resistance and wear resistance.

Y4 is equivalent to the domestic 4Cr3Mo2MnvNBB die steel, which is a mold steel designed for copper alloy die-casting molds, and a new type of hot die-casting mold steel designed in combination with China's mineral resources, which is close to 3Cr3Mo steel, but adds trace elements Nb and B. Compared with Y10 steel, the CR and Si content in Y4 steel decreases, so the carbide inhomogeneity decreases, and at the same time, B is used to improve the hardenability and high-temperature strength that are reduced due to the reduction of CR and Si content. The addition of trace amounts of Nb and Nb carbides is insoluble in austenite, and the addition of Nb can also improve the stability of M6C and MC carbides, so it can refine the grains, reduce the sensitivity to overheating, and improve the thermal strength and stability.

Y4 steel is significantly better than 3Cr2W8V steel in terms of mechanical properties, especially in terms of cold and hot fatigue and crack propagation rate, and is an ideal copper alloy die-casting mold material, and the service life of the mold has been greatly improved. In addition, Y4 steel has also achieved remarkable results in the application of hot extrusion die and hot forging die.

Y4 Chemical Composition:

c si mn cr mo v b nb p s≤ ≤

Critical points AC1 789, AC3 910, MS 263.

Y4 Steel Forging Process Specification.

Item Heating temperature Initial forging temperature Final forging temperature Cooling method Ingot 1150 1200 1100 1150 850 900 Slow cooling billet 1130 1160 1080 1120 850 900 Slow cooling preparation heat treatment Isothermal annealing: heating temperature is 840 860, heat preservation 2 4h; The isothermal temperature is 680, the heat preservation is 4 6h, and the furnace is cooled to 550 and the furnace is air-cooled.

Quenching and tempering The quenching temperature is 1050 1100, oil cooling, and the hardness is 58 59hrc. The tempering temperature is 600 630, the tempering time is 2h, the tempering is 2 times, and the hardness is 44 52hrc.

Y4 is originally a domestic steel, relatively ordinary, Y is the pinyin prefix of the word "press" ya of die-casting, and Y4 represents die-casting mold steel No. 4.

Y4 die steel in China's GB standard grade code is: 4Cr3Mo2mnvNib, the steel has high thermal strength and thermal stability, and has good toughness, thermal conductivity and process performance, good forging performance. The steel is designed for copper alloy die casting molds.

The Y4 mold is similar to H13, but the performance is much worse.

H13 die steel is die-casting mold steel, the implementation standard GB T1299-2000;China Grade: 4CR5MOSIV1; H13 die steel is a steel grade formed by adding alloying elements on the basis of carbon steel. Fushun H13 die steel is usually used for die-casting molds for aluminum castings, hot extrusion dies, tools, mandrels, and press forging dies for piercing; Plastic film, etc., is also widely used in aluminum, copper and its alloy die-casting molds, is the most widely used die-casting mold steel in the world.

H13 (T20813) die steel is a hot work alloy tool steel.

Grade: H13 T20813

Standard: ASTM A681-08

Chemical Composition: Carbon C:

Manganese mn:

Phosphorus p: sulfur s:

Silicon Si:Chromium Cr:

Vanadium V: Tungsten W: Molybdenum Mo:

Introduction of H13 die steel.

H13 belongs to hot work die steel, which is formed by adding alloying elements to the American Fincola die steel on the basis of carbon steel, and is the most widely used and representative hot work die steel grade. Factory hardness: Brinell HBW10 3000 (i.e. 235HB).

Mechanical properties of H13 die steel.

Hardness: annealing hardness, 245 205HB, quenching hardness, 50HRC.

Main characteristics of H13 die steel.

1) High hardenability and toughness;

2) Excellent thermal cracking resistance, can be used for water cooling in working places;

3) The wear resistance is medium, and the carburizing or nitriding process can be used to improve its surface hardness, but the thermal cracking resistance should be slightly reduced;

4) Because of its low carbon content, the secondary hardening ability of the material in tempering is poor;

5) At higher temperatures, H13 has the ability to resist softening, but its hardness decreases rapidly when the operating temperature is higher than 540 (1000) (i.e., the operating temperature is 540);

6) The deformation of heat treatment is small;

7) Medium or high machinability;

8) Medium resistance to decarburization.

H13 die steel use.

The use is basically the same as that of 9CRWMN die steel, but because of its higher vanadium content, the performance of medium temperature (600 degrees) is better than that of CR5MOSIV steel, which is a representative steel grade with a wide range of uses in hot work die steel.

H13 die steel is used to manufacture forging dies with large impact loads, hot extrusion dies, and precision forging dies; Aluminum, copper and its alloys die-casting molds. Even more notably, it can also be used to make important components in the aviation industry.

H13 Mold Steel Chemical Composition.

Grade: C simncrmovps

h13 ≤

Performance requirements 1Strength properties.

1) Hardness Hardness is the main technical index of die steel, and the mold must have a high enough hardness if it wants to keep its shape and size unchanged under the action of high stress. The general hardness of cold work die steel is maintained at about HRC60 at room temperature, and the hot work die steel is generally required to be kept in the range of HRC4055 according to its working conditions. For the same steel grade, within a certain range of hardness values, the hardness is proportional to the deformation resistance; However, there may be obvious differences in plastic deformation resistance between steel grades with the same hardness value but different compositions and structures.

2) Red hardness Hot work molds that work at high temperatures are required to maintain the stability of their structure and properties, so as to maintain a high enough hardness, and this performance is called red hardness. Carbon tool steels and low-alloy tool steels can usually maintain this performance in the temperature range of 180250, and chromium-molybdenum hot work die steels generally maintain this performance in the temperature range of 550600. The redness hardness of steel mainly depends on the chemical composition of the steel and the heat treatment process.

3) Compressive yield strength and compressive bending strength The mold is often subjected to high pressure and bending during use, so it is required that the mold material should have a certain compressive strength and flexural strength. In many cases, the conditions under which the compressive and flexural tests are carried out are close to the actual working conditions of the mold. Mould steel.

NOGA die steel is a cold work die steel for Japan's high-frequency steel industry.

NOGA Japan high-frequency cold-work die steel.

Japan High Frequency (Koshuha) Noga Product Features 1Improve the structure of steel:

Refine the structure of the steel and reduce impurities.

2.Excellent fatigue resistance and toughness:

Reduce the generation of carbides, improve fatigue resistance and toughness to a certain extent; Greatly improve the life of the mold.

3.Excellent solderability:

Reduce cracking problems while reducing weld cracks; Improved machinability after welding4The amount of heat treatment deformation is small.

The amount of deformation that occurs during heat treatment is minimized.