Carbon Chromium Tungsten Gb 3cr2w8v Steel Chemical Composition Analysis - China

gb 3cr2w8v steel is a commonly used hot working die steel, and its main chemical composition is as follows:

- **carbon (c)**: the content is generally between 0.30% and 0.40%.

carbon is an important element that affects the strength and hardness of steel.

in gb 3cr2w8v steel, an appropriate amount of carbon can ensure that the steel obtains a certain hardness and strength after quenching and tempering, and can also form carbides with other alloying elements to improve the wear resistance and hot hardness of the steel.

- **chromium (cr)**: the content is usually in the range of 2.20% - 2.70%.

chromium can improve the hardenability, corrosion resistance and oxidation resistance of steel.

in gb 3cr2w8v steel, the chromium element helps to form a dense oxide film on the mold surface, improve the mold's thermal fatigue resistance and oxidation resistance at high temperatures, and also enhance the hardness and strength of the steel.

- **tungsten (w)**: the content is about 7.50% - 9.00%.

tungsten is one of the main elements that improves the hot hardness and red hardness of steel.

in gb 3cr2w8v steel, tungsten can form stable tungsten carbide, which hinders the grain growth of steel at high temperatures and enables the steel to maintain high hardness and strength at high temperatures, thereby meeting the performance requirements of hot working molds under high temperature working conditions.

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