Home > Knowledge > Content

Contact Us

Add: No.37 Huahu Ave.Huahu Street, Huangshi City Hubei

Tel: +86-714-6510168

Mob: +86-18272169977

Fax: +86-714-6519746

E-mail: info@hubeikaixin.com

Cold working die steel working conditions and performance requirements
Nov 08, 2017

Cold working die steel working conditions and performance requirements


Cold work die steel at work. As the processing of materials deformation resistance is relatively large, the working part of the mold to withstand great pressure, bending force, impact and friction. Therefore, the normal cause of cold die scrap is generally worn. There are also failures due to fracture, collapse and deformation of the ultra-poor and failure.


Cold work die steel and cutting tool steel compared. Have many things in common. Requirements of the mold has high hardness and wear resistance, high flexural strength and sufficient toughness to ensure the smooth progress of the stamping process, the difference is that the mold shape and process I plus complicated. And the friction area. Great possibility of wear. So hard to repair it. Therefore, the requirements of higher wear-resistant mold work withstand punching force. And because of complex shape prone to stress concentration, so require a higher toughness; mold size, complex shape. So require a higher hardenability, less deformation and cracking tendency. In short, cold-working die steel hardenability, wear resistance and toughness, and other requirements than the cutting tool steel higher. In the case of red hardness, however, lower or essentially no requirements (because of cold forming) are required, so that some types of steel suitable for cold working are also formed, for example, the development of highly wear-resistant, micro-deformable For mold steel and high toughness cold work die steel. The following combination of the relevant selection of steel further instructions.


Crl2

Performance: High-carbon, high-chromium type of austenitic steel, has good hardenability and good wear resistance. As the carbon content of steel up to 2.30%, so the steel becomes hard and brittle, so the impact toughness is poor, almost can not afford a large impact load, easy to brittle fracture, and easy to form uneven eutectic carbide.

Uses: Used to manufacture cold punches and punches that are less affected by impact loads and require high wear resistance, cold-cutting blades that cut hard and thin metal, drill sleeves, gauges, drawing dies, stamping dies, Silk plate, drawing die and screw rolling die.

Production varieties: hot-rolled materials, cold-drawn materials, forging, hot-rolled steel, cold-drawn steel wire.


Cr12Mo1V1

Performance: high-carbon, high-chromium type of martensitic steel, no special requirements when not as a must-drilling element. As the content of molybdenum and vanadium is higher than that of Cr12MoV, the microstructure and grain size of steel are further refined, and the hardenability, strength and toughness of steel are improved, so that the comprehensive performance of steel is better.

Uses: Used to manufacture large and complex cold dies requiring high abrasion resistance, such as cold cutting scissors, trimming dies, drawing dies, thread rolling dies, thread rolling dies, curling dies and dies and punches requiring high wear resistance .

Production varieties: hot-rolled materials, forgings, cold-drawn materials, hot-rolled steel, cold-drawn steel wire.


Cr12MoV

Performance: High-carbon, high-chromium type ledeburite steel, with good hardenability, the cross-sectional size of 400mm or less can be fully hardened, and has a high wear resistance, small volume changes during quenching. Its carbon content is much lower than that of Cr12 steel and molybdenum and vanadium are added. Therefore, the hot workability, impact toughness and carbide distribution of the steel have been significantly improved.

Uses: Used to make cold work die with larger cross section, complicated shape, high wear resistance and large impact load, such as cold cutting scissors, trimming die, curling die, gauge, drawing die, thread rolling plate, thread Roll mold, punching die complex shape, steel deep drawing die, and require high wear-resistant die and punch and so on.

Production varieties: hot-rolled materials, forgings, cold-drawn materials, hot-rolled steel, cold-drawn steel wire.


Cr5Mo1V

Performance: medium alloy content, due to containing molybdenum and vanadium, so the steel hardenability good carbide distribution, with a certain impact toughness and good wear resistance.

Uses: For the manufacture of stereotypes die, drill sleeve, die, punch, trimming die, thread rolling mold, thread rolling plate and gauges.

