Esr Tungsten High Speed Jis Skh2 Steel Round Bars - China

SKH2 is a commonly used tungsten-based high-speed steel.

It is a ledeburite steel and is the most commonly used high-speed steel.

Like other high-speed steels, it is often called "white steel", "front steel" or "wind steel" (it can be quenched by air cooling).

SKH2 In steel, carbon mainly forms carbides with chromium, tungsten, molybdenum and vanadium (forming elements of carbides) to improve hardness, wear resistance and red hardness.

Tungsten is the main element that increases red hardness and forms carbides in steel.

During heating, part of the carbide dissolves into austenite, and after quenching, martensite is formed that contains a large amount of tungsten and other alloying elements and has high tempering stability.

During tempering, part of the tungsten disperses and precipitates in the form of carbides, causing secondary hardening.

During heating, undissolved carbides prevent the growth of austenite grains.

Vanadium can significantly improve the red hardness, hardness and wear resistance of high-speed steel.

The carbide formed by vanadium partially dissolves into austenite when heated, and disperses and precipitates as fine particles during tempering, causing secondary hardening and improving the red hardness of the steel.

Chromium is mainly used in high-speed steel to increase its hardenability, and it can also improve the steel's resistance to oxidation, decarburization and corrosion.

Cobalt can also significantly increase the red hardness and hardness of steel.

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