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SKD11 Mold Steel, Features, Hardness

2019-04-25
SKD11 material is a kind of high carbon high chromium alloy tool steel. It has high hardness and wear after heat treatment. It has strong hardenability and good dimensional stability. SKD11 mold steel is suitable for high precision long life cold working die and thermosetting.

SKD11 Mold Steel
SKD11 mold steel heat treatment hardness: HRC58-60
SKD11 mold steel features: good toughness and high temperature fatigue resistance can withstand temperature fusion, suitable for long-term work at high temperatures with good cutting performance and polishing performance

SKD11 mold steel use condition (for reference only)

1. Use in the state of "quenching + tempering"
2. Use in "quenching + cold treatment + tempering" state (suitable for high precision and dimensional stability requirements)
3. Use in the state of “quenching + tempering + nitriding treatment” (suitable for surface hardness requirements)
4. Cryogenic treatment For maximum hardness and dimensional stability, the mold is deep-cooled immediately after quenching -70 to -80 ° C for 3-4 hours, then tempered, and the cryogenically treated tool or mold is harder than conventional heat treatment. High hardness 1-3HRC. Parts with complex shapes and large dimensional changes have the risk of cracking during cryogenic treatment.
5. Nitriding treatment After nitriding the mold or workpiece, the surface forms a hardened structure with high hardness and certain corrosion resistance.
Wire-cutting A mold with a complicated shape or a large size is often subjected to cracking when SKD11 mold steel is finally subjected to wire-cutting. In order to prevent cracking. This mold steel is recommended to use gas quenching and high temperature tempering to reduce the heat treatment stress or pre-process the cavity.

SKD11 Mold Steel Application 

Thin sheet with a thickness of not more than 6mm, high efficiency blanking die. Punching and stamping die, various cutting tools, inserting blades, woodworking blade thread rolling die and wear-resistant slider cold heading die, thermosetting resin molding die, advanced gauge and other deep drawing and cold extrusion die.