Brief introduction of the properties and uses of t

Properties and applications of several measuring and cutting tool steels

9si cr

properties: commonly used low alloy tool steels have high hardenability, hardenability and tempering stability. It is suitable for step quenching and austempering, with small heat treatment deformation

usage: it is used to manufacture cutting tools with complex shape, small deformation, high wear resistance and low speed cutting, such as drill bits, thread tools, dies, taps, reamers, thread rolling plates, thread rolling wheels, gear milling cutters, machine dies, printing dies and other molds, as well as cold rolls, correction rolls and slender parts

production varieties: hot rolled steel, forged steel, cold drawn steel, hot rolled steel plate, cold rolled steel wire, silver bright steel wire

8mnsi

performance: it is made by increasing the content of silicon and manganese on the basis of carbon tool steel T8. The hardenability of steel is improved by increasing the content of silicon and manganese

usage: it is used to make wood tools, such as chisels, saw blades and other knives, as well as disc saw blades, insert bodies, etc

production varieties: hot rolled products, forged products, cold drawn products

cro6

properties: low alloy measuring and cutting tool steel containing a small amount of chromium can obtain higher hardness and wear resistance after heat treatment. Due to the high carbon content, it is easy to form carbide, which affects its performance, especially for tools with large cross-section, especially for tools with thin blades and large cross-section

purpose: it is used to manufacture knives with low load operation and sharp edges, such as surgical knives, shaving blades, razors, engravers, files, scrapers, wool scissors and other manual and motor-driven knives

production varieties: hot rolled steel, forged steel, cold drawn steel, hot rolled steel plate, cold drawn steel wire, silver bright steel wire

cr2

performance: the chromium containing measuring tool knife is up to several 10 tons, such as ordinary steel. The experimental force of the largest electronic universal testing machine in China is 600kN, and the grade 0.5 machine tool steel is formed by adding a certain amount of chromium on the basis of carbon tool steel T10. Its chemical composition is similar to that of ball bearing steel GCrl5. Due to chromium, the hardenability, hardness and wear resistance of the steel are higher than those of carbon tool steel T10, and the size changes little during heat treatment, quenching and tempering

purpose: it is used to manufacture measuring tools, with a total output value of 2billion yuan by 2020, such as sample plates, gauges, block gauges, ring gauges, screw plug gauges, sample columns, chucks, sample sleeves, etc. it can also be used to manufacture cold working dies such as wire drawing dies and cold heading dies, as well as cutting tools with low speed, small amount of cutting and most of the accidents caused are disastrous and the processing materials are not very hard, such as turning tools, inserting tools, reamers, cam pins, eccentric wheels, cold rolls, etc

production varieties: hot rolled steel, forged steel, cold drawn steel, hot rolled steel, drawn steel wire

9cr2

performance: cutting tool steel with chromium content, because it contains a certain amount of chromium, improves the hardenability of the steel, and can obtain higher hardness even when quenched in oil. After proper heat treatment, it has good wear resistance and relatively uniform carbide distribution

purpose: used for manufacturing cold tool dies, stamping dies, punches and dies, stamping dies, etheric woodworking tools, etc., and also used for manufacturing cold rolls and calendering rolls, etc

production varieties: hot rolled materials, forgings, cold drawn materials, hot rolled steel plates, cold rolled steel wires. According to the requirements of the demander, the requirements of medium fixture materials can be supplied: small size modules

w

performance: measuring and cutting tool steel containing 0.80% - 1.20MM% (mass fraction) has higher hardness and wear resistance after quenching than carbon steel tool steel, lower overheat sensitivity than carbon tool steel, smaller heat treatment deformation, less cracks during water quenching, and better tempering stability. Due to its low hardenability, it is usually only used to manufacture tools with small cross-section. Generally, parts with a thickness of less than 10mm~15mm can obtain uniform high hardness, with a hardness of hrc64~66

purpose: it is used to manufacture tools with small cross-section, such as small fried dough twist drills, and taper, die and manual reamers with low cutting speed and low working temperature

production varieties: hot rolled steel, forged steel, cold drawn steel, cold drawn steel wire, silver bright steel wire