What is the material of SKD 1 1?

SKD 1 1 is a universal cold working die steel with high wear resistance and toughness, high carbon and high chromium alloy tool steel and vacuum degassing refined steel. The steel is pure and has good hardening ability, good hardenability and small quenching deformation.

1 and SKD 1 1 are widely used as die-casting materials for aluminum and zinc. This kind of steel contains high-grade alloy steel containing tungsten, which is suitable for hot working and die casting of aluminum, magnesium, zinc and copper alloys.

2.SKD 1 1 is produced by Hitachi and Datong Iron and Steel Works. The trade name of SKD 1 1 produced by Hitachi is SLD (the latest improved version is called SLD-MAGIC), and the trade name of Datong Iron and Steel Plant is DC 1 1.

Extended data:

1 and SLD-MAGIC can be surface treated (CVD, TD, etc. ) Under the same conditions as SKD 1 1, SLD-MAGIC improves the adhesion of the surface treatment film according to the optimization of alloy elements.

2.SKD 1 1 is a cold die steel with good balance of strength, toughness and heat resistance. In recent years, with the development of isotropic products, it has been developing in the direction of high toughness, which can make the die have longer life, more stable performance, easier processing and less deformation during heat treatment.

3. Compared with SKD 1 1, SLD-MAGIC is more excellent in toughness, especially in low temperature tempering to improve peeling and cracking to obtain high toughness. The grindability of SLD-MAGIC is better than SKD 1 1 and 10%CR steel, and almost as good as 8%CR steel.

4.SKD 1 1 In order to obtain the highest hardness and dimensional stability, the die is subjected to cryogenic treatment at -70℃ to -80℃ immediately after quenching, and then tempered. The hardness of tools or dies after cryogenic treatment is higher than that of conventional heat treatment 1-3HRC.

References:

Baidu encyclopedia _SKD 1 1 Baidu encyclopedia _SLD-MAGIC