High-speed steel
Introduction
It is a high-speed steel with high cobalt toughness. It is mainly used for high-toughness precision wear-resistant hardware cold stamping dies. It can also be used for cooling in cutting tools and knives. Steel has high hardness, can reach up to 100,000 square meters, has good thermal hardness, has high hardness at high temperatures, and is easy to grind. Cutting tools made of this steel can cut iron-based high-temperature alloys, cast high-temperature alloys, titanium alloys and ultra-high-strength steels, etc., but the toughness is slightly poorer, and the lower limit should be used for quenching temperatures. Due to its good grindability, it can be used to manufacture various high-precision complex tools.
The mass fraction of vanadium in the super-hard cobalt high-speed tool steel of the American brand steel is not high, but the mass fraction of cobalt is high. Cobalt can promote more carbides to be dissolved in the matrix during quenching and heating, using high Matrix hardness improves wear resistance. The steel has good hardness, hot hardness, wear resistance and grindability. The heat treatment hardness can reach ~, but special heat treatment methods are also adopted to obtain hardness ~, which can improve the cutting performance, especially interrupted cutting, and increase the impact toughness. The steel can be made into various cutting tools, which is very effective when cutting difficult-to-machine materials. It can also be made into complex cutting tools because of its good grinding performance. China lacks cobalt resources, and cobalt high-speed steel is expensive, about the price of ordinary high-speed steel. ~ times. The cobalt high-speed steel produced in China has improved to a certain extent in terms of quenching and tempering hardness, hot hardness performance and other aspects, and is close to or reaching the level of imported steel. Hardness and uniformity after quenching and tempering. Product specifications~, hot rolled forged round steel, rectangular steel, square steel forgings, etc. Organize production according to/standards or user requirements.
Superhard high-speed tool steel is developed based on the advantages of high-carbon high-vanadium high-speed steel and high-carbon high-cobalt high-speed steel to meet the needs of processing difficult-to-cut materials, such as heat-resistant alloys. Generally hardness when in use. The process performance of this steel is better than that of steel, and its cold and hot processing properties are better. After quenching and tempering, the hardness is the same as steel. The steel has high wear resistance, high pressure resistance and sintering resistance.
Features
High red hot hardness, high wear resistance and cutting force, high impact toughness, fine and uniform grains
Tool industry scrapers, hobbing cutters, iron knives, drill bits, etc.
Forging molds for the forging industry.
Hexagonal head forming molds, tapping and punches for the screw industry.
Chemical composition list
Heat treatment
Isothermal annealing fire temperature is ~ ℃, with ~ ℃, the furnace is cooled to about ℃, and the hardness is above.
Preheating temperature ℃
Quenching temperature ℃
Tempering temperature ℃
Quenching method oil quenching air cooling or salt bath quenching
Refer to the corresponding grade
American standard grade Chinese standard grade, Japanese standard grade, Japanese Hitachi standard grade, Japanese Fujitsu standard grade, German standard grade, German standard material number, Austrian Bailu standard grade.
Typical application examples
Suitable for making various wear-resistant and impact-resistant tools for powerful cutting.
Used to make various high-hardness and ultra-high-hardness saw blades, drill bits, taps, broaches, hobs and various milling cutters.
Used for advanced punching screw dies and punches that require toughness and complex shapes.
Used for cold forging dies and drawing dies.
Recommended for use in watch case factories, screw factories and other cold stamping products industries
Our company specializes in the production of various grades of high-speed steel. New steel grades can be developed according to customers' actual applications. To ensure chemical composition and flaw detection, please bring the original material sheet to contact the production. The electroslag is redissolved and the carbides are small. Among them, the carbide particle size of the cold-drawn material was tested in the United States and reached 1 meter, which is much higher than the national standard. Strictly control the impact of impurity elements such as low magnification and microstructure on steel. The chemical composition follows the company's self-control standards and can reach around the national standard midline. We provide a quality guarantee, affordable prices, and complete specifications. Hot-rolled materials + cold-drawn materials + forged materials are all produced online. The chemical composition is guaranteed, and flaw detection can be guaranteed with the original material sheet.
Our company processes silver bright materials with lathes and grinders
Contact information
Company phone number
Company fax
Mobile phone
Contact person Wang Jiangfei
Domestic high-speed steel M42 W18 M35 M42 W9 factory available from stock