Production varieties: hot-rolled materials, forgings, cold-drawn materials, hot-rolled steel, cold-drawn steel wire.


9Mn2V

Performance: Comprehensive mechanical properties than carbon tool I steel, with high hardness and wear resistance, good hardenability, less deformation when quenching. As the steel contains a certain amount of vanadium, grain refinement, reducing overheating sensitivity. Carbide inhomogeneity is better than CrWMn steel.

Uses: used to make all kinds of precision measuring tools, samples, and the general requirements of the smaller die, cold die, carving die, die, scissors, tap, die and reamer.

Production varieties: hot-rolled materials, forgings, cold-drawn materials, hot-rolled steel, cold-drawn steel wire.

According to the demand side can supply small and medium size module.


CrWMn

Performance: high hardenability, due to the addition of 1.20 %% 26mdash; 1.60% (mass fraction) of tungsten, the formation of carbide, so after quenching and tempering at a certain hardness and wear resistance. Tungsten helps to maintain fine crystallites, giving the steel better toughness. The steel is more susceptible to the formation of reticular carbon, and the risk of flaking of the tool edge is at stake.

Uses: Use a more extensive cold-work die steel. Used in the manufacture of measuring tools, such as die, block rules, sample and sample sets, as well as complex shapes such as high-precision die.

Production varieties: hot-rolled material, forging, cold-drawn material, cold-drawn steel wire, silver bright wire, hot-rolled steel, cold-rolled steel.


9CrWMn

Performance: Low-alloy cold-work die steel, with a certain degree of hardenability and wear resistance, quenching less deformation, carbide distribution and small particles.

Uses: Used to make sections not large, and the more complex shape of the cold die, as well as gauges, templates and other measuring tools.

Production varieties: hot-rolled material, forging, cold-drawn material, cold-drawn steel, cold-rolled steel.


Cr4W2MoV

Performance: The new medium-alloy cold-work die steel, the performance is more stable, and high-alloy cold work die steel Crl2, Crl2MoV compared with the use of mold life increased significantly. The steel eutectic carbide particles are small, evenly distributed, with high hardenability and hardenability, and better wear resistance and dimensional stability. However, the hot working temperature range of steel is narrower and the deformation resistance is larger.

Uses: used to make all kinds of die, cold heading die, blanking die, drawing die, cold extrusion die and Roll plate.

Production varieties: hot-rolled material, forging material.

According to the demand side can supply small size module.


6Cr4W3Mo2VNb

Performance: high toughness cold work die steel, its chemical composition close to the high-speed tool steel matrix composition, is a kind of base steel. Therefore, it has the high hardness and high strength of high-speed tool steel. Because the steel does not have excess carbides, it has high toughness and fatigue strength. The steel contains 0.20 %% 26mdash; 0.35% (mass fraction) of niobium, the grain refinement, and improve the grain refining temperature, thereby increasing the toughness of steel and improve its process performance.

Uses: Used in the manufacture of cold extrusion die, cold heading die, screw punch, die, drawing die and rolling plate.

Production varieties: hot-rolled material, forging material.

According to the demand side can supply part of the flat steel or other bars.


6W6Mo5Cr4V

Performance: Low-carbon high-speed tool steel type of cold-work die steel, and its good hardenability and high-speed tool steel with similar high hardness, high wear resistance, high strength and other comprehensive performance, but also has high toughness than high-speed tool steel characteristic. Cold extrusion dies made from this steel have a longer life. Due to the higher molybdenum content in the steel, the hot working temperature range is slightly narrower and the deformation resistance is greater. This steel is easy to decarburization.

Uses: Used to make cold extrusion die and punch up and down.

Production varieties: hot-rolled material, forging material.


Hubei Kaixin Supply Chain Management Co., Ltd.

TEL :+8618272169977 ; 0714-6510168

FAX:0714-6519746

Email:info@hubeikaixin.com

Add:No.37 Huahu Ave Huahu Street.Huangshi City Hubei

Code:435000

web:www.kxdiesteel.com