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This section provides an overview for carbon tool steel as well as their applications and principles. Also, please take a look at the list of 4 carbon tool steel manufacturers and their company rankings.
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Carbon tool steel is a type of steel containing carbon and a small amount of alloying elements with properties such as high hardness, high strength, high wear resistance, and good machinability.
Compared to low-alloy tool steels and high-speed steels, carbon tool steels are easier to harden by machining and heat treatment, and are therefore used in the manufacture of cutlery, dies, tools, etc. Compared to alloy tool steels, carbon tool steels are relatively low cost and suitable for many applications.
Due to its high sharpness and durability, it is used in the manufacture of knives, scissors, and other cutting tools.
Due to its high hardness, carbon tool steel is used in metal processing such as cutting, drilling, and press working.
Sometimes used for drill bit tips. A drill bit is a tool used to drill holes in materials such as metal, wood, and plastic.
Sometimes used to make tool parts, such as screwdrivers, wrenches, hammers, etc.
Used in the manufacture of parts such as nails and bolts.
Used in metal working, such as cutting, drilling, and stamping.
Carbon tool steel contains carbon as a major alloying element. Carbon content is 0.55% or higher, which is almost the same as that of high carbon steel (carbon content of 0.6% or higher). The higher carbon content results in higher hardness and wear resistance, but may reduce machinability.
Carbon tool steels have low impurity content and high purity. As a result, it has excellent cutting and machinability, and is suitable for manufacturing precision parts such as knives and tools.
Because of its high hardness, carbon tool steel can be hardened by quench hardening to improve wear and corrosion resistance. Quenching is the process of heating at high temperature followed by rapid cooling. It is widely used in the manufacture of parts that require high cutting and wear resistance, such as blades, tools, and molds.
The reason why carbon tool steel is brittle and impact-sensitive is its crystalline structure. Since hardness is obtained by quench hardening, the post-quenching microstructure is very hard and brittle. In addition, since the microstructure produced by quenching is aligned in one direction, strong bonding forces act in the direction of alignment and the material tends to be brittle in all directions except for the direction of alignment.
Furthermore, carbon tool steel contains a high amount of carbon among its alloying elements, and numerous carbon compounds are formed in the metallurgical structure. These carbon compounds strengthen the bonding force within the crystal structure, which weakens the bonding force between crystals, resulting in brittleness.
Carbon tool steel is not suitable for use in high-temperature environments because of two main factors.
One is that carbon tool steel is susceptible to oxidation at high temperatures, which may degrade its mechanical properties due to surface degradation.
The high content of carbon among the alloying elements in carbon tool steel makes it susceptible to oxidation at high temperatures. Therefore, oxides and scales may be formed on the surface of carbon tool steel, and the surface texture and roughness may change. The formation of oxides and scale may also degrade the surface and reduce mechanical properties.
Scale is a film of oxides that forms on the metal surface or a film of impurities that adhere to the metal surface.
One is that "carbon tool steel" may experience progressive grain growth at high temperatures, resulting in reduced strength and hardness.
Carbon tool steel becomes hard by quench hardening, but its strength and hardness may decrease as a result of the growth of crystal grains due to use at high temperatures.
Grain growth at high temperatures weakens the strong bonds within the metallurgical structure, causing grain boundary bending and cavities at grain boundaries, which in turn leads to reduced strength and hardness. Decreased strength and hardness can result in reduced mechanical properties and fracture of metal parts when used at elevated temperatures.
*Including some distributors, etc.
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Fushun Special Steel Co. Ltd. is an ISO 9001-certified manufacturer of steel products and alloy materials founded in 1937 and based in Fushun, Liaoning, China. The company produces steel products for structural components, tools, and sensitive components for medical devices. It also produces nickel-based alloys for aerospace components and parts requiring resistance to extreme temperatures. The company offers manufacturing services for steel and alloy materials, including forging using hydraulic or precision machinery, melting with arc or vacuum furnaces, and heat treatment. It primarily serves clients in the aerospace, energy, and petrochemical markets.
TOKUSHU KINZOKU EXCEL Co. Ltd. is an ISO 9001-certified manufacturer of precision metal materials that was established in 1940 in Tokyo, Japan. The company produces various performance alloys designed for flexibility, durability, or magnetism. These include electrical heating alloys, soft magnetic iron steel, and shape memory alloys. The company also offers contract manufacturing for custom or industry-specific material orders. It primarily serves clients in the aerospace, digital consumer products, and semiconductor manufacturing sectors.
GNEE Multinational Trade Co, Ltd., established in 2008 and headquartered in Anyang, China, is a distributor of specialty steel products. The company's products include welded, stainless, and alloy steel pipes, integrating steel plates, coils, and steel design and processing. Its services include metal cutting, heat treatment, and custom sawing, with testing capabilities such as hydrostatic pressure, eddy current, and digital radiography. Its products adhere to API, ASTM, and AISI standards, serving nuclear power, high-pressure boilers, and oil and gas production sectors. The company also provides steel services such as hot-dip galvanizing and anti-corrosion treatment.
Number of Employees
Newly Established Company
Company with a History
*Including some distributors, etc.
| Country | Number of Companies | Share (%) |
|---|---|---|
|
China
|
3 | 75.0% |
|
Japan
|
1 | 25.0% |
6 products found
6 products
Misuzu Scissors Co., Ltd.
30+ people viewing
Last viewed: 18 hours ago
■Features - Composite material of the best knife steel (Yasugi Steel White Paper No. 1) and soft iron. ・A high-quality product for professional us...
Misuzu Scissors Co., Ltd.
30+ people viewing
Last viewed: 18 hours ago
■Features ・Recommended product of Misuzu scissors that we completed as a result of many years of research. -Uses the best knife steel (SK5) for th...
Moritec Steel Co., Ltd.
40+ people viewing
Last viewed: 18 hours ago
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■Summary Moritec Steel proposes the most suitable metal materials by utilizing the experience and knowledge we have cultivated over the years as a ...
Misuzu Scissors Co., Ltd.
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Last viewed: 11 hours ago
■Features - A completely new design of gripping scissors that emphasizes the ease of use and sharpness of conventional scissors. ・Uses knife steel...
Misuzu Scissors Co., Ltd.
40+ people viewing
Last viewed: 5 hours ago
■Features ・Uses high-grade knife steel (SK5). ・Standard type for home use, finished with the latest equipment and technology. - Quality and price...
Misuzu Scissors Co., Ltd.
40+ people viewing
Last viewed: 18 hours ago
■Features Uses high-grade knife steel (SK5). Standard type for home use, finished with the latest equipment and technology.
