Cold and Hot Work Tool Steel

Cold and Hot Work Tool Steel: Types and Benefits

Cold Work Tool Steel

These steels are used to cut or shape materials at low temperatures. It has the distinctive features of high harden ability and wear resistance. It has moderate toughness and resistance to heat softening. It is divided into 3 main types:

  • These steels harden uniformly when hardened and then allowed to cool in air. It has minimal twisting during hardening and is known for its good formability or machine ability.
  • Oil-hardened cold working tool steels (Grade O) provide a good balance between wear resistance and toughness. It is easier to sharpen and has less twisting during hardening compared to water-hardened grades such as S50C carbon steel. Leong Jin offers this steel in grade DIN1.2510.
  • High Carbon Cold Work Tool Steel High Chromium (Grade D) these steels contain a high content of chromium, which improves their wear resistance. It has better hardening than Grade O and less twisting than Grade O as well. Usually used for making various molds and cutting tools, Leong Jin provides this kind of steel in grades DIN1.2379,TENASTEEL,TGX6,SKD11.

Benefits of Cold Work Tool Steel

  • High wear resistance.
  • It has good dimensional stability during heat hardening.
  • It is suitable for intricate shapes due to its good hardening ability

Hot Work Tool Steel

Hot-work tooling steels are used in high-temperature-related applications, such as hot forging dies. Die-casting and Extrusion Mold This steel has the property of maintaining strength and hardness at high temperatures and resistance to thermal fatigue. It is typically composed of tungsten, molybdenum, chromium, and vanadium. We divide the steel for hot work tools into 3 main types:

  • Grade H12 has excellent resistance to thermal cracking.
  • Grade H13 It is widely used because it has a good balance between toughness and hardness resistance to thermal cracking; the grades we are available for sale are such as DIN1.2344, DIN1.2714 etc.
  • Grade H19 is a hot tool steel with a higher level of tungsten content to increase hardness when used at very high temperatures.

Benefits of Hot Work Tool Steel

  • Resistance to softening at high temperatures;
  • It has good toughness and resistance to heat fatigue.
  • The ability to withstand rapid temperature changes;

Both cold and hot work tooling steels are important in the manufacturing process where the tools are subjected to different working conditions and temperaturesRead More

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